Effect of Non-Dominant Resistance Training for Unilateral Athletes on Physical Balance and Isokinetic Muscular Function

OBJECTIVES This study aimed investigates the effect of non-dominant resistance training on physical imbalance, and muscular function in unilateral athletes (badminton, tennis). METHODS Fifteen male unilateral sports plyer were randomly divided into non-dominant resistance training group (NRTG, n=8) and control group (CG, n=7). Exercise program performed for 60 min(warm-up 10 min, main exercise 40 min, cool down 10 min), three times a weeks. The isokinetic muscular function of knee and shoulder joint was measured pre (0 week) and post (8 weeks). RESULTS There was a significant different in isokinetic muscular function dominant and non-dominant (p<.05). Non-dominant resistance training program was effective in isokinetic muscular function (peak torque %BW, Total work %BW) in posttest than in pre-test (p<.05). And, was effective in improving shoulder joint isokinetic muscular function 600/sec, peak torque %BW (extension, flexion) in posttest than in pre-test (p<.05). In addition, knee isokinetic muscular function 1800/sec total work %BW (extension) the interaction effect was showed, and was effective 2400/sec total work %BW (flexor) (p<.05). CONCLUSIONS Non-dominant resistance training reduced right and left imbalances and improved isokinetic muscular function in unilateral athletes.

[1]  S. Eunsook,et al.  Comparison of Fitness levels based on gender and single and double national badminton player candidate , 2016 .

[2]  J. Sandhu,et al.  Effect of a 6 Week Plyometric Training Program on Agility, Vertical Jump Height and Peak Torque Ratio of Indian Taekwondo Players , 2015 .

[3]  Kijin Kim,et al.  Effects of 8 Weeks Pilates for the Body Balance, Posture and Pain in Players of Tennis, Archery, and Athletics , 2012 .

[4]  A. Saeterbakken,et al.  Muscle activity of the core during bilateral, unilateral, seated and standing resistance exercise , 2012, European Journal of Applied Physiology.

[5]  A. Cornwell,et al.  Relevance of hand dominance to the bilateral deficit phenomenon , 2012, European Journal of Applied Physiology.

[6]  K. Hannan.  Ergonomics for Therapists , 2010 .

[7]  Gregor Kuntze,et al.  A biomechanical analysis of common lunge tasks in badminton , 2010, Journal of sports sciences.

[8]  Christophe Cornu,et al.  Agonist muscle activity and antagonist muscle co-activity levels during standardized isotonic and isokinetic knee extensions. , 2009, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

[9]  Sung-Tae Park,et al.  Effects of bilateral and unilateral resistance training on bilateral deficit of muscle strength in lower limbs , 2008 .

[10]  E. Rampinini,et al.  Reliability of isokinetic strength imbalance ratios measured using the Cybex NORM dynamometer , 2008, Clinical physiology and functional imaging.

[11]  A. Nevill,et al.  Why self-report “Likert” scale data should not be log-transformed , 2007, Journal of sports sciences.

[12]  T. Housh,et al.  NEUROMUSCULAR RESPONSES TO THREE DAYS OF VELOCITY‐SPECIFIC ISOKINETIC TRAINING , 2006, Journal of strength and conditioning research.

[13]  David G. Behm,et al.  TRUNK MUSCLE ELECTROMYOGRAPHIC ACTIVITY WITH UNSTABLE AND UNILATERAL EXERCISES , 2005, Journal of strength and conditioning research.

[14]  A. Thorstensson,et al.  Hamstring injury occurrence in elite soccer players after preseason strength training with eccentric overload , 2003, Scandinavian journal of medicine & science in sports.

[15]  V. Kalapotharakos,et al.  The Effects of Strength Training, Cardiovascular Training and Their Combination on Flexibility of Inactive Older Adults , 2002, International journal of sports medicine.

[16]  E B Simonsen,et al.  A New Concept For Isokinetic Hamstring: Quadriceps Muscle Strength Ratio , 1998, The American journal of sports medicine.

[17]  강근영.  The Effect of Circuit Weight Training on the Improvement of Isokinetic muscula, Cardiorepiratory Function and Blood Components on Canoe athletes , 2016 .

[18]  Byun Yong Hyun,et al.  Comparison on Physical Fitness and Isokinetic Strength in University Badminton Players and Club Students , 2014 .

[19]  Park Sung-tae.  Effects of Bilateral and Unilateral Resistance Training Using Elastic Band on Functional Fitness and Fall Efficacy in Elderly Women , 2013 .

[20]  박찬길.  The Study of Low Back Pain Self-awareness Scale and Spinal Lateral Deformity between Unilateral Exercise Athletics in Adolescents. , 2010 .

[21]  Kim Won Bae,et al.  Analytic Hierarchy Process to examine factors influencing sports performance , 2006 .

[22]  이광식,et al.  The Affects of Unilateral Muscular Training for the Record Improvement in swimming , 2005 .

[23]  J. Croisier.  MUSCULAR IMBALANCE AND ACUTE LOWER EXTREMITY MUSCLE INJURIES IN SPORT , 2004 .

[24]  R. Enoka,et al.  Maximum bilateral contractions are modified by neurally mediated interlimb effects. , 1991, Journal of applied physiology.

[25]  D G Sale,et al.  Comparison of motor unit activation during unilateral and bilateral leg extension. , 1984, Journal of applied physiology: respiratory, environmental and exercise physiology.