K. Häkkinen

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Muscle cross-sectional area and voluntary force production characteristics in elite strength- and endurance-trained athletes and sprinters

K. Häkkinen, K. Keskinen, 2006, European Journal of Applied Physiology and Occupational Physiology.

Kinematics, Kinetics, and Muscle Activation during Explosive Upper Body Movements

K. Häkkinen, R. Newton, W. Kraemer, 1996 .

This Reprint May Differ from the Original in Pagination and Typographic Detail. Muscle Activity and Inactivity Periods during Normal Daily Life

K. Häkkinen, T. Finni, Olli Tikkanen, 2022 .

Effects of fatigue and recovery on electromyographic and isometric force- and relaxation-time characteristics of human skeletal muscle

K. Häkkinen, P. Komi, 2004, European Journal of Applied Physiology and Occupational Physiology.

Aging, muscle fiber type, and contractile function in sprint-trained athletes.

K. Häkkinen, H. Suominen, J. Viitasalo, 2006, Journal of applied physiology.

Kinetic and electromyographic analysis of single repetition constant and variable resistance leg press actions.

K. Häkkinen, J. Avela, S. Walker, 2011, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

Individual Endurance Training Prescription with Heart Rate Variability.

K. Häkkinen, V. Vesterinen, A. Nummela, 2016, Medicine and science in sports and exercise.

A Submaximal Running Test With Postexercise Cardiac Autonomic and Neuromuscular Function in Monitoring Endurance Training Adaptation

Jussi Mikkola, Ville Vesterinen, Ari Nummela, 2017, Journal of strength and conditioning research.

Effects of HRV-Guided vs. Predetermined Block Training on Performance, HRV and Serum Hormones

K. Häkkinen, Olli-Pekka Nuuttila, Aku Nikander, 2017, International Journal of Sports Medicine.

Perspectives on Aerobic and Strength Influences on Military Physical Readiness: Report of an International Military Physiology Roundtable.

K. Häkkinen, W. Kraemer, H. Kyröläinen, 2015, Journal of strength and conditioning research.

Neuromuscular responses to explosive and heavy resistance loading.

R U Newton, P V Komi, V Linnamo, 2000, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

Acute hormonal responses to two different fatiguing heavy-resistance protocols in male athletes.

K. Häkkinen, A. Pakarinen, 1993, Journal of applied physiology.

EFFECTS OF STRENGTH TRAINING ON MUSCLE STRENGTH CHARACTERISTICS,FUNCTIONAL CAPABILITIES, AND BALANCE IN MIDDLE‐AGED AND OLDER WOMEN

William J Kraemer, K. Häkkinen, W. Kraemer, 2006, Journal of strength and conditioning research.

Maximal force, force/time and activation/coactivation characteristics of the neck muscles in extension and flexion in healthy men and women at different ages

K. Häkkinen, M. Alen, H. Valkeinen, 2002, European Journal of Applied Physiology.

Neuromuscular Characteristics and Fatigue During 10 km Running

K. Häkkinen, H. Rusko, A. Nummela, 1999, International journal of sports medicine.

Muscle strength in healthy people and in patients suffering from recent-onset inflammatory arthritis.

K. Häkkinen, P. Hannonen, A. Häkkinen, 1995, British journal of rheumatology.

Eight months of physical training in warm water improves physical and mental health in women with fibromyalgia: a randomized controlled trial.

K. Häkkinen, N. Gusi, P. Tomás-Carús, 2008, Journal of rehabilitation medicine.

Mechanical efficiency of locomotion in females during different kinds of muscle action

D. H. Kim, K. Häkkinen, P. Komi, 2004, European Journal of Applied Physiology and Occupational Physiology.

Maximal and explosive force production capacity and balance performance in men of different ages

Mikel Izquierdo, K. Häkkinen, M. Izquierdo, 1999, European Journal of Applied Physiology and Occupational Physiology.

Influence of load and stretch shortening cycle on the kinematics, kinetics and muscle activation that occurs during explosive upper-body movements

William J. Kraemer, Robert U. Newton, Aron J. Murphy, 1997, European Journal of Applied Physiology and Occupational Physiology.

Changes in isometric force- and relaxation-time, electromyographic and muscle fibre characteristics of human skeletal muscle during strength training and detraining.

P V Komi, K. Häkkinen, P. Komi, 1985, Acta physiologica Scandinavica.

Effect of explosive type strength training on isometric force- and relaxation-time, electromyographic and muscle fibre characteristics of leg extensor muscles.

P V Komi, K. Häkkinen, P. Komi, 1985, Acta physiologica Scandinavica.

Muscle conduction velocity, strength, neural activity, and morphological changes after eccentric and concentric training

W J Kraemer, K. Häkkinen, W. Kraemer, 2014, Scandinavian journal of medicine & science in sports.

Electromyographical and Perceptual Responses to Different Resistance Intensities in a Squat Protocol: Does Performing Sets to Failure With Light Loads Produce the Same Activity?

David P. Looney, K. Häkkinen, R. Newton, 2016, Journal of strength and conditioning research.

Effects of strength, endurance and combined training on muscle strength, walking speed and dynamic balance in aging men

A. Häkkinen, K. Häkkinen, J. Avela, 2011, European Journal of Applied Physiology.

Neuromuscular adaptations during bilateral versus unilateral strength training in middle-aged and elderly men and women.

W J Kraemer, R U Newton, V Linnamo, 1996, Acta physiologica Scandinavica.

Changes in muscle morphology, electromyographic activity, and force production characteristics during progressive strength training in young and older men.

W J Kraemer, R U Newton, K. Häkkinen, 1998, The journals of gerontology. Series A, Biological sciences and medical sciences.

Associations of Physical Fitness and Body Composition Characteristics With Simulated Military Task Performance

K. Häkkinen, H. Kyröläinen, M. Santtila, 2017, Journal of strength and conditioning research.

Comparison of running kinematics between elite and national-standard 1500-m runners

Heikki Kyröläinen, Mikko Virmavirta, Juha Isolehto, 2009, Sports biomechanics.

Monitoring Training and Recovery during a Period of Increased Intensity or Volume in Recreational Endurance Athletes

K. Häkkinen, H. Kyröläinen, A. Nummela, 2021, International journal of environmental research and public health.

Effect of Loading on Unintentional Lifting Velocity Declines During Single Sets of Repetitions to Failure During Upper and Lower Extremity Muscle Actions

K. Häkkinen, W. Kraemer, M. Izquierdo, 2005, International journal of sports medicine.

Neuromuscular fatigue after resistance training.

W J Kraemer, A Malanda, K. Häkkinen, 2009, International journal of sports medicine.

Neuromuscular and hormonal adaptations in athletes to strength training in two years.

P V Komi, K. Häkkinen, P. Komi, 1988, Journal of applied physiology.

Elevated endogenous testosterone concentrations potentiate muscle androgen receptor responses to resistance exercise

K. Häkkinen, W. Kraemer, J. Volek, 2009, The Journal of Steroid Biochemistry and Molecular Biology.

Acute and long-term effects of resistance exercise with or without protein ingestion on muscle hypertrophy and gene expression

K. Häkkinen, W. Kraemer, A. Mero, 2009, Amino Acids.

The effects of amino acid supplementation on hormonal responses to resistance training overreaching.

K. Häkkinen, R. Newton, W. Kraemer, 2006, Metabolism: clinical and experimental.

Positive Effects of Augmented Verbal Feedback on Power Production in NCAA Division I Collegiate Athletes

K. Häkkinen, W. Kraemer, C. Maresh, 2013, Journal of strength and conditioning research.

Heterogeneity in resistance training-induced muscle strength and mass responses in men and women of different ages

K. Häkkinen, A. Mero, H. Valkeinen, 2016, AGE.

Different hormonal response to continuous and intermittent exercise in middle‐distance and marathon runners

K. Häkkinen, T. Vuorimaa, M. Ahotupa, 2008, Scandinavian journal of medicine & science in sports.

Maximal strength and power, muscle mass, endurance and serum hormones in weightlifters and road cyclists

K. Häkkinen, W. Kraemer, M. Izquierdo, 2004, Journal of sports sciences.

Effects of Strength Training on Submaximal and Maximal Endurance Performance Capacity in Middle‐Aged and Older Men

K. Häkkinen, M. Izquierdo, E. Gorostiaga, 2003, Journal of strength and conditioning research.

Increased interleukin-6 and C-reactive protein levels after instrumented lumbar spine fusion in older patients

K. Häkkinen, H. Kautiainen, A. Häkkinen, 2019, Journal of orthopaedic surgery.

Force production characteristics of leg extensor, trunk flexor and extensor muscles in male and female basketball players.

K. Häkkinen, K Häkkinen, 1991, The Journal of sports medicine and physical fitness.

NEUROMUSCULAR PERFORMANCE CHARACTERISTICS OF OPEN‐WHEEL AND RALLY DRIVERS

K. Häkkinen, H. Kyröläinen, A. Häkkinen, 2005, Journal of strength and conditioning research.

Neck Muscle Strength and Mobility of the Cervical Spine as Predictors of Neck Pain: A Prospective 6-Year Study

K. Häkkinen, H. Kautiainen, A. Häkkinen, 2012, Spine.

Exercise in waist-high warm water decreases pain and improves health-related quality of life and strength in the lower extremities in women with fibromyalgia.

K. Häkkinen, N. Gusi, P. Tomás-Carús, 2006, Arthritis and rheumatism.

Biomechanical Comparison Between Sprint Start, Sled Pulling, and Selected Squat-Type Exercises

K. Häkkinen, Olli Okkonen, 2013, Journal of strength and conditioning research.

Specificity of endurance, sprint and strength training on physical performance capacity in young athletes.

K. Häkkinen, A. Mero, H. Kauhanen, 1989, The Journal of sports medicine and physical fitness.

Changes in physical fitness profile in female basketball players during the competitive season including explosive type strength training.

K. Häkkinen, 1993, The Journal of sports medicine and physical fitness.

Detraining Produces Minimal Changes in Physical Performance and Hormonal Variables in Recreationally Strength‐Trained Men

K. Häkkinen, S. Gordon, R. Newton, 2002, Journal of strength and conditioning research.

Neuromuscular fatigue and recovery in women at different ages during heavy resistance loading.

K. Häkkinen, 1995, Electromyography and clinical neurophysiology.

Variable resistance training promotes greater fatigue resistance but not hypertrophy versus constant resistance training

K. Häkkinen, W. Kraemer, S. Walker, 2013, European Journal of Applied Physiology.

Molecular signaling in muscle is affected by the specificity of resistance exercise protocol

K. Häkkinen, W. Kraemer, S. Walker, 2012, Scandinavian journal of medicine & science in sports.

Improvements of muscle strength predicted benefits in HRQOL and postural balance in women with fibromyalgia: an 8-month randomized controlled trial.

