Association of prospective lower extremity musculoskeletal injury and musculoskeletal, balance, and physiological characteristics in Special Operations Forces

Autor: Mita Lovalekar, Michael Caviston, Karen A. Keenan, Katherine A. Perlsweig, Thomas M. Baldwin, Bradley C. Nindl, Meleesa F. Wohleber, Kim Beals, Chris Connaboy
Rok vydání: 2017
Předmět:
Adult
Male
medicine.medical_specialty
Anaerobic Threshold
0211 other engineering and technologies
Physical Therapy
Sports Therapy and Rehabilitation
02 engineering and technology
Physical strength
Cohort Studies
03 medical and health sciences
Young Adult
0302 clinical medicine
Physical medicine and rehabilitation
Risk Factors
medicine
Humans
Orthopedics and Sports Medicine
Muscle Strength
Dynamic balance
Pliability
Musculoskeletal System
Postural Balance
Balance (ability)
021110 strategic
defence & security studies
Chi-Square Distribution
business.industry
030229 sport sciences
medicine.disease
Occupational Injuries
United States
medicine.anatomical_structure
Military Personnel
Lower Extremity
Musculoskeletal injury
Physical therapy
Body Composition
Ankle
business
Anaerobic exercise
Hamstring
Ankle Joint
Cohort study
Zdroj: Journal of science and medicine in sport. 20
ISSN: 1878-1861
Popis: Objectives Previous research has examined lower extremity (LE) musculoskeletal injury (MSI) patterns and risk factors in Special Operations Forces (SOF) trainees, conventional military personnel, and athletes; however, it is unclear if SOF have the same patterns/risk factors. This study aimed to determine the association of musculoskeletal, balance, and physiological characteristics with LE MSI in SOF. Design Cohort study. Methods A total of 726 Air Force (N = 140), Navy Sea, Air, and Land (N = 301), and Special Warfare Combatant Crewmen (N = 285) SOF (age = 25.72 ± 4.77 years, height = 178.34 ± 6.63 cm, weight = 84.28 ± 9.03 kg) participated in laboratory testing, including: LE muscular strength and flexibility; balance; body composition; anaerobic power/capacity; and aerobic capacity. Medical charts were reviewed for LE MSI 365 days following laboratory testing. Participants were assigned by injury status and laboratory data stratified by tertile. Chi-square statistics were calculated to determine the frequency of LE MSI across tertiles for each characteristic. Results There was a significant association between LE MSI and: ankle inversion strength (weaker side: Χ(2) = 17.703; stronger side: Χ(2) = 18.911; p ≤ 0.001); ankle eversion/inversion strength ratio (lower side: Χ(2) = 13.456; higher side: Χ(2) = 16.885; p ≤ 0.001); hamstring flexibility (less flexible: Χ(2) = 19.930; more flexible Χ(2) = 15.185; p ≤ 0.001); gastrocnemius-soleus flexibility (less flexible: Χ(2) = 7.889, p = 0.019); dynamic balance asymmetry (Χ(2) = 7.444, p = 0.024); Vestibular and Preference ratios (Χ(2) = 9.124, p = 0.010 and Χ(2) = 6.572, p = 0.037, respectively); and aerobic capacity (Χ(2) = 13.935, p = 0.001). Conclusions Characteristics associated with LE MSI are unique in SOF. Human performance program initiatives should include efforts to optimize ankle strength and flexibility, maintain moderate hamstring flexibility, expand dynamic balance strategies, and maximize aerobic capacity to reduce LE MSI risk.
Databáze: OpenAIRE
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