Active Gains in Brain Using Exercise During Aging

This group will perform a 24-week resistance exercise program. Participants will engage in 180 minutes/week of resistance exercise (3 supervised sessions peer week, 60 min/session). The training will consist of a combination of upper and lower body exercises using elastic bands and participants' body weight as the primary resistance. Exercise load and intensity will be based on the number of repetitions (i.e.,10-12 repetitions), resistance of the elastic bands, in ascending order with seven intensities, and also on the exercises' difficulty (i.e., three levels). The prescribed targeted intensity will reach 70-80% of the participants' maximum rating perceived exertion (i.e., 7-8 RPE).The progression (horizontal) will be standardized according to the execution time and RPE, and individualized according to execution speed and band resistance. Heart rate will be monitored in all sessions. Further, intrinsic motivation before and after session and sleep quality will be registered.