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Related Experiment Video

Updated: Feb 7, 2026

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Step-Down Task Identifies Differences in Ankle Biomechanics Across Functional Activities.

Luke Donovan1, Tyler M Miklovic2, Mark A Feger2

  • 1Kinesiology, University of North Carolina at Charlotte, Charlotte, United States.

International Journal of Sports Medicine
|July 20, 2018
PubMed
Summary
This summary is machine-generated.

A new clinical screening method can identify individuals with excessive ankle inversion during landing. This "lateral" landing pattern, characterized by increased inversion, was observed across walking, step-down, and jump-landing tasks.

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Area of Science:

  • Biomechanics
  • Orthopedics
  • Sports Medicine

Background:

  • Clinical assessment of ankle frontal plane kinematics is lacking.
  • Understanding landing mechanics is crucial for injury prevention.

Purpose of the Study:

  • To determine if
  • lateral
  • landing during a step-down task correlates with increased ankle inversion during walking, step-down, and jump-landing.
  • To assess the validity of a clinical screening tool for identifying individuals with altered ankle kinematics.

Main Methods:

  • Fifty-seven adults performed walking, step-down, and jump-landing tasks.
  • Three-dimensional motion capture quantified ankle frontal plane kinematics.
  • A blinded investigator classified participants as
  • lateral
  • or
  • non-lateral
  • landing based on video analysis of the step-down task.

Main Results:

  • The
  • lateral
  • landing group exhibited significantly greater ankle inversion during all tested tasks compared to the
  • non-lateral
  • group.
  • Significant differences in inversion were noted at initial contact and other task-specific phases.

Conclusions:

  • A simple clinical screening tool can effectively identify individuals with increased ankle inversion during dynamic movements.
  • This finding has implications for developing targeted interventions to reduce injury risk associated with abnormal landing mechanics.