K. Häkkinen, N. Gusi, P. Tomás-Carús, 2009, Rheumatology.

Molecular Pathways Mediating Immunosuppression in Response to Prolonged Intensive Physical Training, Low-Energy Availability, and Intensive Weight Loss

K. Kristiansson, K. Häkkinen, M. Perola, 2019, Front. Immunol..

Exercise type and volume alter signaling pathways regulating skeletal muscle glucose uptake and protein synthesis

K. Häkkinen, H. Kyröläinen, S. Walker, 2015, European Journal of Applied Physiology.

Autophagy is induced by resistance exercise in young men, but unfolded protein response is induced regardless of age

K. Häkkinen, A. Mero, T. Raastad, 2018, Acta physiologica.

Effects of Combined Strength and Endurance Training on Physical Performance and Biomarkers of Healthy Young Women

K. Häkkinen, H. Kyröläinen, A. Hackney, 2017, Journal of strength and conditioning research.

Associations of leisure time, commuting, and occupational physical activity with physical fitness and cardiovascular risk factors in young men.

K. Häkkinen, H. Kyröläinen, T. Vasankari, 2014, Journal of physical activity & health.

Effect of combined concentric and eccentric strength training and detraining on force-time, muscle fiber and metabolic characteristics of leg extensor muscles

Paavo V. Komi, Per A. Tesch, K. Häkkinen, 1981 .

DETRAINING AND TAPERING EFFECTS ON HORMONAL RESPONSES AND STRENGTH PERFORMANCE

K. Häkkinen, W. Kraemer, M. Izquierdo, 2007, Journal of strength and conditioning research.

Serum hormones during prolonged training of neuromuscular performance

K. Häkkinen, P. Komi, M. Alen, 2004, European Journal of Applied Physiology and Occupational Physiology.

Standardization and Validation of the Body Weight Adjustment Regression Equations in Olympic Weightlifting

K. Häkkinen, P. Komi, H. Kauhanen, 2002, Journal of strength and conditioning research.

Effects of strength and endurance training on metabolic risk factors in healthy 40–65‐year‐old men

K. Häkkinen, D. Laaksonen, E. Sillanpää, 2009, Scandinavian journal of medicine & science in sports.

The effects of whey protein with or without carbohydrates on resistance training adaptations

K. Häkkinen, A. Mero, H. Peltonen, 2015, Journal of the International Society of Sports Nutrition.

Hormonal responses of multiset versus single-set heavy-resistance exercise protocols.

K. Häkkinen, R. Newton, W. Kraemer, 1997, Canadian journal of applied physiology = Revue canadienne de physiologie appliquee.

Responses of IGF-I to endogenous increases in growth hormone after heavy-resistance exercise.

K. Häkkinen, S. Gordon, R. Newton, 1995, Journal of applied physiology.

Acute Hormonal Responses to Heavy Resistance Exercise in Men and Women at Different Ages

K. Häkkinen, A. Pakarinen, 1995, International journal of sports medicine.

Basal concentrations and acute responses of serum hormones and strength development during heavy resistance training in middle-aged and elderly men and women.

K. Häkkinen, R. Newton, W. Kraemer, 2000, The journals of gerontology. Series A, Biological sciences and medical sciences.

Exercise medicine for cancer cachexia: targeted exercise to counteract mechanisms and treatment side effects

K. Häkkinen, R. Newton, W. Kraemer, 2022, Journal of Cancer Research and Clinical Oncology.

Changes in Maximal and Explosive Strength, Electromyography, and Muscle Thickness of Lower and Upper Extremities Induced by Combined Strength and Endurance Training in Soldiers

K. Häkkinen, H. Kyröläinen, M. Santtila, 2009, Journal of strength and conditioning research.

Resistance training induced increase in muscle fiber size in young and older men

K. Häkkinen, A. Mero, V. Kovanen, 2013, European Journal of Applied Physiology.

Fitness, body composition and blood lipids following 3 concurrent strength and endurance training modes.

K. Häkkinen, A. Häkkinen, J. Laukkanen, 2016, Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme.

Combined aerobic and resistance training decreases inflammation markers in healthy men

K. Häkkinen, A. Mero, G. Paulsen, 2018, Scandinavian journal of medicine & science in sports.

Physiological performance, serum hormones, enzymes and lipids of an elite power athlete during training with and without androgens and during prolonged detraining. A case study.

K. Häkkinen, M. Alen, 1986, The Journal of sports medicine and physical fitness.

Physical fitness, BMI and sickness absence in male military personnel.

K. Häkkinen, H. Kyröläinen, H. Kautiainen, 2008, Occupational medicine.

Radiotherapy before or during androgen-deprivation therapy does not blunt the exercise-induced body composition protective effects in prostate cancer patients: A secondary analysis of two randomized controlled trials

Maren S Fragala, K. Häkkinen, R. Newton, 2021, Experimental Gerontology.

Postexercise myostatin and activin IIb mRNA levels: effects of strength training.

K. Häkkinen, M. Alen, A. Mero, 2007, Medicine and science in sports and exercise.

THE IMPACT OF VELOCITY OF MOVEMENT ON PERFORMANCE FACTORS IN RESISTANCE EXERCISE

K. Häkkinen, R. Newton, W. Kraemer, 2006, Journal of strength and conditioning research.

Acute heavy-resistance exercise-induced pain and neuromuscular fatigue in elderly women with fibromyalgia and in healthy controls: effects of strength training.

K. Häkkinen, P. Hannonen, M. Alen, 2006, Arthritis and rheumatism.

Muscle hypertrophy, strength development, and serum hormones during strength training in elderly women with fibromyalgia

K. Häkkinen, W. Kraemer, P. Hannonen, 2005, Scandinavian journal of rheumatology.

Sex differences in creatine kinase after acute heavy resistance exercise on circulating granulocyte estradiol receptors

K. Häkkinen, W. Kraemer, C. Denegar, 2012, European Journal of Applied Physiology.

CHANGES IN BODY COMPOSITION , HORMONAL STATUS , AND PHYSICAL FITNESS IN 11-, 13-, AND 15-YEAR-OLD FINNISH REGIONAL YOUTH SOCCER PLAYERS

K. Häkkinen, M. Blomqvist, K. Nyman, 2011 .

Changes in Body Composition, Hormonal Status, and Physical Fitness in 11-, 13-, and 15-Year-Old Finnish Regional Youth Soccer Players During a Two-Year Follow-Up

K. Häkkinen, T. Vänttinen, M. Blomqvist, 2011, Journal of strength and conditioning research.

Training-Load-Guided vs Standardized Endurance Training in Recreational Runners.

K. Häkkinen, J. Botella, L. Karavirta, 2017, International journal of sports physiology and performance.

Cytokine and hormone responses to resistance training

K. Häkkinen, W. Kraemer, M. Izquierdo, 2009, European Journal of Applied Physiology.

PGC-1 isoforms and their target genes are expressed differently in human skeletal muscle following resistance and endurance exercise

K. Häkkinen, H. Kyröläinen, T. Laine, 2015, Physiological reports.

The Effects of Resistance Training on Physical Fitness and Neuromotor-Cognitive Functions in Adults With Down Syndrome

K. Häkkinen, R. Newton, W. Kraemer, 2022, Frontiers in Rehabilitation Sciences.

Serum Sex Hormone–Binding Globulin and Cortisol Concentrations are Associated With Overreaching During Strenuous Military Training

K. Häkkinen, H. Kyröläinen, M. Atalay, 2011, Journal of strength and conditioning research.

Effects of resistance training on testosterone metabolism in younger and older men

K. Häkkinen, W. Kraemer, I. Huhtaniemi, 2015, Experimental Gerontology.

Physiological, Perceptual, and Performance Responses to the 2-Week Block of High- versus Low-Intensity Endurance Training

K. Häkkinen, H. Kyröläinen, A. Nummela, 2022, Medicine and science in sports and exercise.

womenserum hormones during strength training in older Selective muscle hypertrophy, changes in EMG and force,

K. Häkkinen, W. Kraemer, M. Alen, 2013 .

Effects of strength training on muscle power and serum hormones in middle-aged and older men.

K. Häkkinen, M. Izquierdo, E. Gorostiaga, 2001, Journal of applied physiology.

Effects of resistance training on expression of IGF-I splice variants in younger and older men

K. Häkkinen, W. Kraemer, M. Alen, 2016, European journal of sport science.

Effect of circulating growth hormone on muscle IGF-I protein concentration in female mice with growth hormone receptor gene disruption.

Maren S Fragala, K. Häkkinen, W. Kraemer, 2009, Growth hormone & IGF research : official journal of the Growth Hormone Research Society and the International IGF Research Society.

Mitochondrial bioenergetic pathways in blood leukocyte transcriptome decrease after intensive weight loss but are rescued following weight regain in female physique athletes

K. Häkkinen, M. Perola, K. Pietiläinen, 2021, FASEB journal : official publication of the Federation of American Societies for Experimental Biology.

Heavy resistance exercise training and skeletal muscle androgen receptor expression in younger and older men

K. Häkkinen, W. Kraemer, M. Alen, 2011, Steroids.

Acute Neuromuscular and Hormonal Responses to Power, Strength, and Hypertrophic Protocols and Training Background

K. Häkkinen, S. Walker, J. Kotikangas, 2022, Frontiers in sports and active living.

Increased rate of force development during periodized maximum strength and power training is highly individual

K. Häkkinen, J. Avela, A. Hackney, 2018, European Journal of Applied Physiology.

Recovery From a National Collegiate Athletic Association Division I Football Game: Muscle Damage and Hormonal Status

Maren S Fragala, K. Häkkinen, W. Kraemer, 2009, Journal of strength and conditioning research.

HORMONAL ADAPTATIONS IN TRAINED MEN

K. Häkkinen, M. Alen, A. Pakarinen, 2019 .

Acute Neuromuscular and Hormonal Responses to Different Exercise Loadings Followed by a Sauna.

K. Häkkinen, W. Kraemer, A. Häkkinen, 2020, Journal of strength and conditioning research.

Changes in Cardiovascular Performance During an 8-Week Military Basic Training Period Combined with Added Endurance or Strength Training.

K. Häkkinen, H. Kyröläinen, M. Santtila, 2008, Military medicine.

Addition of strength training to off-road cyclists training. A pilot study

K. Häkkinen, R. Sabido, R. López-Grueso, 2016 .

Neuromuscular Adaptations to Different Modes of Combined Strength and Endurance Training

K. Häkkinen, J. Avela, R. Newton, 2014, International Journal of Sports Medicine.

Cardiovascular and Neuromuscular Performance Responses Induced by 8 Weeks of Basic Training Followed by 8 Weeks of Specialized Military Training

K. Häkkinen, H. Kyröläinen, M. Santtila, 2012, Journal of strength and conditioning research.

Effects of basic training on acute physiological responses to a combat loaded run test.

