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Relationship between physiological tremor and cognitive function in physically active older women.

Wonil Park^1,2, Bokbeom Kim¹, Jaesung Lee¹

¹Exercise Nutrition and Biochemistry Laboratory, Department of Physical Education, Korea University, Seoul, Republic of Korea.

Physical Activity and Nutrition

|May 5, 2022

Summary

Physically active older adults exhibit reduced physiological tremor and enhanced cognitive function compared to sedentary individuals. Hand tremor may predict cognitive status in seniors.

Keywords:

Physiological tremor cognitive function grip strength older adults physically active sedentary

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Area of Science:

Gerontology
Neuroscience
Exercise Physiology

Background:

Sedentary lifestyles in older adults are associated with physiological decline.
Physical activity is known to positively impact cognitive function and motor control.
Understanding the relationship between physical activity, tremor, and cognition is crucial for healthy aging.

Purpose of the Study:

To compare physiological tremor, grip strength, and cognitive function between sedentary and physically active older adults.
To investigate the potential of physiological tremor as a predictor of cognitive function in this population.

Main Methods:

Twenty-four older adults (≥65 years) were divided into sedentary and physically active groups.
Cognitive function was assessed using the Mini-Mental State Examination (MMSE).
Physiological tremor was measured using accelerometry; grip strength and physical performance were also evaluated.

Main Results:

The physically active group demonstrated significantly lower physiological tremor in both hands compared to the sedentary group (P<0.05).
Physically active older adults scored significantly higher on cognitive function tests (P<0.001).
A significant negative correlation was found between physiological tremor and cognitive function (P<0.05).

Conclusions:

Physical activity is associated with reduced physiological tremor and improved cognitive function in older adults.
Physiological tremor of the hands shows potential as a predictor of cognitive function in older adults.
Interventions promoting physical activity may benefit cognitive health and motor stability in seniors.