Accession Number : ADA311057

Title :   A Physiological and Biomechanical Evaluation of Commercial Load-Bearing Ensembles for the U.S. Marine Corps.

Descriptive Note : Final rept. Jan 95-Jan 96,

Corporate Author : NAVAL HEALTH RESEARCH CENTER SAN DIEGO CA

Personal Author(s) : Roberts, Donald E. ; Reading, James E. ; Daley, Janine L. ; Hodgdon, James A. ; Pozos, Robert S.

PDF Url : ADA311057

Report Date : 14 MAY 1996

Pagination or Media Count : 49

Abstract : The purpose of this study was to evaluate 13 commercial load-bearing ensembles (LBE) in relation to the ALICE pack to determine the best load-to-individual interface for use by the U.S. Marine Corps. Each LBE was evaluated biomechanically (gait and electromyographically), physiologically (heart rate and oxygen uptake), and subjectively (perceived exertion and LBE preference). Subjects (n = 14) carried 100 lbs for 4 hr (50/10 walk/rest) at 2.5 mph and 2% grade. Physiological parameters increased over time but were not pack specific. Subjects rated the internal-frame design as superior. Internal-flame designs shifted the weight from the back muscles to leg muscles more than external-frame designs. The forward trunk lean was not pack specific at this weight. An internal-frame design (center-of-mass close to body) incorporating adjustments for fit (torso length) and load stabilization while carrying warfighting supplies (replace load-carriage vest) would be the optimal choice for a new LBE for the U.S. Marine Corps.

Descriptors :   *TEST AND EVALUATION, *PROTECTIVE EQUIPMENT, *OXYGEN CONSUMPTION, *VESTS, *BACKPACKS, STABILIZATION, CENTER OF GRAVITY, MARINE CORPS, OPTIMIZATION, COMMERCE, PARAMETERS, LOADS(FORCES), LENGTH, PHYSIOLOGICAL EFFECTS, PHYSIOLOGY, HUMAN BODY, MUSCLES, HEART RATE, BIOMECHANICS, ELECTROMYOGRAPHY.

Subject Categories : Test Facilities, Equipment and Methods
      Logistics, Military Facilities and Supplies
      Protective Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE