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Skilled finger movement exercise improves hand function.

V K Ranganathan1, V Siemionow, V Sahgal

  • 1Department of Biomedical Engineering, Lerner Research Institute, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH 44195, USA.

The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
|August 7, 2001
PubMed
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Skilled finger movement training significantly enhances hand function in older adults. This exercise improves pinch force control, hand steadiness, and manual dexterity, suggesting nervous system adaptations.

Area of Science:

  • Gerontology
  • Neuroscience
  • Rehabilitation Science

Background:

  • Aging leads to decreased muscle strength and impaired ability to maintain steady submaximal force.
  • Exercise interventions can mitigate age-related decline in hand function among the elderly.

Purpose of the Study:

  • To train elderly individuals in skilled finger movements.
  • To assess improvements in hand function, specifically finger pinch tasks, following training.

Main Methods:

  • Measured grip strength, maximum pinch force (MPF), and pinch force steadiness at various submaximal levels.
  • Recorded M wave and Hoffman (H) reflex amplitudes.
  • Trained 14 elderly subjects in skilled finger movements and evaluated their performance.

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Main Results:

  • Trained older adults demonstrated significant improvements in submaximal pinch force control and hand posture steadiness.
  • Enhanced ability to quickly relocate objects using finger grip was observed in the trained group.
  • A significant increase in the amplitude of the H reflex was noted in the trained participants.

Conclusions:

  • Skilled finger movement training enhances pinch force control, hand steadiness, and manual speed in the elderly.
  • Observed improvements suggest training-induced adaptations in both central and peripheral nervous systems.