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Practice effects in bimanual force control: does age matter?

Solveig Vieluf¹, Ben Godde, Eva-Maria Reuter

¹a Jacobs Center on Lifelong Learning and Institutional Development , Jacobs University Bremen , Germany.

Journal of Motor Behavior

|January 10, 2015

Summary

This summary is machine-generated.

Older adults show declines in fine motor control and bimanual coordination. While all age groups improved with practice, late middle-aged individuals exhibited distinct learning strategies in force modulation during precision grip tasks.

Keywords:

aging bimanual coordination fine motor control motor learning precision grip

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Area of Science:

Motor Control
Human Factors
Aging Research

Background:

Fine motor control and bimanual coordination are crucial for daily activities.
Age-related changes can impact motor performance, particularly in complex tasks.

Purpose of the Study:

To investigate age-related differences in fine motor control during a bimanual coordination task.
To analyze how different age groups adapt their motor strategies with practice.

Main Methods:

Participants (young, early middle-aged, late middle-aged) performed a precision grip task requiring force modulation.
Analysis focused on accuracy and variability of timing and force, and hand-hand vs. hand-stimulus coupling.
Practice effects were assessed by comparing initial and final trials.

Main Results:

Late middle-aged adults showed poorer performance in accuracy and timing compared to younger groups.
All age groups demonstrated similar performance improvements with practice.
Distinct age-related learning strategies emerged: older adults prioritized force amplitude, while younger adults focused on timing.

Conclusions:

Fine motor control in bimanual tasks declines with age, particularly in late middle age.
While practice benefits all age groups, adaptive strategies differ, suggesting unique motor learning profiles across the lifespan.