Research and development of an advanced personal load carriage system phases II and III. Section D: Development of acceptance criteria for physical tests of load carriage systems


  1. Bryant, T.
  2. Stevenson, J.
  3. Reid, S.
  4. Doan, J.
  5. Rigby, A.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN);Queen's Univ, Kingston ONT (CAN) Ergonomics Research Group
Standardized physical testing of load carriage systems allows for comparison for comparison between load carriage simulator measures, stiffness measures, and human performance measures from field trials. The objectives of this project section were to develop benchmark criteria from a pool of pack measures, and to use the correlation between human and simulator measures to establish threshold limit values (TLVs) for bearer safety. A Pearson correlation matrix with 76 total variables (39 LC simulator variables, 37 stiffness and field testing variables) was developed with a significance level of p=.05 for all correlation values r=>0.67. Results showed 11 displacement/force LC simulator variables and 10 pressure/stiffness variables significantly correlated with human factors measurements. Of note, pack displacement was strongly correlated with posterior hip discomfort, indication excess loading of the hip belt. Force and moment averages and amplitudes were correlated with mobility and comfort. Most notable was the high correlation between vertical force amplitude and overall pack ratings in the human trials. Pressure measurements were also significantly correlated with subject discomfort scores, while stiffness about all three axes was associated with mobility and function in human trials. TRUNCATED
Advanced Personal Load Carriage System (APLCS);Load carriage;Rucksacks;Ergonomics;Biomechanical models;Load optimization
Report Number
DCIEM-CR-2001-081 — Contract Report
Date of publication
30 Oct 1997
Number of Pages
Hardcopy;Document Image stored on Optical Disk

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