Age-related changes in hand function - it's not just about muscle strength.

Area of Science:

• Gerontology
• Neuroscience
• Rehabilitation Science

Background:

• Hand function is critical for daily living and independence.
• Aging leads to sensorimotor declines impacting hand dexterity and control, irrespective of other conditions.
• Current clinical assessments often overlook specific hand function, focusing on grip strength or balance.

Purpose of the Study:

• To review age-related functional hand declines.
• To highlight the significance of low force control and somatosensory feedback.
• To discuss interventions and influencing factors for hand sensorimotor function in older adults.

Main Methods:

• Mini-review of existing literature on aging and hand function.
• Analysis of sensorimotor changes, including dexterity, force control, and feedback.
• Examination of factors affecting hand use and training benefits.

Main Results:

• Aging significantly impacts hand sensorimotor capabilities, particularly fine motor skills and low force control.
• Somatosensory feedback plays a crucial role in maintaining hand function.
• Targeted training programs show promise for improving hand function.

Conclusions:

• Maintaining hand function is vital for quality of life in aging populations.
• Assessment and intervention should go beyond grip strength to include dexterity and fine motor control.
• Factors like sex, physical activity, and occupation influence age-related hand function changes.