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A functional electric stimulation-assisted exercise therapy system for hemiplegic hand function.

Valeriya Gritsenko1, Arthur Prochazka

  • 1Centre for Neuroscience, University of Alberta, Admonton, Alberta T6G 2S2, Canada. valeriya@ualberta.ca

Archives of Physical Medicine and Rehabilitation
|June 5, 2004
PubMed
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Functional electric stimulation (FES)-assisted therapy improved hand function in individuals with chronic hemiplegia. This FES system offers a potential alternative for patients ineligible for other therapies.

Area of Science:

  • Neurorehabilitation
  • Biomedical Engineering
  • Physical Therapy

Background:

  • Stroke survivors often experience upper extremity hemiplegia, significantly impacting motor function.
  • Existing therapies may not be suitable for all individuals, particularly those with chronic or severe motor impairments.

Purpose of the Study:

  • To evaluate a functional electric stimulation (FES)-assisted exercise therapy system.
  • To assess the system's efficacy in improving motor function of the hemiplegic upper extremity.

Main Methods:

  • A before-after trial with a 2-month follow-up was conducted in a university research laboratory.
  • Six subjects with chronic hemiplegia (mean 5.6 years post-stroke) participated.
  • Participants engaged in 1-hour FES-assisted hand exercise sessions for 12 consecutive days using a prototype workstation.

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Main Results:

  • Kinematic data revealed statistically significant improvements in hand performance (pre/post ES=5.46, pre/FU ES=3.44).
  • Two of three clinical tests indicated significant improvements in hand function (pre/post ES=0.51, pre/FU ES=0.61).

Conclusions:

  • FES-assisted therapy demonstrated documented improvements in hemiplegic hand function in a small cohort.
  • This approach may benefit individuals with hemiplegia excluded from other therapies like constraint-induced movement therapy.
  • Further research is needed to establish the long-term clinical relevance of these functional improvements.