K. Häkkinen, W. Kraemer, H. Kyröläinen, 2010, Military medicine.

Concurrent endurance and explosive type strength training improves neuromuscular and anaerobic characteristics in young distance runners.

K. Häkkinen, H. Rusko, A. Nummela, 2007, International journal of sports medicine.

Effects of combined resistance and cardiovascular training on strength, power, muscle cross-sectional area, and endurance markers in middle-aged men

K. Häkkinen, W. Kraemer, M. Izquierdo, 2005, European Journal of Applied Physiology.

Changes in muscle hypertrophy in women with periodized resistance training.

K. Häkkinen, R. Newton, W. Kraemer, 2004, Medicine and science in sports and exercise.

Effects of concurrent resistance and aerobic training on load-bearing performance and the Army physical fitness test.

K. Häkkinen, R. Newton, W. Kraemer, 2004, Military medicine.

Acute hormonal responses to heavy resistance exercise in strength athletes versus nonathletes.

K. Häkkinen, W. Kraemer, A. Pakarinen, 2004, Canadian journal of applied physiology = Revue canadienne de physiologie appliquee.

The effects of creatine supplementation on muscular performance and body composition responses to short-term resistance training overreaching

K. Häkkinen, W. Kraemer, J. Volek, 2004, European Journal of Applied Physiology.

Resistance training combined with bench-step aerobics enhances women's health profile.

K. Häkkinen, S. Gordon, R. Newton, 2001, Medicine and science in sports and exercise.

The effects of short-term resistance training on endocrine function in men and women

K. Häkkinen, S. Gordon, R. Newton, 1998, European Journal of Applied Physiology and Occupational Physiology.

Androgen receptors and testosterone in men—Effects of protein ingestion, resistance exercise and fiber type

K. Häkkinen, A. Mero, V. Kovanen, 2008, The Journal of Steroid Biochemistry and Molecular Biology.

Effects of strength training and reduced training on functional performance and metabolic health indicators in middle-aged men.

K. Häkkinen, W. Kraemer, M. Alen, 2007, International journal of sports medicine.

The repeated bout effect of typical lower body strength training sessions on sub-maximal running performance and hormonal response

K. Häkkinen, A. Leicht, W. Sinclair, 2015, European Journal of Applied Physiology.

Influence of HMB Supplementation and Resistance Training on Cytokine Responses to Resistance Exercise

David P. Looney, K. Häkkinen, R. Newton, 2014, Journal of the American College of Nutrition.

Enzymatic adaptations consequent to long-term strength training.

K. Häkkinen, P. Komi, P. Tesch, 1987, International journal of sports medicine.

Neuromuscular adaptations during intensive strength training in middle-aged and elderly males and females.

K. Häkkinen, A. Häkkinen, 1995, Electromyography and clinical neurophysiology.

Distribution of strength training volume into one or two daily sessions and neuromuscular adaptations in female athletes.

K. Häkkinen, M. Kallinen, 1994, Electromyography and clinical neurophysiology.

Inter‐individual variation in response to resistance training in cardiometabolic health indicators

K. Häkkinen, E. Sillanpää, J. Sallinen, 2020, Scandinavian journal of medicine & science in sports.

MIL12276 234..238

K. Häkkinen, H. Kyröläinen, K. Pihlainen, 2013 .

Comparison between direct and predicted maximal oxygen uptake measurement during cycling.

K. Häkkinen, H. Kyröläinen, M. Santtila, 2013, Military medicine.

Effect of exercise intensity on bone density, strength, and calcium turnover in older women.

K. Häkkinen, R. Newton, W. Kraemer, 2000, Medicine and science in sports and exercise.

Neuromuscular adaptations and serum hormones in females during prolonged power training.

D. H. Kim, K. Häkkinen, P. Komi, 1990, International journal of sports medicine.

Effects of Far Infrared Heat on Recovery in Power Athletes

K. Häkkinen, A. Mero, P. Noponen, 2015 .

Mucosal immunity and upper respiratory tract symptoms in recreational endurance runners.

K. Häkkinen, A. Mero, M. Schumann, 2016, Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme.

Endogenous opioid peptide responses to opioid and anti-inflammatory medications following eccentric exercise-induced muscle damage

Maren S Fragala, K. Häkkinen, R. Newton, 2010, Peptides.

Are skeletal muscle FNDC5 gene expression and irisin release regulated by exercise and related to health?

K. Häkkinen, M. Alen, E. Pöllänen, 2013, The Journal of physiology.

Acute responses of comprehensive gonadosteroids and corticosteroids to resistance exercise before and after 10 weeks of supervised strength training

K. Häkkinen, R. Newton, A. Blazevich, 2019, Experimental physiology.

Acute Hemodynamic Responses to Combined Exercise and Sauna

K. Häkkinen, A. Häkkinen, J. Laukkanen, 2020, International Journal of Sports Medicine.

Training volume, androgen use and serum creatine kinase activity.

K. Häkkinen, M. Alen, 1989, British journal of sports medicine.

Hormonal adaptations and modelled responses in elite weightlifters during 6 weeks of training

K. Häkkinen, P. Komi, J. Lacour, 2004, European Journal of Applied Physiology and Occupational Physiology.

Individualized Endurance Training Based on Recovery and Training Status in Recreational Runners

K. Häkkinen, H. Kyröläinen, A. Nummela, 2022, Medicine and Science in Sports and Exercise.

Biomechanical and skeletal muscle determinants of maximum running speed with aging.

K. Häkkinen, H. Suominen, J. Viitasalo, 2009, Medicine and science in sports and exercise.

Serum Basal Hormone Concentrations, Nutrition and Physical Fitness During Strength and/or Endurance Training in 39–64-Year-Old Women

K. Häkkinen, W. Kraemer, D. Laaksonen, 2009, International journal of sports medicine.

Effect of resistance exercise on muscle steroid receptor protein content in strength-trained men and women

Maren S Fragala, K. Häkkinen, W. Kraemer, 2009, Steroids.

Effects of prolonged hypertrophic resistance training on acute endocrine responses in young and older men.

K. Häkkinen, W. Kraemer, S. Walker, 2015, Journal of aging and physical activity.

Effects of Combined Strength and Endurance Training on Body Composition, Physical Fitness, and Serum Hormones During a 6-Month Crisis Management Operation

K. Häkkinen, H. Kyröläinen, M. Santtila, 2020, Journal of strength and conditioning research.

Substantial Fat Loss in Physique Competitors Is Characterized by Increased Levels of Bile Acids, Very-Long Chain Fatty Acids, and Oxylipins

K. Häkkinen, V. Salomaa, M. Perola, 2022, Metabolites.

Association of military training with oxidative stress and overreaching.

K. Häkkinen, H. Kyröläinen, M. Atalay, 2011, Medicine and science in sports and exercise.

Endocrine Response Patterns to Acute Unilateral and Bilateral Resistance Exercise in Men

Jacob E Earp, K. Häkkinen, W. Kraemer, 2010, Journal of strength and conditioning research.

Effects of exercise and alkalosis on serum insulin-like growth factor I and IGF-binding protein-3.

K. Häkkinen, S. Gordon, R. Newton, 2000, Canadian journal of applied physiology = Revue canadienne de physiologie appliquee.

Daily hormonal and neuromuscular responses to intensive strength training in 1 week.

K. Häkkinen, P. Komi, M. Alen, 1988, International journal of sports medicine.

Differences in Training Adaptations of Endurance Performance during Combined Strength and Endurance Training in a 6-Month Crisis Management Operation

K. Häkkinen, H. Kyröläinen, M. Santtila, 2020, International journal of environmental research and public health.

Effect of Prolonged Military Field Training on Neuromuscular and Hormonal Responses and Shooting Performance in Warfighters.

K. Häkkinen, H. Kyröläinen, T. Ojanen, 2018, Military medicine.

Neuromuscular responses in male and female athletes to two successive strength training sessions in one day.

K. Häkkinen, 1992, The Journal of sports medicine and physical fitness.

Heart Rate-Running Speed Index May Be an Efficient Method of Monitoring Endurance Training Adaptation

K. Häkkinen, V. Vesterinen, A. Nummela, 2014, Journal of strength and conditioning research.

Changes in exercise performance and hormonal concentrations over a big ten soccer season in starters and nonstarters.

K. Häkkinen, R. Newton, W. Kraemer, 2004 .

Recovery after Heavy Resistance Exercise and Skeletal Muscle Androgen Receptor and Insulin-Like Growth Factor-I Isoform Expression in Strength Trained Men

K. Häkkinen, W. Kraemer, M. Alen, 2011, Journal of strength and conditioning research.

Effects of amino acids supplement on physiological adaptations to resistance training.

Maren S Fragala, K. Häkkinen, W. Kraemer, 2009, Medicine and science in sports and exercise.

Acute neuromuscular and hormonal responses to 20 versus 40% velocity loss in males and females before and after 8 weeks of velocity‐loss resistance training

K. Häkkinen, F. Pareja-Blanco, S. Walker, 2022, Experimental physiology.

Serum hormone concentrations during prolonged training in elite endurance-trained and strength-trained athletes

K. Häkkinen, K. Keskinen, P. Komi, 2006, European Journal of Applied Physiology and Occupational Physiology.

Effects of prolonged training on serum thyrotropin and thyroid hormones in elite strength athletes.

K. Häkkinen, M. Alen, A. Pakarinen, 1993, Journal of sports sciences.

Panoramic ultrasonography is a valid method to measure changes in skeletal muscle cross-sectional area

Janne Avela, K. Häkkinen, J. Avela, 2009, European Journal of Applied Physiology.

Neuromuscular Adaptations to Constant vs. Variable Resistance Training in Older Men

K. Häkkinen, J. Avela, W. Kraemer, 2013, International Journal of Sports Medicine.

Influence of muscle strength and total work on exercise-induced plasma growth hormone isoforms in women.

K. Häkkinen, W. Kraemer, N. Ratamess, 2003, Journal of science and medicine in sport.

The effect of heavy resistance exercise on the circadian rhythm of salivary testosterone in men

Noel D. Duncan, N. D. Duncan, K. Häkkinen, 2001, European Journal of Applied Physiology.

Common genetic variation in the IGF1 associates with maximal force output.

K. Häkkinen, H. Kyröläinen, M. Atalay, 2011, Medicine and science in sports and exercise.

Androgenic steroid effects on serum hormones and on maximal force development in strength athletes.

K. Häkkinen, M. Alen, 1987, The Journal of sports medicine and physical fitness.

[Changes in muscle power production capacity in power athletes self-administering androgenic anabolic steroids].

