A static biomechanical load carriage model

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Authors
  1. Pelot, R.P.
  2. Rigby, A.
  3. Stevenson, J.M.
  4. Bruant, J.T.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
A two-dimensional biomechanical model of a backpack has been developed which incorporates the primary forces at the shoulder and waistbelt contact points. The model has been validated using instrumented manikins in laboratory experiments. The computer-based formulation allows the user to specify parameters for certain pack features, such as pack mass and volume, and it predicts the resulting contact forces on the bearer. By treating some parameters as decision variables, such as the location of attachment of the shoulder straps to the pack, the model can be used as an optimization tool to achieve a specified objective, such as minimizing the total forces on the bearer. A base case analysis and some variants illustrate this type of analysis. For the example provided, it is not possible to find a feasible solution within the prescribed shoulder-to-waist load ratio. By freeing up other variables, several alternative solutions are presented. This model can be used to easily examine trade-offs in certain pack design decisions.
Keywords
Load carriage;Biomechanical models;Load optimization;Ergonomics;Back (anatomy);Lumbar area;Spine (anatomy)
Report Number
DCIEM-SL-2000-134;RTO-MP-056 — Scientific Literature
Date of publication
31 Dec 2000
Number of Pages
15
DSTKIM No
CA011750
CANDIS No
516311
Format(s):
Hardcopy;Document Image stored on Optical Disk

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