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Related Experiment Video

Updated: May 29, 2026

Quantifying Arms and Legs Contributions during Repetitive Electrically-Assisted Sit-To-Stand Exercise in Paraplegics: A Pilot Study
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Quantifying Arms and Legs Contributions during Repetitive Electrically-Assisted Sit-To-Stand Exercise in Paraplegics: A Pilot Study

Published on: November 11, 2022

How performing a repetitive one-legged stance modifies two-legged postural control.

Cyril Burdet1, Nicolas Vuillerme, Patrice R Rougier

  • 1Laboratory of Exercise Physiology, University of Savoie, Le Bourget du Lac, France.

Journal of Strength and Conditioning Research
|September 14, 2011
PubMed
Summary

Repetitive leg exercises enhance postural control by improving the body's ability to detect movement. This suggests that stimulating sensory cues through exercise benefits motor system control.

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Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability

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Area of Science:

  • Biomechanics
  • Neuroscience
  • Motor Control

Background:

  • Proprioceptive cues are crucial for postural control.
  • The impact of repetitive muscular activation on proprioception and postural control remains under-investigated.

Purpose of the Study:

  • To assess the short-term effects of single-leg exercise on two-legged postural control with eyes closed.
  • To investigate how repetitive muscular activation influences the contribution of proprioceptive cues to postural stability.

Main Methods:

  • Healthy subjects performed a single-leg exercise.
  • Postural control was evaluated using a force platform measuring center-of-pressure (CP) displacements.
  • Data were analyzed using classical parameters (variance, velocity, area) and fractional Brownian motion (fBm) modeling.

Main Results:

  • Classical postural control parameters showed no significant changes.
  • Fractional Brownian motion (fBm) analysis revealed significant alterations in postural control post-exercise.
  • Specifically, spatial and temporal parameters of center-of-gravity (CG) movements along the anteroposterior axis decreased.

Conclusions:

  • Repetitive muscular activation, through single-leg exercise, improves the detection of body movements.
  • Enhanced proprioceptive feedback allows for quicker triggering of corrective postural adjustments.
  • These findings highlight the benefit of repetitive sensory stimulation for motor system control, relevant for activities requiring precise muscle length control.