Knee joint kinetics during reactive recovery: Effects of localized muscle fatigue

Prakriti Parijat, Thurmon E. Lockhart, Jian Liu

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

Abstract

The purpose of this study was to investigate the effects of localized muscle fatigue on the knee joint kinetics during reactive recovery efforts from a slip perturbation. Sixteen healthy young participants were recruited to walk across an unexpected slippery vinyl floor surface in two different sessions (Fatigue and No fatigue). Kinematic and kinetic data were collected using a three-dimensional video analysis system and force plates during both sessions. An inverse dynamic model was developed to assess joint moment and joint power of the knees during reactive recovery period of slip-induced falls. The results demonstrated an increase in the peak knee joint moment and peak knee joint power generation in the fatigue slip trials. There were four reported falls in the fatigue session. The study concluded that localized muscle fatigue adversely affects the knee joint kinetics and can be considered a risk factor for slip induced falls. These findings provide new insights to the biomechanical relationship between knee kinetics and localized muscle fatigue.

Original languageEnglish (US)
Title of host publication52nd Human Factors and Ergonomics Society Annual Meeting, HFES 2008
Pages1078-1082
Number of pages5
StatePublished - Dec 1 2008
Externally publishedYes
Event52nd Human Factors and Ergonomics Society Annual Meeting, HFES 2008 - New York, NY, United States
Duration: Sep 22 2008Sep 26 2008

Publication series

NameProceedings of the Human Factors and Ergonomics Society
Volume2
ISSN (Print)1071-1813

Other

Other52nd Human Factors and Ergonomics Society Annual Meeting, HFES 2008
CountryUnited States
CityNew York, NY
Period9/22/089/26/08

ASJC Scopus subject areas

  • Human Factors and Ergonomics

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  • Cite this

    Parijat, P., Lockhart, T. E., & Liu, J. (2008). Knee joint kinetics during reactive recovery: Effects of localized muscle fatigue. In 52nd Human Factors and Ergonomics Society Annual Meeting, HFES 2008 (pp. 1078-1082). (Proceedings of the Human Factors and Ergonomics Society; Vol. 2).