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Exercise effect on dynamic stability in older women: a randomized controlled trial

S R Lord1, J A Ward, P Williams

  • 1Prince of Wales Medical Research Institute, New South Wales, Australia.

Archives of Physical Medicine and Rehabilitation
|March 1, 1996
PubMed
Summary

Regular exercise significantly enhances dynamic postural stability in older women. A 12-month program improved balance and coordination, with gains linked to increased lower limb strength.

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Area of Science:

  • Gerontology and Exercise Science
  • Biomechanics and Motor Control

Background:

  • Dynamic postural stability is crucial for preventing falls in older adults.
  • Age-related decline in stability increases fall risk and associated injuries.

Purpose of the Study:

  • To investigate the impact of a 12-month regular exercise program on dynamic postural stability in older women.
  • To identify potential mechanisms linking exercise-induced stability improvements to neuromuscular factors.

Main Methods:

  • A 12-month randomized controlled trial involving 112 community-dwelling women aged 60-85 years.
  • Quantitative assessment of dynamic postural stability using maximal balance range and coordinated stability.
  • Measures of lower limb muscle strength, reaction time, and neuromuscular control were also recorded.

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Main Results:

  • Exercise participants demonstrated significant improvements in both maximal balance range and coordinated stability.
  • No significant improvements were observed in the control group.
  • Improvements in coordinated stability correlated with enhanced ankle dorsiflexion, hip extension, and hip flexion strength.

Conclusions:

  • A structured, 12-month exercise program effectively improves dynamic postural stability in older women.
  • Exercise interventions can be a viable strategy to enhance balance and reduce fall risk in the elderly.
  • Improvements are associated with gains in specific lower limb muscle group strength.