The effect of quadriceps femoris, hamstring, and placebo eccentric fatigue on knee and ankle dynamics during crossover cutting

John A. Nyland, Robert Shapiro, David N.M. Caborn, Art J. Nitz, Terry R. Malone

Research output: Contribution to journalArticlepeer-review

76 Scopus citations

Abstract

This study attempted to determine the effect of eccentric quadriceps femoris, hamstring, and placebo fatigue on stance limb dynamics during the plant-and-cut phase of a crossover cut. Twenty female college students (task trained) were tested. Hamstring fatigue resulted in decreased peak impact knee flexion moments (p ≤.01), increased internal tibial rotation at peak knee flexion (p ≤ .05), and decreased peak ankle dorisflexion (p ≤ .05). Quadriceps fatigue resulted in increased peak ankle dorsiflexion moments (p < .01), decreased peak posterior braking forces (p ≤ .01), decreased peak knee extension moments (p ≤ .01), delayed peak knee flexion (p ≤ .01), delayed peak propulsive forces (p < .01), and delayed subtalar peak inversion moments (p ≤ .05). Fatigue of either muscle group produced earlier peak ankle plantar flexion moments (p ≤ .05) and decreased peak propulsive knee flexion moments (p ≤ .05). Variables requiring further study (p ≤ .1) provide discussion data. Soleus, gastrocnemius, tibialis anterior, and deep posterior compartment calf muscles serve as dynamic impact force attenuators, compensating for fatigued proximal muscles.

Original languageEnglish
Pages (from-to)171-184
Number of pages14
JournalJournal of Orthopaedic and Sports Physical Therapy
Volume25
Issue number3
DOIs
StatePublished - Mar 1997

Bibliographical note

Funding Information:
We acknowledge C Anders Olson, Laith Q Al-Mawsawi, Arthur Young Travis Chapa and Jamie Lloyd-Smith for their discussion and suggestions. We thank, Laith Q Al-Mawsawi and C Anders Olson for their comments and editing on the manuscript. This work was supported by the following grants: National Institute of Health CA183615 , AI110261 and Margaret E. Early Medical Research Trust . H.Q. was supported by the Interdisciplinary Training Grant in Virology and Gene Therapy from National Institute of Health ( 5T32AI060567 ). N.C.W. was supported by UCLA Dissertation Year Fellowship and Audree Fowler Fellowship in Protein Science.

Keywords

  • Compensatory dynamics
  • Fatigue
  • Muscle
  • Women

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation

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