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Standing Neurophysiological Assessment of Lower Extremity Muscles Post-Stroke
08:23

Standing Neurophysiological Assessment of Lower Extremity Muscles Post-Stroke

Published on: July 26, 2021

Muscle activation patterns and postural control following stroke.

S Jayne Garland1, Vicki L Gray, Svetlana Knorr

  • 1Dept. of Physical Therapy, University of British Columbia, Vancouver, British Columbia.

Motor Control
|December 18, 2009
PubMed
Summary
This summary is machine-generated.

Stroke survivors often experience sensorimotor deficits affecting balance. This review details motor control impairments and altered muscle activation patterns impacting postural control recovery in stroke patients.

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Area of Science:

  • Neuroscience
  • Rehabilitation Medicine
  • Motor Control

Background:

  • Stroke frequently leads to persistent sensorimotor deficits, significantly impairing balance and overall quality of life for survivors.
  • These deficits disrupt the ability to perform rapid, precise muscle force adjustments crucial for maintaining stability.

Purpose of the Study:

  • To review motor control impairments following stroke.
  • To examine the impact of these impairments on muscle activation patterns during postural control.

Main Methods:

  • Literature review focusing on sensorimotor deficits post-stroke.
  • Analysis of studies investigating muscle activation during postural control in stroke survivors.

Main Results:

  • Stroke-induced motor impairments result in slow, weak, and imprecise force production, hindering effective postural responses.
  • Both feedback and feedforward postural responses are compromised by impaired timing, magnitude, and sequencing of muscle activation post-stroke.
  • The severity of muscle activation impairment correlates with the extent of motor control deficits and adopted compensatory strategies.

Conclusions:

  • Altered muscle activation patterns are a key consequence of motor control impairments after stroke.
  • The central nervous system employs various mechanisms to enhance muscle activation for postural recovery in stroke survivors.
  • Understanding these impairments is crucial for developing targeted rehabilitation strategies to improve balance and function.