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Postural control and age

M Hytönen1, I Pyykkö, H Aalto

  • 1Department of Otolaryngology, Helsinki University Central Hospital, Finland.

Acta Oto-Laryngologica
|March 1, 1993
PubMed
Summary
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Postural stability declines with age, with children and older adults showing the most sway. Balance is best around age 50, relying on vision in older adults and somatosensory input in children.

Area of Science:

  • Biomechanics
  • Human Physiology
  • Gerontology

Background:

  • Postural stability is crucial for daily activities and injury prevention.
  • Age-related changes affect sensory systems (vision, proprioception, pressoreception) impacting balance.
  • Understanding these age-specific changes is vital for developing targeted interventions.

Purpose of the Study:

  • To quantify the age-related effects of vision, pressoreceptor, and proprioception on postural stability.
  • To identify age groups most susceptible to sensory system deficits affecting balance.
  • To determine the age at which postural stability is optimal.

Main Methods:

  • 212 healthy volunteers aged 6-90 years participated.
  • Postural sway velocity (SV) was measured using a force platform under various sensory conditions (eyes open/closed, firm/foam surface).

Related Experiment Videos

  • Proprioceptive and pressoreceptor function was assessed using calf muscle vibration perturbation.

    • Main Results:

    • Sway velocity exhibited a U-shaped curve with age, peaking in children and the elderly.
    • Optimal postural stability was observed around 50 years of age.
    • Older adults relied heavily on visual input for balance, while children's stability was sensitive to pressoreceptor and proprioceptive input.

    Conclusions:

    • Postural control mechanisms and sensory system reliance vary significantly across the lifespan.
    • Children and the elderly exhibit distinct vulnerabilities in postural control due to differing sensory system development and decline.
    • These findings highlight the importance of age-specific sensory contributions to maintaining balance.