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Experimental Methods to Study Human Postural Control
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Age-related changes in leg proprioception: implications for postural control.

Mélanie Henry1, Stéphane Baudry1

  • 1Laboratory of Applied Biology and Research Unit in Applied Neurophysiology, ULB Neuroscience Institute, Université libre de Bruxelles, Brussels, Belgium.

Journal of Neurophysiology
|June 6, 2019
PubMed
Summary
This summary is machine-generated.

Aging impairs leg proprioception, the sense of body position, affecting upright standing and potentially reducing functional independence. This review explores how these sensory changes impact postural control.

Keywords:
Ia afferentsbalancemuscle spindlesproprioceptionupright standing

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Area of Science:

  • Neuroscience
  • Gerontology
  • Biomechanics

Background:

  • Upright standing is crucial for daily activities and a model for sensorimotor function.
  • Postural control relies on integrating sensory inputs from vestibular, visual, and proprioceptive systems.
  • Leg proprioception, from muscle mechanoreceptors, is vital for detecting body sway.

Purpose of the Study:

  • To review how aging affects proprioceptive signals from the legs.
  • To present evidence on how these changes alter the neural control of upright standing.

Main Methods:

  • This is a narrative review.
  • It synthesizes existing literature on aging, proprioception, and postural control.

Main Results:

  • Aging alters muscle spindles and neural pathways, decreasing proprioceptive sensitivity and integration.
  • These alterations lead to reduced efficiency in postural control.
  • Changes in proprioception due to aging can negatively impact functional independence.

Conclusions:

  • Aging significantly impacts leg proprioception.
  • Altered proprioception due to aging modifies the neural control of upright standing.
  • These modifications have implications for maintaining balance and independence in older adults.