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Related Experiment Video

Updated: May 19, 2026

Using a Split-belt Treadmill to Evaluate Generalization of Human Locomotor Adaptation
08:04

Using a Split-belt Treadmill to Evaluate Generalization of Human Locomotor Adaptation

Published on: August 23, 2017

Split-second decisions on a split belt: does simulated limping affect obstacle avoidance?

Jacques Duysens1, Zrinka Potocanac, Judith Hegeman

  • 1Department of Kinesiology, KU Leuven, Tervuursevest 101-Bus 01500, 3001, Heverlee, Belgium. jacques.duysens@faber.kuleuven.be

Experimental Brain Research
|September 4, 2012
PubMed
Summary
This summary is machine-generated.

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Simulated limping significantly increases obstacle avoidance failures. This is due to increased reliance on the short-step strategy (SSS) when facing obstacles during asymmetrical walking.

Area of Science:

  • Biomechanics
  • Human Gait Analysis
  • Motor Control

Background:

  • Obstacle avoidance during gait typically involves a long-step strategy (LSS) or short-step strategy (SSS).
  • Limping alters gait parameters, potentially impacting obstacle avoidance capabilities.

Purpose of the Study:

  • To investigate how simulated limping affects obstacle avoidance strategies and success rates.
  • To determine if altered swing phase duration in limping influences obstacle negotiation.

Main Methods:

  • Subjects walked on a split-belt treadmill, creating asymmetrical gait speeds (2:2 to 2:8 km/h).
  • Obstacle avoidance (OA) tasks were performed on the slower leg during asymmetrical walking.
  • Gait strategies (LSS vs. SSS) and failure rates were recorded.

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Last Updated: May 19, 2026

Using a Split-belt Treadmill to Evaluate Generalization of Human Locomotor Adaptation
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Using a Split-belt Treadmill to Evaluate Generalization of Human Locomotor Adaptation

Published on: August 23, 2017

Spinal Cord Lateral Hemisection and Asymmetric Behavioral Assessments in Adult Rats
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Spinal Cord Lateral Hemisection and Asymmetric Behavioral Assessments in Adult Rats

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Main Results:

  • Obstacle avoidance failure rates significantly increased with greater speed differences between the legs.
  • The short-step strategy (SSS) was used more frequently under increased time pressure.
  • The long-step strategy (LSS) resulted in fewer failures but required longer preparation and swing phase durations, sometimes leading to interrupted swings and SSS.

Conclusions:

  • Simulated limping substantially elevates the risk of failing to avoid sudden obstacles.
  • Asymmetrical gait dynamics, induced by simulated limping, challenge normal obstacle negotiation mechanisms.
  • The study highlights the critical role of gait symmetry and timing in successful obstacle avoidance.