K. Häkkinen, P. Komi, M. Alen, 1984, Duodecim; laaketieteellinen aikakauskirja.

Trunk Muscle Strength After Lumbar Spine Fusion: A 12-Month Follow-up

K. Häkkinen, W. Kraemer, J. Dekker, 2018, Neurospine.

Acute changes in muscle activation and leg extension performance after different running exercises in elite long distance runners

K. Häkkinen, T. Vasankari, T. Vuorimaa, 2006, European Journal of Applied Physiology.

Comparison of Three Maximal Anaerobic Running Test Protocols in Marathon Runners, Middle-Distance Runners and Sprinters

K. Häkkinen, H. Rusko, T. Vuorimaa, 1996, International journal of sports medicine.

Acute Floatation-REST Improves Perceived Recovery After a High-Intensity Resistance Exercise Stress in Trained Men

K. Häkkinen, R. Newton, W. Kraemer, 2022, Medicine and science in sports and exercise.

Body composition, fitness, and metabolic health during strength and endurance training and their combination in middle-aged and older women

K. Häkkinen, W. Kraemer, D. Laaksonen, 2009, European Journal of Applied Physiology.

Hormonal Contraceptive Use Does Not Affect Strength, Endurance, or Body Composition Adaptations to Combined Strength and Endurance Training in Women.

K. Häkkinen, H. Kyröläinen, A. Hackney, 2018, Journal of strength and conditioning research.

Serum basal hormone concentrations and muscle mass in aging women: effects of strength training and diet.

K. Häkkinen, W. Kraemer, J. Volek, 2006, International journal of sport nutrition and exercise metabolism.

Heterogeneity in resistance training-induced muscle strength and mass responses in men and women of different ages

K. Häkkinen, A. Mero, H. Valkeinen, 2016, AGE.

Resistance Training Load Effects on Muscle Hypertrophy and Strength Gain: Systematic Review and Network Meta-analysis

K. Häkkinen, R. Newton, W. Kraemer, 2020, Medicine and science in sports and exercise.

Acute Neuromuscular and Endocrine Responses and Recovery to Single-Session Combined Endurance and Strength Loadings: “Order Effect” in Untrained Young Men

K. Häkkinen, W. Kraemer, M. Izquierdo, 2013, Journal of strength and conditioning research.

Serum thyroid hormones, thyrotropin and thyroxine binding globulin in elite athletes during very intense strength training of one week.

K. Häkkinen, M. Alen, A. Pakarinen, 1991, The Journal of sports medicine and physical fitness.

Neuromuscular characteristics and fatigue in endurance and sprint athletes during a new anaerobic power test

K. Häkkinen, A. Nummela, L. Paavolainen, 2004, European Journal of Applied Physiology and Occupational Physiology.

Changes in myosin heavy chain composition with heavy resistance training in 60- to 75-year-old men and women

K. Häkkinen, R. Newton, W. Kraemer, 2001, European Journal of Applied Physiology.

Maximal strength and power, endurance performance, and serum hormones in middle-aged and elderly men.

K. Häkkinen, M. Izquierdo, E. Gorostiaga, 2001, Medicine and science in sports and exercise.

Serum hormones in soldiers after basic training: effect of added strength or endurance regimens.

K. Häkkinen, H. Kyröläinen, M. Santtila, 2009, Aviation, space, and environmental medicine.

Substantial fat mass loss reduces low-grade inflammation and induces positive alteration in cardiometabolic factors in normal-weight individuals

K. Kristiansson, K. Häkkinen, M. Perola, 2019, Scientific Reports.

ACUTE HORMONAL RESPONSES TO SUBMAXIMAL AND MAXIMAL HEAVY RESISTANCE AND EXPLOSIVE EXERCISES IN MEN AND WOMEN

K. Häkkinen, P. Komi, W. Kraemer, 2005, Journal of strength and conditioning research.

Increased fascicle length but not patellar tendon stiffness after accentuated eccentric-load strength training in already-trained men

K. Häkkinen, R. Newton, A. Blazevich, 2020, European Journal of Applied Physiology.

Influence of exercise training on physiological and performance changes with weight loss in men.

K. Häkkinen, S. Gordon, R. Newton, 1999, Medicine and science in sports and exercise.

Muscle hypertrophy, hormonal adaptations and strength development during strength training in strength-trained and untrained men

William J. Kraemer, Arto Pakarinen, K. Häkkinen, 2003, European Journal of Applied Physiology.

Acute hormonal and neuromuscular responses and recovery to forced vs maximum repetitions multiple resistance exercises.

K. Häkkinen, W. Kraemer, A. Pakarinen, 2003, International journal of sports medicine.

Effects of heavy-resistance training on hormonal response patterns in younger vs. older men.

K. Häkkinen, S. Gordon, R. Newton, 1999, Journal of applied physiology.

Acute hormonal responses to heavy resistance exercise in younger and older men

K. Häkkinen, S. Gordon, R. Newton, 1998, European Journal of Applied Physiology and Occupational Physiology.

Changes in knee extension and flexion force, EMG and functional capacity during strength training in older females with fibromyalgia and healthy controls.

K. Häkkinen, P. Hannonen, M. Alen, 2003, Rheumatology.

Strength training induced adaptations in neuromuscular function of premenopausal women with fibromyalgia: comparison with healthy women

K. Häkkinen, P. Hannonen, M. Alen, 2001, Annals of the rheumatic diseases.

Effects of strength training on neuromuscular function and disease activity in patients with recent-onset inflammatory arthritis.

K. Häkkinen, P. Hannonen, A. Häkkinen, 1994, Scandinavian journal of rheumatology.

The Impact of Cold-Water Immersion on Power Production in the Vertical Jump and the Benefits of a Dynamic Exercise Warm-Up

K. Häkkinen, W. Kraemer, J. Volek, 2010, Journal of strength and conditioning research.

Neutral Spine Control Exercises in Rehabilitation After Lumbar Spine Fusion

K. Häkkinen, R. Newton, W. Kraemer, 2014, Journal of strength and conditioning research.

Muscle strength and range of movement deficits 1 year after hip resurfacing surgery using posterior approach

K. Häkkinen, I. Kiviranta, H. Kautiainen, 2010, Disability and rehabilitation.

Effects of Age and Soccer Expertise on General Tests of Perceptual and Motor Performance among Adolescent Soccer Players

K. Häkkinen, P. Luhtanen, T. Vänttinen, 2010, Perceptual and motor skills.

On "The Basics of Training for Muscle Size and Strength".

Caleb D. Bazyler, Brad H. DeWeese, Jacob E Earp, 2020, Medicine and science in sports and exercise.

Basal Endogenous Steroid Hormones, Sex Hormone-Binding Globulin, Physical Fitness, and Health Risk Factors in Young Adult Men

K. Häkkinen, H. Kyröläinen, M. Santtila, 2018, Front. Physiol..

Association of physical fitness with health-related quality of life in Finnish young men

K. Häkkinen, H. Kyröläinen, T. Vasankari, 2010, Health and quality of life outcomes.

Greater Strength Gains after Training with Accentuated Eccentric than Traditional Isoinertial Loads in Already Strength-Trained Men

K. Häkkinen, R. Newton, A. Blazevich, 2016, Front. Physiol..

CHANGES IN EXERCISE PERFORMANCE AND HORMONAL CONCENTRATIONS OVER A BIG TEN SOCCER SEASON IN STARTERS AND NONSTARTERS

Jason D Vescovi, Margot Putukian, Robert U Newton, 2004, Journal of strength and conditioning research.

Effects of Easy-to-Use Protein-Rich Energy Bar on Energy Balance, Physical Activity and Performance during 8 Days of Sustained Physical Exertion

K. Häkkinen, K. Westerterp, H. Kyröläinen, 2012, PloS one.

Relationships between training volume, physical performance capacity, and serum hormone concentrations during prolonged training in elite weight lifters.

P V Komi, K. Häkkinen, P. Komi, 1987, International journal of sports medicine.

Maximal strength and power characteristics in isometric and dynamic actions of the upper and lower extremities in middle-aged and older men.

K. Häkkinen, M. Izquierdo, E. Gorostiaga, 1999, Acta physiologica Scandinavica.

Neuromuscular adaptations during concurrent strength and endurance training versus strength training

M. Izquierdo, L. Paavolainen, H. Rusko, 2003, European Journal of Applied Physiology.

Responses of serum androgenic-anabolic and catabolic hormones to prolonged strength training.

K. Häkkinen, P. Komi, M. Alen, 1988, International journal of sports medicine.

The Effects of Amino Acid Supplementation on Muscular Performance During Resistance Training Overreaching

K. Häkkinen, R. Newton, W. Kraemer, 2003, Journal of strength and conditioning research.

Serum thyroid hormones, thyrotropin and thyroxine binding globulin during prolonged strength training

K. Häkkinen, P. Komi, M. Alen, 2004, European Journal of Applied Physiology and Occupational Physiology.

Effects of strength vs. endurance training and their combination on physical performance characteristics in female horseback riders.

K. Häkkinen, Anne-Maarit Hyttinen, 2020, The Journal of sports medicine and physical fitness.

Physical fitness profile in female horseback riders.

K. Häkkinen, Anne-Maarit Hyttinen, 2019, The Journal of sports medicine and physical fitness.

Effects of combined strength and sprint training on regulation of muscle contraction at the whole‐muscle and single‐fibre levels in elite master sprinters

K. Häkkinen, H. Suominen, J. Viitasalo, 2008, Acta physiologica.

Individual responses to combined endurance and strength training in older adults.

K. Häkkinen, E. Sillanpää, A. Häkkinen, 2011, Medicine and science in sports and exercise.

Body composition and fitness during strength and/or endurance training in older men.

K. Häkkinen, W. Kraemer, D. Laaksonen, 2008, Medicine and science in sports and exercise.

Muscle cross-sectional area, force production and relaxation characteristics in women at different ages

K. Häkkinen, A. Häkkinen, Keijo Häkkinen, 2004, European Journal of Applied Physiology and Occupational Physiology.

Changes in electromyographic activity, muscle fibre and force production characteristics during heavy resistance/power strength training in middle-aged and older men and women.

W J Kraemer, R U Newton, K. Häkkinen, 2001, Acta physiologica Scandinavica.

Neuromuscular adaptation during prolonged strength training, detraining and re-strength-training in middle-aged and elderly people

K. Häkkinen, R. Newton, W. Kraemer, 2000, European Journal of Applied Physiology.

Acute hormone responses to heavy resistance lower and upper extremity exercise in young versus old men

K. Häkkinen, R. Newton, W. Kraemer, 1998, European Journal of Applied Physiology and Occupational Physiology.

Bilateral and unilateral neuromuscular function and muscle cross-sectional area in middle-aged and elderly men and women.

