Functional physical training improves women's military occupational performance.

The U.S. Armed Forces have recently approved full integration of women into combat roles. Physical fitness demands for executing Military Occupational Specialties (MOS) are substantial; thus lifting and load carriage capability improvements are desirable. OBJECTIVES To determine if a specially-designed physical conditioning program could lessen the gap between the performance of male and female Soldiers in lifting and load carriage and thereby enable women to meet the requirements of most, if not all, Army MOSs. METHODS Forty women participated in a 24-week physical training program, which included resistance training, long-distance running, backpacking, and specialized drills. Pre- and post-tests of occupational and physical performance measures were conducted before and after training. Repeated measures analysis of variance were used to determine statistically significant differences among the pre-, mid- and posttests. RESULTS Women increased maximal occupational lifting strength 12-20 kg, added 9-34 repetitions in lifting endurance, increased 0.23 m in jumping performance, added 46 repetitions in local muscular endurance, and decreased load carriage for time by 3.7-8.6 min. Women scored within 82-94% of untrained male scores for aerobic capacity and muscular endurance after training. CONCLUSION Women's ability to perform physically-demanding military occupational tasks was significantly improved following 6 months of concurrent training, with emphasis on load carriage and lifting. The percentage of women that qualified for current "heavy" and "very heavy" MOSs was initially 24%, but increased to 78% after training. A resistance training program of 6+ months can adequately prepare women for "heavy" to "very heavy" MOS's.

[1]  T. Judge,et al.  Relationship of core self-evaluations traits--self-esteem, generalized self-efficacy, locus of control, and emotional stability--with job satisfaction and job performance: a meta-analysis. , 2001, The Journal of applied psychology.

[2]  G. Hunter Research: Changes in body composition, body build and performance associated with different weight training frequencies in males and females , 1985 .

[3]  Barry A. Spiering,et al.  Physiological Employment Standards III: physiological challenges and consequences encountered during international military deployments , 2013, European Journal of Applied Physiology.

[4]  A. Yarnell,et al.  Women in Combat: Summary of Findings and a Way Ahead. , 2016, Military medicine.

[6]  M A Sharp,et al.  Physical fitness and occupational performance of women in the u.s. Army. , 1994, Work.

[7]  Ilyssa E. Hollander,et al.  Physical Demands of Army Military Occupational Specialties: Constructing and Applying a Crosswalk to Evaluate the Relationship between Occupational Physical Demands and Hospitalizations , 2008 .

[8]  Bradley C Nindl,et al.  Executive Summary From the National Strength and Conditioning Association's Second Blue Ribbon Panel on Military Physical Readiness: Military Physical Performance Testing. , 2015, Journal of strength and conditioning research.

[9]  R B Mazess,et al.  Dual-energy x-ray absorptiometry for total-body and regional bone-mineral and soft-tissue composition. , 1990, The American journal of clinical nutrition.

[10]  K. Häkkinen,et al.  Effects of concurrent resistance and aerobic training on load-bearing performance and the Army physical fitness test. , 2004, Military medicine.

[11]  W. Kraemer,et al.  Regional body composition changes in women after 6 months of periodized physical training. , 2000, Journal of applied physiology.

[12]  Peter N. Frykman,et al.  Effects of a Specifically Designed Physical Conditioning Program on the Load Carriage and Lifting Performance of Female Soldiers. , 1997 .

[13]  W J Kraemer,et al.  Effect of resistance training on women's strength/power and occupational performances. , 2001, Medicine and science in sports and exercise.

[14]  Jace R. Drain,et al.  The Effectiveness of Basic Military Training To Improve Functional Lifting Strength in New Recruits , 2015, Journal of strength and conditioning research.

[15]  Chockalingam Viswesvaran,et al.  Perspectives on Models of Job Performance , 2000 .

[16]  K. Häkkinen,et al.  Acute Endocrine and Force Responses and Long-Term Adaptations to Same-Session Combined Strength and Endurance Training in Women , 2016, Journal of strength and conditioning research.

[17]  M. A. Collins,et al.  Muscle hypertrophy in men and women. , 1988, Medicine and science in sports and exercise.

[18]  W. Kraemer,et al.  Operational Physical Performance and Fitness in Military Women: Physiological, Musculoskeletal Injury, and Optimized Physical Training Considerations for Successfully Integrating Women Into Combat-Centric Military Occupations. , 2016, Military medicine.

[19]  J. Knapik,et al.  Soldier load carriage: historical, physiological, biomechanical, and medical aspects. , 2004, Military medicine.

[20]  R. Hagan,et al.  A comparison of combined running and weight training with circuit weight training. , 1982, Medicine and science in sports and exercise.

[21]  H. Kyröläinen,et al.  Optimal Physical Training During Military Basic Training Period. , 2015, Journal of strength and conditioning research.

[22]  Samuel N. Cheuvront,et al.  Human Performance Optimization Metrics: Consensus Findings, Gaps, and Recommendations for Future Research , 2015, Journal of strength and conditioning research.

[23]  J J Knapik,et al.  The influence of physical fitness training on the manual material handling capability of women. , 1997, Applied ergonomics.

[24]  T. Judge,et al.  The Power of Being Positive: The Relation Between Positive Self-Concept and job Performance , 1998 .

[25]  H. Kyröläinen,et al.  Effects of Added Resistance Training on Physical Fitness, Body Composition, and Serum Hormone Concentrations During Eight Weeks of Special Military Training Period , 2015, Journal of strength and conditioning research.

[26]  K. Häkkinen,et al.  Perspectives on Aerobic and Strength Influences on Military Physical Readiness: Report of an International Military Physiology Roundtable. , 2015, Journal of strength and conditioning research.

[27]  B. Nindl Physical Training Strategies for Military Women's Performance Optimization in Combat-Centric Occupations. , 2015, Journal of strength and conditioning research.

[28]  Timothy C Sell,et al.  Musculoskeletal, biomechanical, and physiological gender differences in the US military. , 2015, U.S. Army Medical Department journal.

[29]  Barry A. Spiering,et al.  Combined resistance and endurance training improves physical capacity and performance on tactical occupational tasks , 2010, European Journal of Applied Physiology.

[30]  J. Greeves Physiological Implications, Performance Assessment and Risk Mitigation Strategies of Women in Combat-Centric Occupations , 2015, Journal of strength and conditioning research.

[31]  J. Sampson,et al.  How Effective Is Initial Military-Specific Training in the Development of Physical Performance of Soldiers? , 2015, Journal of strength and conditioning research.