Exploring the Reliability of Self‐Reported Physical Activity in Aging Populations: A Chilean Cohort Approach

While sex differences in PA intensity were observed, no significant correlation between PA and cognitive performance was found in this cohort. These findings suggest the need for further research into the impact of PA on cognitive health, particularly exploring additional factors that may influence this relationship. Data collected using wearable fitness devices, already available for this cohort, is being prepared for comparison with self-reported survey data. This comparison will provide an opportunity to uncover potential discrepancies and question the feasibility of relying on self-reported surveys for accurate PA measurement, particularly in the cognitively impaired population.