K. Häkkinen, R. Newton, W. Kraemer, 1996, The journals of gerontology. Series A, Biological sciences and medical sciences.

Effects of Upper Body Eccentric versus Concentric Strength Training and Detraining on Maximal Force, Muscle Activation, Hypertrophy and Serum Hormones in Women.

K. Häkkinen, R. Newton, W. Kraemer, 2022, Journal of sports science & medicine.

Differential effects of strength training leading to failure versus not to failure on hormonal responses, strength, and muscle power gains.

Juan José González-Badillo, William J Kraemer, Mikel Izquierdo, 2006, Journal of applied physiology.

CONCURRENT ENDURANCE AND EXPLOSIVE TYPE STRENGTH TRAINING INCREASES ACTIVATION AND FAST FORCE PRODUCTION OF LEG EXTENSOR MUSCLES IN ENDURANCE ATHLETES

K. Häkkinen, H. Rusko, A. Nummela, 2007, Journal of strength and conditioning research.

Effect of low-dose endurance training on heart rate variability at rest and during an incremental maximal exercise test

Jussi Mikkola, Heikki Rusko, K. Häkkinen, 2008, European Journal of Applied Physiology.

Training-induced changes in daily energy expenditure: Methodological evaluation using wrist-worn accelerometer, heart rate monitor, and doubly labeled water technique

Heikki Kyröläinen, Hannu Kinnunen, Laura Karavirta, 2019, PloS one.

Effects of morning vs. evening combined strength and endurance training on physical performance, sleep and well-being

K. Häkkinen, A. Häkkinen, J. Liukkonen, 2019, Chronobiology international.

Combined Strength and Endurance Training Improves Health-Related Quality of Life in Healthy Middle-Aged and Older Adults

K. Häkkinen, E. Sillanpää, A. Häkkinen, 2012, International Journal of Sports Medicine.

Retracted Article: Association of physical fitness with health-related quality of life in Finnish young men

Heikki Kyröläinen, Arja Häkkinen, Matti Santtila, 2010, Quality of Life Research.

Effects of prolonged combined strength and endurance training on physical fitness, body composition and serum hormones in women with rheumatoid arthritis and in healthy controls.

K. Häkkinen, W. Kraemer, P. Hannonen, 2005, Clinical and experimental rheumatology.

The Effects of Intensive Weight Reduction on Body Composition and Serum Hormones in Female Fitness Competitors

K. Häkkinen, M. Perola, A. Wennerström, 2017, Front. Physiol..

Neuromuscular Adaptations to Same-Session Combined Endurance and Strength Training in Recreational Endurance Runners

K. Häkkinen, K. Doma, L. Karavirta, 2016, International Journal of Sports Medicine.

Maximal Strength, Muscular Endurance and Inflammatory Biomarkers in Young Adult Men

K. Häkkinen, H. Kyröläinen, T. Vasankari, 2014, International Journal of Sports Medicine.

Low-volume circuit versus high-volume periodized resistance training in women.

W J Kraemer, R U Newton, K. Häkkinen, 2001, Medicine and science in sports and exercise.

Effects of strength training and nutritional counseling on metabolic health indicators in aging women.

K. Häkkinen, W. Kraemer, J. Volek, 2005, Canadian journal of applied physiology = Revue canadienne de physiologie appliquee.

Neuromuscular function and balance of prepubertal and pubertal blind and sighted boys

K. Häkkinen, H. Kautiainen, E. Sillanpää, 2006, Acta paediatrica.

STRENGTH AND POWER PROFILES OF THE LOWER AND UPPER EXTREMITIES IN MASTER THROWERS AT DIFFERENT AGES

Tommi Ojanen, Teemu Rauhala, K. Häkkinen, 2007, Journal of strength and conditioning research.

Changes in agonist-antagonist EMG, muscle CSA, and force during strength training in middle-aged and older people.

W J Kraemer, R U Newton, K. Häkkinen, 1998, Journal of applied physiology.

Neuromuscular fatigue and recovery in maximal compared to explosive strength loading

P. V. Komi, K. Häkkinen, P. Komi, 1997, European Journal of Applied Physiology and Occupational Physiology.

Selective muscle hypertrophy, changes in EMG and force, and serum hormones during strength training in older women.

W J Kraemer, K. Häkkinen, W. Kraemer, 2001, Journal of applied physiology.

Leukocyte β2-adrenergic receptor expression in response to resistance exercise.

Maren S Fragala, K. Häkkinen, W. Kraemer, 2011, Medicine and science in sports and exercise.

Resistance training induced increase in muscle fiber size in young and older men

K. Häkkinen, A. Mero, V. Kovanen, 2013, European Journal of Applied Physiology.

Microdialysis-Assessed Exercised Muscle Reveals Localized and Differential IGFBP Responses to Unilateral Stretch Shortening Cycle Exercise

K. Häkkinen, H. Kyröläinen, B. Nindl, 2020, Frontiers in Endocrinology.

Effects of heavy resistance/power training on maximal strength, muscle morphology, and hormonal response patterns in 60-75-year-old men and women.

K. Häkkinen, R. Newton, W. Kraemer, 2002, Canadian Journal of Applied Physiology.

Moderate-Load Muscular Endurance Strength Training Did Not Improve Peak Power or Functional Capacity in Older Men and Women

K. Häkkinen, R. Newton, G. G. Haff, 2017, Front. Physiol..

Medium-intensity, high-volume “hypertrophic” resistance training did not induce improvements in rapid force production in healthy older men

K. Häkkinen, S. Walker, H. Peltonen, 2015, AGE.

Changes in neuromuscular performance and muscle fiber characteristics of elite power athletes self-administering androgenic and anabolic steroids.

K. Häkkinen, P. Komi, M. Alen, 1984, Acta physiologica Scandinavica.

Heart Rate Dynamics after Combined Strength and Endurance Training in Middle-Aged Women: Heterogeneity of Responses

Arja Häkkinen, Ary L. Goldberger, Laura Karavirta, 2013, PloS one.

Strength training and neuromuscular function in elderly people with total knee endoprosthesis

K. Häkkinen, P. Komi, M. Perhonen, 1992 .

Body composition in 18‐ to 88‐year‐old adults—comparison of multifrequency bioimpedance and dual‐energy X‐ray absorptiometry

Taija Finni, Elina Sillanpää, Arto Pesola, 2014, Obesity.

Effects of prolonged and maintenance strength training on force production, walking, and balance in aging women and men

K. Häkkinen, W. Kraemer, M. Alen, 2014, Scandinavian journal of medicine & science in sports.

The influence of direct supervision of resistance training on strength performance.

Noel D. Duncan, N. D. Duncan, K. Häkkinen, 2000, Medicine and science in sports and exercise.

Factors Affecting Flutter Kicking Speed in Women Who Are Competitive and Recreational Swimmers

Maren S Fragala, Disa L Hatfield, Jakob L Vingren, 2009, Journal of strength and conditioning research.

Aquatic training and detraining on fitness and quality of life in fibromyalgia.

K. Häkkinen, N. Gusi, P. Tomás-Carús, 2007, Medicine and science in sports and exercise.

Adverse Metabolic Response to Regular Exercise: Is It a Rare or Common Occurrence?

K. Häkkinen, W. Kraus, C. Bouchard, 2012, PloS one.

Effects of ballistic training on preseason preparation of elite volleyball players.

W J Kraemer, R U Newton, K. Häkkinen, 1999, Medicine and science in sports and exercise.

Arousal/Stress Effects of “Overwatch” eSports Game Competition in Collegiate Gamers

K. Häkkinen, R. Newton, W. Kraemer, 2022, Journal of Strength and Conditioning Research.

Effects of concurrent strength and endurance training in women with early or longstanding rheumatoid arthritis: comparison with healthy subjects.

K. Häkkinen, P. Hannonen, A. Häkkinen, 2003, Arthritis and rheumatism.

DETERMINATION OF FUNCTIONAL STRENGTH IMBALANCE OF THE LOWER EXTREMITIES

Sophia Nimphius, Robert U Newton, William J Kraemer, 2006, Journal of strength and conditioning research.

Changes in Physical Performance During 21 d of Military Field Training in Warfighters.

K. Häkkinen, H. Kyröläinen, T. Vasankari, 2018, Military medicine.

Evaluation of occupational physical load during 6-month international crisis management operation.

K. Häkkinen, H. Kyröläinen, T. Vasankari, 2017, International journal of occupational medicine and environmental health.

Electromyographic changes during strength training and detraining.

P V Komi, K. Häkkinen, P. Komi, 1983, Medicine and science in sports and exercise.

Cardiorespiratory Adaptations during Concurrent Aerobic and Strength Training in Men and Women

K. Häkkinen, C. Abbiss, M. Schumann, 2015, PloS one.

Strength Training in Endurance Runners

K. Häkkinen, W. Kraemer, S. Walker, 2010, International journal of sports medicine.

Oxygen uptake, heart rate and blood lactate levels in female horseback riders during the obstacle test track

K. Häkkinen, J. Ahtiainen, Anne-Maarit Hyttinen, 2020 .

Active recovery shows favorable IGF-I and IGF binding protein responses following heavy resistance exercise compared to passive recovery.

K. Häkkinen, H. Kyröläinen, B. Nindl, 2019, Growth hormone & IGF research : official journal of the Growth Hormone Research Society and the International IGF Research Society.

Acute elevations in serum hormones are attenuated after chronic training with traditional isoinertial but not accentuated eccentric loads in strength‐trained men

K. Häkkinen, R. Newton, A. Blazevich, 2017, Physiological reports.

Acute Endocrine and Force Responses and Long-Term Adaptations to Same-Session Combined Strength and Endurance Training in Women

K. Häkkinen, W. Kraemer, M. Izquierdo, 2016, Journal of strength and conditioning research.

The order effect of combined endurance and strength loadings on force and hormone responses: effects of prolonged training

K. Häkkinen, R. Newton, W. Kraemer, 2014, European Journal of Applied Physiology.

Variable resistance training promotes greater fatigue resistance but not hypertrophy versus constant resistance training

K. Häkkinen, W. Kraemer, S. Walker, 2013, European Journal of Applied Physiology.

Neuromuscular and hormonal responses to constant and variable resistance loadings.

K. Häkkinen, W. Kraemer, S. Walker, 2011, Medicine and science in sports and exercise.

Effect of Time‐of‐Day‐Specific Strength Training on Serum Hormone Concentrations and Isometric Strength in Men

William J. Kraemer, Taija Finni, Milan Sedliak, 2007, Chronobiology international.

strength, and muscle power gains failure versus not to failure on hormonal responses, Differential effects of strength training leading to

K. Häkkinen, W. Kraemer, M. Izquierdo, 2006 .

Neuromuscular and hormonal adaptations during strength and power training. A review.

