Mechanisms to Reduce Mental and Physical Fatigue Following Exercise Training in Older Adults

Thirty participants will be asked to participate in this research study. They will be randomized (like a flip of a coin) to exercise + a placebo or exercise + BCAAs for 8 weeks. We would like to examine the effects of the 8-week exercise + dietary supplement program on body composition (fat and muscle), physical activity habits, fatigue, and physical performance (such as walking and strength). We would also like to assess whether these outcomes are controlled by changes in markers (kynurenine metabolites) in the skeletal muscle and blood.