Is angular momentum in the horizontal plane during gait a controlled variable?

V. Thielemans, P. Meyns, S.M. Bruijn

    Research output: Contribution to JournalArticleAcademicpeer-review

    Abstract

    It has been suggested that angular momentum in the horizontal plane during human gait is controlled (i.e., kept minimal). However, this has not been explored in conditions when angular momentum of different segments is manipulated explicitly. In order to examine the behavior of angular momentum, 12 participants walked in 17 conditions in which angular momentum of either the arms or legs was manipulated. Subjects walked at different step lengths, different speeds and with an additional weight on either the wrist or ankle. Angular momentum of total body, arms and legs was calculated from gait kinematics. Increasing step length increased total body and leg angular momentum. When weight was added to the limbs, arm and leg angular momentum were affected and counteracted each other, so that total body angular momentum did not change. Moreover, increasing walking speed increased arm, leg and total body angular momentum. Thus, it may be concluded that if angular momentum is controlled (which only seems to be the case for conditions when weights are added), it is not strictly controlled in all gait conditions (as it may increase by walking faster/with larger steps). © 2014 Elsevier B.V.
    Original languageEnglish
    Pages (from-to)205-216
    JournalHuman Movement Science
    Volume34
    DOIs
    Publication statusPublished - 2014

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