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Related Experiment Videos

Reach to grasp: changes with age

K M Bennett1, U Castiello

  • 1Department of General Psychology, University of Padova, Italy.

Journal of Gerontology
|January 1, 1994
PubMed
Summary
This summary is machine-generated.

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Elderly adults exhibit slower reach-to-grasp movements but maintain similar grip coordination compared to younger individuals. This suggests compensatory strategies for age-related sensory decline in movement control.

Area of Science:

  • Biomechanics
  • Human Movement Science
  • Gerontology

Background:

  • Aging affects motor control, impacting daily activities.
  • Understanding age-related kinematic changes in reach-to-grasp is crucial for interventions.

Purpose of the Study:

  • To kinematically assess reach-to-grasp movements in elderly subjects.
  • To compare elderly and young adults' movement patterns and coordination.

Main Methods:

  • Kinematic analysis of reach-to-grasp using infrared markers (Optotrak system).
  • Comparison of movement initiation time, duration, and kinematic parameters between age groups.
  • Inclusion of both precision grip and whole hand prehension tasks.

Main Results:

Related Experiment Videos

  • Older subjects demonstrated slower movement times and prolonged approach phases.
  • Grip patterning and coordination remained comparable between elderly and young adults.
  • Age-related kinematic changes suggest compensatory mechanisms for sensory system decline.

    • Conclusions:

    • Aging alters reach-to-grasp kinematics, characterized by slower, longer movements.
    • Despite kinematic differences, grip selection and coordination are preserved in older adults.
    • Compensatory strategies likely mitigate age-related declines in visual and proprioceptive systems.