K. Häkkinen, K Häkkinen, 1989, The Journal of sports medicine and physical fitness.

Effects of strength and endurance training on antioxidant enzyme gene expression and activity in middle‐aged men

K. Häkkinen, J. González‐Gallego, E. Sillanpää, 2007, Scandinavian journal of medicine & science in sports.

FOUR WEEKS OF OPTIMAL LOAD BALLISTIC RESISTANCE TRAINING AT THE END OF SEASON ATTENUATES DECLINING JUMP PERFORMANCE OF WOMEN VOLLEYBALL PLAYERS

K. Häkkinen, R. Newton, W. Kraemer, 2006, Journal of strength and conditioning research.

EMG, muscle fibre and force production characteristics during a 1 year training period in elite weight-lifters

Paavo V. Komi, Heikki Kauhanen, K. Häkkinen, 2004, European Journal of Applied Physiology and Occupational Physiology.

Effects of L-Carnitine L-Tartrate Supplementation on Muscle Oxygenation Responses to Resistance Exercise

K. Häkkinen, W. Kraemer, J. Volek, 2008, Journal of strength and conditioning research.

Neuromuscular and Cardiovascular Adaptations During Concurrent Strength and Endurance Training in Untrained Men

K. Häkkinen, M. Izquierdo, H. Rusko, 2012, International Journal of Sports Medicine.

The effects of a roundtrip trans-American jet travel on physiological stress, neuromuscular performance, and recovery.

Steven J Fleck, Shawn D Flanagan, Jakob L Vingren, 2016, Journal of applied physiology.

l-Carnitine l-tartrate supplementation favorably affects biochemical markers of recovery from physical exertion in middle-aged men and women.

Michael A. Coday, Maren S Fragala, K. Häkkinen, 2010, Metabolism: clinical and experimental.

Neuromuscular Adaptations to Combined Strength and Endurance Training: Order and Time-of-Day

K. Häkkinen, J. Avela, R. Newton, 2017, International Journal of Sports Medicine.

Fitness and lean mass increases during combined training independent of loading order.

K. Häkkinen, R. Newton, A. Häkkinen, 2014, Medicine and science in sports and exercise.

Effects of combined endurance and strength training on muscle strength, power and hypertrophy in 40–67‐year‐old men

K. Häkkinen, M. Izquierdo, M. Alen, 2011, Scandinavian journal of medicine & science in sports.

Acute leukocyte, cytokine and adipocytokine responses to maximal and hypertrophic resistance exercise bouts

K. Häkkinen, W. Kraemer, A. Mero, 2014, European Journal of Applied Physiology.

Acute neuromuscular and metabolic responses to combined strength and endurance loadings: the “order effect” in recreationally endurance trained runners

K. Häkkinen, H. Kyröläinen, A. Nummela, 2014, Journal of sports sciences.

Morphological, molecular and hormonal adaptations to early morning versus afternoon resistance training

K. Häkkinen, M. Zeman, T. Raastad, 2018, Chronobiology international.

Aerobic and neuromuscular performance capacity of physically active females with early or long-term rheumatoid arthritis compared to matched healthy women

K. Häkkinen, P. Hannonen, A. Häkkinen, 2002, Scandinavian journal of rheumatology.

The relationship between dynamic, isokinetic and isometric strength and bone mineral density in a population of 45 to 65 year old women.

K. Häkkinen, R. Newton, W. Kraemer, 1999, Journal of science and medicine in sport.

Training-induced changes in neuromuscular performance under voluntary and reflex conditions

K. Häkkinen, P. Komi, 2004, European Journal of Applied Physiology and Occupational Physiology.

Effects of long-term training specificity on maximal strength and power of the upper and lower extremities in athletes from different sports

Mikel Izquierdo, K. Häkkinen, M. Izquierdo, 2002, European Journal of Applied Physiology.

Effects of time of day on resistance exercise-induced anabolic signaling in skeletal muscle

K. Häkkinen, H. Kyröläinen, M. Zeman, 2013 .

Electromyographic and mechanical characteristics of human skeletal muscle during fatigue under voluntary and reflex conditions.

P V Komi, K. Häkkinen, P. Komi, 1983, Electroencephalography and clinical neurophysiology.

Glucocorticoid Receptor Expression on Human B Cells in Response to Acute Heavy Resistance Exercise

K. Häkkinen, W. Kraemer, J. Volek, 2011, Neuroimmunomodulation.

Cardiorespiratory and Neuromuscular Responses to Motocross Riding

K. Häkkinen, H. Kyröläinen, T. Konttinen, 2008, Journal of strength and conditioning research.

Sex differences in creatine kinase after acute heavy resistance exercise on circulating granulocyte estradiol receptors

K. Häkkinen, W. Kraemer, C. Denegar, 2012, European Journal of Applied Physiology.

Muscle mass and strength, body composition and dietary intake in master strength athletes vs untrained men of different ages.

K. Häkkinen, J. Sallinen, L. Karavirta, 2008, The Journal of sports medicine and physical fitness.

Health-Promoting Effects of Serial vs. Integrated Combined Strength and Aerobic Training

K. Häkkinen, A. Zafeiridis, K. Karatrantou, 2016, International Journal of Sports Medicine.

RELATIONSHIP BETWEEN THE NUMBER OF REPETITIONS AND SELECTED PERCENTAGES OF ONE REPETITION MAXIMUM IN FREE WEIGHT EXERCISES IN TRAINED AND UNTRAINED MEN

Robert U Newton, Steven J Fleck, Maren S Fragala, 2006, Journal of strength and conditioning research.

Neuromuscular adaptations and hormone balance in strength athletes, physically active males and females during intensive strength training

Paavo V. Komi, Keijo Häkkinen, Heikki Kauhanen, 1989 .

Effects of training on bone metabolism in young athletes

K. Häkkinen, H. Kyröläinen, A. Mero, 2021, Human Movement.

Body composition changes by DXA, BIA and skinfolds during exercise training in women

Arja Häkkinen, Elina Sillanpää, K. Häkkinen, 2013, European Journal of Applied Physiology.

Hormonal stress responses of growth hormone and insulin-like growth factor-I in highly resistance trained women and men.

K. Häkkinen, R. Newton, W. Kraemer, 2021, Growth hormone & IGF research : official journal of the Growth Hormone Research Society and the International IGF Research Society.

Mixed Maximal and Explosive Strength Training in Recreational Endurance Runners

K. Häkkinen, W. Kraemer, V. Vesterinen, 2014, Journal of strength and conditioning research.

Acute Hormonal and Force Responses to Combined Strength and Endurance Loadings in Men and Women: The “Order Effect”

K. Häkkinen, Ritva S. Taipale, 2013, PloS one.

Muscle strength and serum testosterone, cortisol and SHBG concentrations in middle-aged and elderly men and women.

K. Häkkinen, A. Pakarinen, K Häkkinen, 1993, Acta physiologica Scandinavica.

Effects of time-of-day on neuromuscular function in untrained men: Specific responses of high morning performers and high evening performers

K. Häkkinen, M. Sedliak, Maria Küüsmaa, 2015, Chronobiology international.

Lower-Body Muscle Structure and Its Role in Jump Performance During Squat, Countermovement, and Depth Drop Jumps

Jacob E Earp, K. Häkkinen, R. Newton, 2010, Journal of strength and conditioning research.

Effects of concurrent strength and endurance training on physical fitness and symptoms in postmenopausal women with fibromyalgia: a randomized controlled trial.

K. Häkkinen, P. Hannonen, M. Alen, 2008, Archives of physical medicine and rehabilitation.

Heart rate dynamics after combined endurance and strength training in older men.

Hannu Kinnunen, Arja Häkkinen, Laura Karavirta, 2009, Medicine and science in sports and exercise.

Muscle activation and force production during bilateral and unilateral concentric and isometric contractions of the knee extensors in men and women at different ages.

W J Kraemer, R U Newton, K. Häkkinen, 1997, Electromyography and clinical neurophysiology.

Effects of Stretching on Upper-Body Muscular Performance

Maren S Fragala, K. Häkkinen, W. Kraemer, 2008, Journal of strength and conditioning research.

Effect of resistance training on women's strength/power and occupational performances.

W J Kraemer, R U Newton, K. Häkkinen, 2001, Medicine and science in sports and exercise.

Differential effects of exhaustive cycle ergometry on concentric and eccentric torque production.

K. Häkkinen, S. Gordon, R. Newton, 2001, Journal of science and medicine in sport.

Adverse Cardiovascular Response to Aerobic Exercise Training: Is This a Concern?

K. Häkkinen, W. Kraus, E. Leifer, 2016, Medicine and science in sports and exercise.

Physical fitness profiles in young Finnish men during the years 1975-2004.

K. Häkkinen, H. Kyröläinen, T. Vasankari, 2006, Medicine and science in sports and exercise.

Acute Effects of High-intensity Resistance Exercise on Cognitive Function.

K. Häkkinen, R. Newton, W. Kraemer, 2021, Journal of sports science & medicine.

Changes in neuromuscular performance in voluntary and reflex contraction during strength training in man.

K. Häkkinen, P. Komi, 1983, International journal of sports medicine.

A systems model of training responses and its relationship to hormonal responses in elite weight-lifters

P. V. Komi, J. R. Lacour, K. Häkkinen, 2004, European Journal of Applied Physiology and Occupational Physiology.

Validity of Using Velocity to Estimate Intensity in Resistance Exercises in Men and Women

K. Häkkinen, F. Pareja-Blanco, S. Walker, 2020, International Journal of Sports Medicine.

Axial neck rotation strength in neutral and prerotated postures.

Jari Ylinen, Arja Häkkinen, Hannu Kautiainen, 2003, Clinical biomechanics.

Neuromuscular and hormonal responses in elite athletes to two successive strength training sessions in one day

K. Häkkinen, P. Komi, M. Alen, 2004, European Journal of Applied Physiology and Occupational Physiology.

Development of body composition, hormone profile, physical fitness, general perceptual motor skills, soccer skills and on-the-ball performance in soccer-specific laboratory test among adolescent soccer players.

K. Häkkinen, T. Vänttinen, M. Blomqvist, 2010, Journal of sports science & medicine.

EFFECTS OF IN-SEASON STRENGTH AND POWER TRAINING ON SQUAT JUMP PERFORMANCE IN NCAA WOMEN VOLLEYBALL PLAYERS

K. Häkkinen, R. Newton, W. Kraemer, 2001 .

Changes in physical fitness profile in female volleyball players during the competitive season.

