These are links to papers, studies and reports regarding ergonomic and musculoskeletal injuries specifically geared towards Soldier musculoskeletal injuries and the military lifestyle.
Incidence and Risk Factors for Acute Low Back Pain in Active Duty Infantry (2012). Military Medicine, 177, 11:1348
Physical Fitness, Age, and Injury
Incidence in Infantry Soldiers (1993). Occupational Medicine Division, US Army Research Institute of Environmental Medicine, Natick, MA
The Changing Face of Disability in the US Army: The Operation Enduring Freedom and Operation Iraqi Freedom Effect (2012). The American Academy of Orthopedic Surgeons, V.20, (suppl 1):523-530
Non-battle injuries result in more medical evacuations than combat (2015). Veronique Hauschild, Injury Prevention Program, Army Public Health Center. "...the primary health threat to troops for more than two decades has been common muscle, joint, tendon/ligament and bone injuries like knee or back pain that are caused by running, sports and exercise-related activities such as basketball and weightlifting."