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Related Experiment Video

Updated: Apr 30, 2026

Using Gold-standard Gait Analysis Methods to Assess Experience Effects on Lower-limb Mechanics During Moderate High-heeled Jogging and Running
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Effect of explicit visual feedback distortion on human gait.

Seung-Jae Kim1, Dieudonne Mugisha

  • 1Department of Biomedical Engineering, California Baptist University, 8432 Magnolia Avenue, Riverside, CA 92504, USA. sjkim@calbaptist.edu.

Journal of Neuroengineering and Rehabilitation
|April 30, 2014
PubMed
Summary

Visual feedback distortion influences gait patterns, even when subjects are aware of the manipulation. This suggests visual feedback can be a tool for gait rehabilitation by driving implicit motor functions.

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Area of Science:

  • Biomechanics
  • Neurorehabilitation
  • Human motor control

Background:

  • Gait rehabilitation often involves correcting stepping movements using visual feedback.
  • Previous research showed implicit visual feedback distortion of step length unintentionally modulates gait patterns.
  • This study investigates explicit visual feedback distortion's effect on gait symmetry.

Purpose of the Study:

  • To determine if explicit visual feedback distortion influences gait spatial patterns.
  • To compare the effects of explicit versus implicit visual feedback distortion on gait.

Main Methods:

  • Nine healthy subjects walked on a treadmill with on-line visual feedback of step length.
  • Visual feedback was distorted to appear asymmetric, with one step length bar manipulated.
  • Actual step lengths were measured to analyze gait modulation effects.

Main Results:

  • Gradual visual feedback distortion systematically modulated gait step length away from symmetry.
  • The amount of gait modulation was reduced in the explicit condition (subjects aware) compared to the implicit condition.

Conclusions:

  • Perturbation of visual movement information can cause unintentional motor function changes.
  • Visual feedback distortion can be a spontaneous mechanism influencing gait.
  • Gait training with visual distortion may enhance rehabilitation by leveraging implicit motor functions.