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Gender differences in lower extremity coupling variability during an unanticipated cutting maneuver.

Christine D Pollard1, Bryan C Heiderscheit, Richard E A van Emmerik

  • 1Dept. of Exercise Science, Univ. of Massachusetts, Amherst, MA 01003, USA.

Journal of Applied Biomechanics
|August 6, 2005
PubMed
Summary

Women exhibit less variable lower extremity (LE) coordination during cutting maneuvers, potentially increasing ACL injury risk. This reduced coordination variability in female athletes may hinder adaptation to sports-related impacts.

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Area of Science:

  • Biomechanics
  • Sports Medicine
  • Orthopedics

Background:

  • Anterior Cruciate Ligament (ACL) injuries are more prevalent in female athletes.
  • Understanding lower extremity (LE) movement patterns is crucial for injury prevention.

Purpose of the Study:

  • To investigate gender-specific differences in LE joint coupling variability during unanticipated cutting.
  • To explore the relationship between coordination variability and ACL injury risk in female athletes.

Main Methods:

  • 3-D kinematic analysis of 24 college soccer players (12 male, 12 female) performing a cutting maneuver.
  • Vector-coding technique applied to angle-angle plots to quantify intralimb coupling coordination.
  • Between-trial standard deviation of coordination patterns during stance phase used to measure variability.

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Main Results:

  • Female athletes demonstrated significantly reduced coordination variability in four key LE couplings compared to males.
  • Specific reductions included thigh rotation/leg rotation (32%), thigh abduction-adduction/leg abduction-adduction (40%), and knee flexion-extension/knee rotation (46%).
  • Reduced variability in knee flexion-extension/hip rotation was also observed (44%) in females.

Conclusions:

  • Gender differences in LE coordination variability exist during cutting maneuvers.
  • Less flexible coordination patterns in women may impair their ability to adapt to dynamic sports environments.
  • This reduced adaptability could contribute to the higher incidence of ACL injuries observed in female athletes.