Comparison of Motor Reaction Time Between Active and Sedentary Older Adults: A Cross-Sectional Study

Abstract

This study examined differences in motor reaction time between physically active and sedentary older adults. Aging is associated with reductions in cognitive processing speed, muscular coordination, and neuromotor efficiency. Regular physical activity may attenuate these age-related declines and support functional independence. A cross-sectional design was employed involving 60 participants aged 60–75 years, categorized into active and sedentary groups based on weekly physical activity levels. Computerized visual reaction tests were administered under standardized laboratory conditions. Results demonstrated significantly faster mean reaction times in the active group (0.42 ± 0.05 s) compared to the sedentary group (0.58 ± 0.07 s) (p < 0.001). The findings indicate that habitual physical activity positively influences neuromotor performance and functional independence in aging populations, with implications for fall prevention and rehabilitation practice.