K. Häkkinen, 1993, The Journal of sports medicine and physical fitness.

Neuromuscular fatigue in young and older men using constant or variable resistance

K. Häkkinen, J. Avela, S. Walker, 2013, European Journal of Applied Physiology.

Effects of Task-Specific and Strength Training on Simulated Military Task Performance in Soldiers

K. Häkkinen, H. Kyröläinen, T. Ojanen, 2020, International journal of environmental research and public health.

Changes in strength and power performance and serum hormone concentrations during 12 weeks of task‐specific or strength training in conscripts

K. Häkkinen, H. Kyröläinen, T. Ojanen, 2020, Physiological reports.

Hormonal Responses to Active and Passive Recovery After Load Carriage

K. Häkkinen, H. Kyröläinen, M. Santtila, 2015, Journal of strength and conditioning research.

Oxygen Uptake, Acid-Base Balance and Anaerobic Energy System Contribution in Maximal 300 â 400 M Running in Child, Adolescent and Adult Athletes

K. Häkkinen, T. Pullinen, V. Linnamo, 2016 .

Effects of fatiguing loading with a variable resistance equipment on neural activation and force production of the knee extensor muscles.

K. Häkkinen, P. Komi, H. Kauhanen, 1988, Electromyography and clinical neurophysiology.

Neuromuscular responses to different resistance loading protocols using pneumatic and weight stack devices.

K. Häkkinen, J. Avela, H. Peltonen, 2013, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

Neuromuscular performance in voluntary bilateral and unilateral contraction and during electrical stimulation in men at different ages

K. Häkkinen, V. Linnamo, U. Pastinen, 2004, European Journal of Applied Physiology and Occupational Physiology.

Cardiorespiratory responses induced by various military field tasks.

K. Häkkinen, H. Kyröläinen, H. Lindholm, 2014, Military medicine.

Neuromuscular, anaerobic, and aerobic performance characteristics of elite power athletes

K. Häkkinen, P. Komi, M. Alen, 2004, European Journal of Applied Physiology and Occupational Physiology.

SHORT VS.LONG REST PERIOD BETWEEN THE SETS IN HYPERTROPHIC RESISTANCE TRAINING: INFLUENCE ON MUSCLE STRENGTH,SIZE, AND HORMONAL ADAPTATIONS IN TRAINED MEN

Arto Pakarinen, William J Kraemer, Juha P Ahtiainen, 2005, Journal of strength and conditioning research.

Neuromuscular Fatigue to Power Loading Using a Weight-Stack Device Fitted With or Without Additional Rubber Band Resistance

K. Häkkinen, J. Avela, S. Walker, 2014, Journal of strength and conditioning research.

Neuromuscular fatigue during dynamic maximal strength and hypertrophic resistance loadings.

Janne Avela, Simon Walker, K. Häkkinen, 2012, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

Scientific Evaluation of Specific Loading of the Knee Extensors with Variable Resistance, ‘Isokinetic’ and Barbell Exercises1

K. Häkkinen, P. Komi, H. Kauhanen, 1987 .

This Reprint May Differ from the Original in Pagination and Typographic Detail. Aerobic Fitness Does Not Modify the Effect of Fto Variation on Body Composition Traits

K. Häkkinen, H. Kyröläinen, M. Atalay, 2022 .

K. Häkkinen, S. Walker, 2014, Journal of strength and conditioning research.

Muscle CSA, Force Production, and Activation of Leg Extensors during Isometric and Dynamic Actions in Middle-Aged and Elderly Men and Women

K. Häkkinen, R. Newton, W. Kraemer, 1998 .

Effects of Different Accentuated Eccentric Load Levels in Eccentric-Concentric Actions on Acute Neuromuscular, Maximal Force, and Power Responses

K. Häkkinen, Timo Ojasto, 2009, Journal of strength and conditioning research.

Strength Athletes Are Capable to Produce Greater Muscle Activation and Neural Fatigue During High-Intensity Resistance Exercise Than Nonathletes

K. Häkkinen, J. Ahtiainen, 2009, Journal of strength and conditioning research.

Acute effects of muscle fatigue and recovery on force production and relaxation in endurance, power and strength athletes.

K. Häkkinen, E. Myllylä, 1990, The Journal of sports medicine and physical fitness.

Alterations of mechanical characteristics of human skeletal muscle during strength training

K. Häkkinen, P. Komi, 2004, European Journal of Applied Physiology and Occupational Physiology.

Reliability of the reactive strength index, eccentric utilisation ratio, and pre-stretch augmentation in untrained, novice jumpers

Anthony J. Blazevich, Robert U. Newton, Keijo Häkkinen, 2013 .

Effects of Different Accentuated Eccentric Loads on Acute Neuromuscular, Growth Hormone, and Blood Lactate Responses During a Hypertrophic Protocol

K. Häkkinen, Timo Ojasto, 2009, Journal of strength and conditioning research.

Periodized Training Programmes for Athletes

K. Häkkinen, R. Newton, W. Kraemer, 2008 .

Strength training for sport

William J. Kraemer, Keijo Häkkinen, K. Häkkinen, 2002 .

Neuromuscular Fatigue and Recovery in Male and Female Athletes during Heavy Resistance Exercise

K. Häkkinen, K Häkkinen, 1993, International journal of sports medicine.

Aerobic fitness, energy balance, and body mass index are associated with training load assessed by activity energy expenditure

K. Häkkinen, H. Kyröläinen, A. Uusitalo, 2009, Scandinavian journal of medicine & science in sports.

Effect of Time-of-Day-Specific Strength Training on Muscular Hypertrophy in Men

K. Häkkinen, T. Finni, Sulin Cheng, 2009, Journal of strength and conditioning research.

Effect of time-of-day-specific strength training on maximum strength and EMG activity of the leg extensors in men

K. Häkkinen, T. Finni, M. Sedliak, 2008, Journal of sports sciences.

Effect of alkalosis on plasma epinephrine responses to high intensity cycle exercise in humans

K. Häkkinen, S. Gordon, R. Newton, 2002, European Journal of Applied Physiology.

Fatigue in a simulated cross-country skiing sprint competition

K. Häkkinen, V. Vesterinen, A. Nummela, 2009, Journal of sports sciences.

Predictors of individual adaptation to high‐volume or high‐intensity endurance training in recreational endurance runners

K. Häkkinen, V. Vesterinen, A. Nummela, 2016, Scandinavian Journal of Medicine & Science in Sports.

Effects of the tennis tournament on players' physical performance, hormonal responses, muscle damage and recovery.

K. Häkkinen, T. Ojala, 2013, Journal of sports science & medicine.

Power Output and Electromyographic Activity During and After a Moderate Load Muscular Endurance Session

K. Häkkinen, S. Tokmakidis, I. Smilios, 2010, Journal of strength and conditioning research.

Effects of Power Training With Stretch‐Shortening Cycle (SSC) Exercises of Upper Limbs in Untrained Women

K. Häkkinen, P. Komi, H. Kyröläinen, 1998 .

Isometric parameters in the monitoring of maximal strength, power, and hypertrophic resistance-training.

K. Häkkinen, J. Avela, S. Walker, 2018, Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme.

Aiming strategy affects performance‐related factors in biathlon standing shooting

K. Häkkinen, V. Linnamo, K. Ruotsalainen, 2020, Scandinavian journal of medicine & science in sports.

Acute Physiological Responses to Four Running Sessions Performed at Different Intensity Zones

K. Häkkinen, H. Kyröläinen, A. Nummela, 2020, International Journal of Sports Medicine.

Relationship between heart rate variability and the serum testosterone-to-cortisol ratio during military service

K. Häkkinen, V. Linnamo, M. Tulppo, 2009 .

Effects of morning versus evening combined strength and endurance training on physical performance, muscle hypertrophy, and serum hormone concentrations.

K. Häkkinen, R. Newton, W. Kraemer, 2016, Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme.

The repeated bout effect of typical lower body strength training sessions on sub-maximal running performance and hormonal response

K. Häkkinen, A. Leicht, W. Sinclair, 2015, European Journal of Applied Physiology.

Physical Fitness in Postmenopausal Women with Fibromyalgia

K. Häkkinen, P. Hannonen, M. Alen, 2007, International journal of sports medicine.

Randomized controlled trial of postoperative exercise rehabilitation program after lumbar spine fusion: study protocol

K. Häkkinen, J. Dekker, A. Häkkinen, 2012, BMC Musculoskeletal Disorders.

High Responders to Hypertrophic Strength Training Also Tend to Lose More Muscle Mass and Strength During Detraining Than Low Responders

K. Häkkinen, J. Avela, D. Kidgell, 2021, Journal of strength and conditioning research.

Diurnal variation in maximal and submaximal strength, power and neural activation of leg extensors in men: multiple sampling across two consecutive days.

K. Häkkinen, T. Finni, S. Cheng, 2008, International journal of sports medicine.

XVth congress of the international society of biomechanics : book of abstracts

Kari L. Keskinen, Paavo V. Komi, K. Häkkinen, 1995 .

Heart rate variability in prediction of individual adaptation to endurance training in recreational endurance runners

K. Häkkinen, V. Vesterinen, A. Nummela, 2013, Scandinavian journal of medicine & science in sports.

Effects of strength training on muscle strength, cross-sectional area, maximal electromyographic activity, and serum hormones in premenopausal women with fibromyalgia.

K. Häkkinen, P. Hannonen, M. Alen, 2002, The Journal of rheumatology.

Testosterone responses after resistance exercise in women: influence of regional fat distribution.

K. Häkkinen, R. Newton, W. Kraemer, 2001, International journal of sport nutrition and exercise metabolism.

Serum hormone and myocellular protein recovery after intermittent runs at the velocity associated with V˙O2max

K. Häkkinen, T. Vasankari, H. Rusko, 1999, European Journal of Applied Physiology and Occupational Physiology.

Serum hormones and strength development during strength training in middle-aged and elderly males and females.

K. Häkkinen, A. Pakarinen, 1994, Acta physiologica Scandinavica.

Neuromuscular adaptations during combined strength and endurance training in endurance runners: maximal versus explosive strength training or a mix of both

K. Häkkinen, V. Vesterinen, A. Nummela, 2013, European Journal of Applied Physiology.

Velocity-based resistance training: do women need greater velocity loss to maximize adaptations?

K. Häkkinen, F. Pareja-Blanco, S. Walker, 2022, European Journal of Applied Physiology.

Monitoring Training Adaptation With a Submaximal Running Test Under Field Conditions.

K. Häkkinen, V. Vesterinen, A. Nummela, 2016, International journal of sports physiology and performance.

Biomechanical analysis of different starting strategies utilized during cross-country skiing starts

K. Häkkinen, V. Linnamo, H. Holmberg, 2016, European journal of sport science.

Changes in physical fitness profile during the competitive season in elite bandy players.

