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Updated: May 24, 2026

A Training Program Using an Agility Ladder for Community-Dwelling Older Adults
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A functional agility short-term fatigue protocol changes lower extremity mechanics.

Nelson Cortes1, David Quammen, Shawn Lucci

  • 1George Mason University, United States. ncortes@gmu.edu

Journal of Sports Sciences
|March 20, 2012
PubMed
Summary
This summary is machine-generated.

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Functional agility fatigue alters lower extremity biomechanics in female collegiate soccer players during landing tasks. Proper mechanics are crucial to mitigate fatigue effects on knee and hip movement.

Area of Science:

  • Sports Medicine
  • Biomechanics
  • Exercise Physiology

Background:

  • Fatigue is a significant factor influencing athletic performance and injury risk.
  • Understanding how fatigue affects lower extremity biomechanics is crucial for injury prevention in soccer players.

Purpose of the Study:

  • To investigate the impact of a functional agility fatigue protocol on lower extremity biomechanics.
  • To compare biomechanical changes during stop-jump and sidestep tasks post-fatigue.

Main Methods:

  • Fifteen female collegiate soccer athletes performed stop-jump and sidestep tasks before and after a functional agility fatigue protocol.
  • Lower extremity kinematic and kinetic data were collected pre- and post-fatigue.
  • Repeated measures analyses of variance were used to analyze the data.

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Effects of a Novel Neuromuscular Training Intervention on Jump, Sprint, and Change of Direction in Adult Female Soccer Players
10:08

Effects of a Novel Neuromuscular Training Intervention on Jump, Sprint, and Change of Direction in Adult Female Soccer Players

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Main Results:

  • Post-fatigue, athletes exhibited increased knee internal rotation and decreased knee flexion.
  • Hip flexion angle also decreased significantly post-fatigue.
  • These changes indicate altered lower extremity mechanics due to fatigue.

Conclusions:

  • A short functional fatigue protocol significantly impacts lower extremity biomechanics in collegiate soccer athletes.
  • Emphasis on proper landing mechanics from the outset of training may help reduce fatigue-related alterations.