Incidental Physical Activity and Physical Fitness Associate with Sustained Attention and Impulse Control in Older Adults

Age-related changes have been observed in sustained attention and impulse control. Deficits in these functions are related to pathological aging. However, research suggests that an active lifestyle may exert a protective effect on cognition in aging. While the association between physical activity and cognitive functioning in older adults has been previously described, few studies have explored the relationship between incidental physical activity and fitness with sustained attention and impulse control in this population. Therefore, this study aimed to evaluate the association between incidental physical activity and various components of fitness and sustained attention and impulsivity in older adults. Fifty-four older adults were recruited (41 females and 13 males) with a mean age of 76.76 years (SD = 8.94). Physical activity levels were assessed using the Yale Physical Activity Survey (YPAS), physical function in healthy older adults was evaluated with the Senior Fitness Test, and sustained attention and impulsivity were measured using a computerized continuous performance task. Significant correlations were found between higher energy expenditure during housework and yardwork activities, and fewer commission errors and shorter reaction times during sustained attention task, and higher sensitivity during impulse control task (rho between 0.35 and 0.40, p < .01, β = 0.80). Additionally, higher scores between agility and balance were associated with better accuracy during the sustained attention task, and faster speed processing correlated to better performance impulse control task (rho between 0.33 and 0.36, p < .05, β = 0.80). Our study highlights the importance of incidental physical activity and various components of fitness on sustained attention and impulse control in aging.