K. Häkkinen, P. Sinnemäki, 1991, The Journal of sports medicine and physical fitness.

Maximum oxygen uptake, anaerobic power and neuromuscular performance characteristics in bandy players of two different competitive levels.

K. Häkkinen, P. Sinnemäki, 1990, The Journal of sports medicine and physical fitness.

Relationship Between Off-Ice Testing Variables and On-Ice Speed in Women's Collegiate Synchronized Figure Skaters: Implications for Training

Jacob E Earp, K. Häkkinen, W. Kraemer, 2010, Journal of strength and conditioning research.

Explosive‐strength training improves 5‐km running time by improving running economy and muscle power

K. Häkkinen, H. Rusko, A. Nummela, 1999, Journal of applied physiology.

A 10-Week Block of Combined High-Intensity Endurance and Strength Training Produced Similar Changes in Dynamic Strength, Body Composition, and Serum Hormones in Women and Men

K. Häkkinen, H. Kyröläinen, J. Ihalainen, 2020, Frontiers in Sports and Active Living.

Effects of detraining subsequent to strength training on neuromuscular function in patients with inflammatory arthritis.

K. Häkkinen, P. Hannonen, A. Häkkinen, 1997, British journal of rheumatology.

Exercise type and volume alter signaling pathways regulating skeletal muscle glucose uptake and protein synthesis

K. Häkkinen, H. Kyröläinen, S. Walker, 2015, European Journal of Applied Physiology.

Active and passive recovery influence responses of luteinizing hormone and

K. Häkkinen, H. Kyröläinen, B. Nindl, 2017 .

INFLUENCE OF EXERCISE ORDER IN A RESISTANCE‐TRAINING EXERCISE SESSION

Maren S Fragala, K. Häkkinen, R. Newton, 2006, Journal of strength and conditioning research.

In vivo vibrational wave propagation in human tibiae at different ages

D. H. Kim, K. Häkkinen, P. Komi, 2006, European Journal of Applied Physiology and Occupational Physiology.

External rotation strength deficit after hip resurfacing surgery

K. Häkkinen, I. Kiviranta, H. Kautiainen, 2009, Disability and rehabilitation.

Randomized controlled trial of postoperative exercise rehabilitation program after lumbar spine fusion: study protocol

K. Häkkinen, J. Dekker, A. Häkkinen, 2012, BMC Musculoskeletal Disorders.

This Reprint May Differ from the Original in Pagination and Typographic Detail. Randomized Controlled Trial of Postoperative Exercise Rehabilitation Program after Lumbar Spine Fusion: Study Protocol Randomized Controlled Trial of Postoperative Exercise Rehabilitation Program after Lumbar Spine Fusio

K. Häkkinen, J. Dekker, A. Häkkinen, 2022 .

Force production capacity and acute neuromuscular responses to fatiguing loading in women with fibromyalgia are not different from those of healthy women.

K. Häkkinen, P. Hannonen, M. Alen, 2000, The Journal of rheumatology.

Dietary Intake, Serum Hormones, Muscle Mass and Strength During Strength Training in 49 - 73-Year-Old Men

K. Häkkinen, W. Kraemer, M. Alen, 2007, International journal of sports medicine.

Relationship between diet and serum anabolic hormone responses to heavy-resistance exercise in men.

K. Häkkinen, W. Kraemer, J. Volek, 2004, International journal of sports medicine.

Electromyographic and Force Production Characteristics of Leg Extensor Muscles of Elite Weight Lifters During Isometric, Concentric, and Various Stretch-Shortening Cycle Exercises

P V Komi, K. Häkkinen, P. Komi, 1986, International journal of sports medicine.

Effects of different strength training frequencies on maximum strength, body composition and functional capacity in healthy older individuals

K. Häkkinen, G. G. Haff, S. Walker, 2017, Experimental Gerontology.

Neuromuscular fatigue in males and females during strenuous heavy resistance loading.

K. Häkkinen, K Häkkinen, 1994, Electromyography and clinical neurophysiology.

Effects of Prolonged Hypertrophic Resistance Training on Acute Endocrine Responses in Young and Older Men.

K. Häkkinen, W. Kraemer, S. Walker, 2014, Journal of aging and physical activity.

Neuromuscular adaptations and serum hormones in women during short-term intensive strength training

K. Häkkinen, A. Pakarinen, M. Kallinen, 2004, European Journal of Applied Physiology and Occupational Physiology.

Stength, Endurance or Combined Training Elicit Diverse Skeletal Muscle Myosin Heavy Chain Isoform Proportion but Unaltered Androgen Receptor Concentration in Older Men

K. Häkkinen, W. Kraemer, M. Alen, 2009, International journal of sports medicine.

Associations of Maximal Strength and Muscular Endurance with Cardiovascular Risk Factors

K. Häkkinen, H. Kyröläinen, T. Vasankari, 2013, International Journal of Sports Medicine.

Associations of Maximal Strength and Muscular Endurance Test Scores with Cardiorespiratory Fitness and Body Composition

K. Häkkinen, H. Kyröläinen, A. Häkkinen, 2012, Journal of strength and conditioning research.

Research overview: Factors influencing trainability of muscular strength during short term and prolonged training

K. Häkkinen, 1985 .

Aerobic Fitness Does Not Modify the Effect of FTO Variation on Body Composition Traits

K. Häkkinen, H. Kyröläinen, M. Atalay, 2012, PloS one.

Muscle strength, resting muscle tone and EMG activation in untrained men: interaction effect of time of day and test order-related confounding factors.

K. Häkkinen, M. Sedliak, M. Haverinen, 2011, The Journal of sports medicine and physical fitness.

Effects of strength, endurance and combined training on muscle strength, walking speed and dynamic balance in aging men

K. Häkkinen, J. Avela, W. Kraemer, 2012, European Journal of Applied Physiology.

Cardiopulmonary loading in motocross riding

K. Häkkinen, H. Kyröläinen, T. Konttinen, 2007, Journal of sports sciences.

Increased rate of force development during periodized maximum strength and power training is highly individual

K. Häkkinen, J. Avela, A. Hackney, 2018, European Journal of Applied Physiology.

Effect of resistance training regimens on treadmill running and neuromuscular performance in recreational endurance runners

K. Häkkinen, V. Vesterinen, A. Nummela, 2011, Journal of sports sciences.

Acute leukocyte, cytokine and adipocytokine responses to maximal and hypertrophic resistance exercise bouts

K. Häkkinen, W. Kraemer, A. Mero, 2014, European Journal of Applied Physiology.

Association of military training with oxidative stress and overreaching.

K. Häkkinen, H. Kyröläinen, M. Atalay, 2011, Medicine and science in sports and exercise.

Serum Sex Hormone–Binding Globulin and Cortisol Concentrations are Associated With Overreaching During Strenuous Military Training

K. Häkkinen, H. Kyröläinen, M. Atalay, 2011, Journal of Strength and Conditioning Research.

Effects of endurance training only versus same-session combined endurance and strength training on physical performance and serum hormone concentrations in recreational endurance runners.

K. Häkkinen, K. Doma, M. Schumann, 2015, Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme.

Stength, Endurance or Combined Training Elicit Diverse Skeletal Muscle Myosin Heavy Chain Isoform Proportion but Unaltered Androgen Receptor Concentration in Older Men

K. Häkkinen, W. Kraemer, M. Alen, 2009, International journal of sports medicine.

Aerobic fitness, energy balance, and body mass index are associated with training load assessed by activity energy expenditure

K. Häkkinen, K. Westerterp, H. Kyröläinen, 2009, Scandinavian journal of medicine & science in sports.

Training-Induced Acute Neuromuscular Responses to Military Specific Test during a Six-Month Military Operation

K. Häkkinen, H. Kyröläinen, T. Finni, 2020, International journal of environmental research and public health.

Does maximal neural activation of muscle increase after resistance training?

K. Häkkinen, A. Pakarinen, M. Kallinen, 2004, European Journal of Applied Physiology and Occupational Physiology.

Fitness and lean mass increases during combined training independent of loading order.

K. Häkkinen, R. Newton, A. Häkkinen, 2014, Medicine and science in sports and exercise.

Effectiveness of a 12-month home-based exercise program on trunk muscle strength and spine function after lumbar spine fusion surgery: a randomized controlled trial

K. Häkkinen, J. Dekker, A. Häkkinen, 2020, Disability and rehabilitation.

Body composition changes by DXA, BIA and skinfolds during exercise training in women

K. Häkkinen, E. Sillanpää, A. Häkkinen, 2013, European Journal of Applied Physiology.

Active and passive recovery influence responses of luteinizing hormone and testosterone to a fatiguing strength loading

K. Häkkinen, H. Kyröläinen, B. Nindl, 2017, European Journal of Applied Physiology.

Are skeletal muscle FNDC5 gene expression and irisin release regulated by exercise and related to health?

K. Häkkinen, M. Alen, E. Pöllänen, 2013, The Journal of physiology.

Individual Endurance Training Prescription with Heart Rate Variability.

K. Häkkinen, V. Vesterinen, A. Nummela, 2016, Medicine and science in sports and exercise.

Effects of HRV-Guided vs. Predetermined Block Training on Performance, HRV and Serum Hormones

K. Häkkinen, Olli-Pekka Nuuttila, Aku Nikander, 2017, International Journal of Sports Medicine.

Effect of low-dose endurance training on heart rate variability at rest and during an incremental maximal exercise test

K. Häkkinen, H. Rusko, J. Mikkola, 2008, European Journal of Applied Physiology.

Estimation of maximal heart rate using the relationship between heart rate variability and exercise intensity in 40–67 years old men

K. Häkkinen, T. Pullinen, D. Laaksonen, 2008, European Journal of Applied Physiology.

Effects of Acute Loading Induced Fatigability, Acute Serum Hormone Responses and Training Volume to Individual Hypertrophy and Maximal Strength during 10 Weeks of Strength Training.

K. Häkkinen, J. Ahtiainen, Aapo Räntilä, 2023, Journal of sports science & medicine.

Step vs. Two-Phase Gradual Volume Reduction Tapering Protocols in Strength Training: Effects on Neuromuscular Performance and Serum Hormone Concentrations

K. Häkkinen, Seppänen Stina, 2020, Journal of strength and conditioning research.

Serum hormones in male strength athletes during intensive short term strength training

K. Häkkinen, A. Pakarinen, 2004, European Journal of Applied Physiology and Occupational Physiology.

Body composition in 18‐ to 88‐year‐old adults—comparison of multifrequency bioimpedance and dual‐energy X‐ray absorptiometry

K. Häkkinen, T. Finni, A. Pesola, 2014, Obesity.

Combined Strength and Endurance Training Improves Health-Related Quality of Life in Healthy Middle-Aged and Older Adults

K. Häkkinen, E. Sillanpää, A. Häkkinen, 2012, International Journal of Sports Medicine.