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Electroencephalography Network Indices as Biomarkers of Upper Limb Impairment in Chronic Stroke
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Quantifying upper limb motor impairment in chronic stroke: a physiological profiling approach.

Lewis A Ingram1,2, Annie A Butler1,2, Matthew A Brodie1,2

  • 1Neuroscience Research Australia, Sydney, New South Wales, Australia.

Journal of Applied Physiology (Bethesda, Md. : 1985)
|July 15, 2021
PubMed
Summary

The upper limb Physiological Profile Assessment (PPA) effectively quantifies motor impairments after stroke, identifying specific deficits in both affected and less affected limbs. This tool aids clinicians in tailoring rehabilitation for stroke survivors, improving functional recovery.

Keywords:
movement disordersrehabilitationstrokeupper extremity

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Area of Science:

  • Neurorehabilitation
  • Biomedical Engineering
  • Clinical Assessment

Background:

  • Upper limb motor impairments are prevalent after stroke, significantly impacting daily activities and independence.
  • Individualized assessment is crucial for optimizing functional recovery and rehabilitation strategies.
  • The upper limb Physiological Profile Assessment (PPA) offers quantitative insights into sensorimotor function.

Purpose of the Study:

  • To investigate the utility of the upper limb Physiological Profile Assessment (PPA) in a chronic stroke population.
  • To compare PPA performance between individuals with chronic stroke and age-/sex-matched controls.
  • To examine the correlation between PPA performance and established measures of stroke-related sensorimotor function and disability.

Main Methods:

  • Fifty participants with chronic stroke underwent the upper limb PPA for both affected and less affected limbs.
  • PPA performance was compared against 50 age- and sex-matched control subjects without a history of stroke.
  • Correlations were analyzed between PPA results and Fugl-Meyer Assessment (FMA) and Stroke Impact Scale (SIS) scores.

Main Results:

  • Individuals with chronic stroke exhibited significantly impaired upper limb PPA performance in both limbs compared to controls.
  • PPA performance demonstrated strong associations with sensorimotor function (FMA) and disability (SIS) measures.
  • The upper limb PPA proved to be a valid tool for quantifying upper limb function in chronic stroke.

Conclusions:

  • The upper limb PPA is a valid and reliable tool for assessing domain-specific sensorimotor deficits in chronic stroke.
  • Quantitative PPA data can inform individualized rehabilitation plans and track recovery progress.
  • This assessment facilitates personalized treatment by highlighting specific patient strengths and limitations.