Integrated patrol pack & rucksack development phase IIIB: Performance testing of suspension components


  1. Whiteside, R.A.
  2. Doan, J.B.
  3. Reid, S.A.
  4. Bryant, J.T.
  5. Stevenson, J.M.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN);Queen's Univ, Kingston ONT (CAN) Ergonomics Research Group
The relationship between large compressive loads applied to the surface of human skin and resulting tissue trauma such as inflammation (Kosiak, 1961), pressure sores (Scales, 1990) and nerve lesions (Mello et al., 1988; Brown, 1990) is well documented. Holwijn (1990) recognized the importance of contact pressure mangitude and duration as contributing factors to the inflammation response of the skin and underlying tissue while using a personal Load Carriage System (LCS). Currently, there is no consensus regarding acceptable safe limits for average skin contact pressure at the shoulder, lower back, or hip. Based on recent work by Stevenson et al, (1995), contact pressure of 20 kPa is recommended as a threshold limit value for typical load carriage applications. The purpose of this study was to compare and evaluate the anterior shoulder and axilla pressure distributions for three prototype shoulder strap designs, and the lower lumbar and iliac region pressure distributions under three waist belt designs, during simulated standard marching trials. Peak and average pressures were used to compare the prototype shoulder straps and waist belts. Pressure distributions were examined to identify the location of design features that created peak pressures. Several design characteristics were identified and evaluated based on these crtieria. TRUNCATED
Load carriage;Ergonomics;Rucksacks;Load optimization;Back (anatomy);Iliac crest;Lumbar area;Spine (anatomy)
Report Number
DCIEM-CR-2001-087 — Contract Report
Date of publication
01 Aug 1999
Number of Pages
Hardcopy;Document Image stored on Optical Disk

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