Dynamic analysis of load carriage biomechanics during level walking

L Ren, R K Jones, D Howard

    Research output: Contribution to journalArticlepeer-review

    66 Citations (Scopus)

    Abstract

    This paper describes an investigation into the biomechanical effects of load carriage dynamics on human locomotion performance. A whole body, inverse dynamics gait model has been developed which uses only kinematic input data to define the gait cycle. To provide input data, three-dimensional gait measurements have been conducted to capture whole body motion while carrying a backpack. A nonlinear suspension model is employed to describe the backpack dynamics. The model parameters for a particular backpack system-can be identified using a dynamic load carriage test-rig. Biomechanical assessments have been conducted based on combined gait and pack simulations. It was found that the backpack suspension stiffness and damping have little effect on human locomotion energetics. However, decreasing suspension stiffness offers important biomechanical advantages. The peak values of vertical pack force, acting on the trunk, and lower limb joint loads are all moderated. This would reduce shoulder strap pressures and the risk of injury when heavy loads are carried. (c) 2004 Elsevier Ltd. All rights reserved
    Original languageEnglish
    Pages (from-to)853 - 863
    Number of pages11
    JournalJournal of Biomechanics
    Volume38
    Issue number4
    DOIs
    Publication statusPublished - Apr 2005

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