Aging-Related Changes in Bimanual Coordination as a Screening Tool for Healthy Aging

Area of Science:

• Gerontology
• Neuroscience
• Human Movement Science

Background:

• Global aging population necessitates strategies for healthy life extension and independence.
• Aging reduces manual dexterity, but bimanual coordination changes are not fully understood.
• Investigating bimanual coordination differences across age groups is crucial.

Purpose of the Study:

• To characterize bimanual coordination in young, young-old, and old-old adults.
• To compare performance parameters between different age groups.
• To identify age cut-off points for bimanual coordination using ROC analysis.

Main Methods:

• Participants performed in-phase and anti-phase bimanual coordination tasks.
• Key parameters measured included tap number, frequency, and interval.
• Receiver operating characteristic (ROC) curve analysis was used to determine age cut-offs.

Main Results:

• Tap number and frequency decreased sequentially with age (young, young-old, old-old).
• Average tap interval increased significantly with age.
• Age cut-off points for bimanual coordination were identified, particularly in the anti-phase task.

Conclusions:

• Bimanual coordination performance differs significantly across age groups.
• Tap number, tapping interval, and tap frequency are sensitive indicators of aging-related bimanual coordination changes.
• These parameters can help identify age-related decline in motor control.