Factors affecting knee flexion during the swing phase of gait

Stephen Jacob Piazza, Scott L. Delp

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A three-degree-of-freedom sagittal plane musculoskeletal model of the human lower extremity has been developed to simulate the swing phase of normal gait. Values for the joint angles and angular velocities at toe-off and the excitation input to the model's muscles were derived from experimental measurements. The normal swing phase simulation produced joint angles, joint moments, and heel and toe trajectories that corresponded to experimental results. Simulations were run with altered initial joint angular velocities and applied joint moments to determine the effects of each upon peak knee flexion and knee angular acceleration. It was found that knee flexion during the swing phase is caused primarily by a large initial knee flexion velocity at toe-off which is tempered by a knee extension acceleration that is chiefly caused by muscular action.

Original languageEnglish (US)
Title of host publicationAdvances in Bioengineering
PublisherASME
Pages113-114
Number of pages2
Volume28
StatePublished - 1994
EventProceedings of the 1994 International Mechanical Engineering Congress and Exposition - Chicago, IL, USA
Duration: Nov 6 1994Nov 11 1994

Other

OtherProceedings of the 1994 International Mechanical Engineering Congress and Exposition
CityChicago, IL, USA
Period11/6/9411/11/94

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Piazza, S. J., & Delp, S. L. (1994). Factors affecting knee flexion during the swing phase of gait. In Advances in Bioengineering (Vol. 28, pp. 113-114). ASME.