Exercise to ReGain Stamina and Energy (The EXERGISE Study)

Each exercise session will begin with a short warm-up followed by 30 min of walking. Participants will initially be instructed to walk at a moderate intensity, equivalent to a 5-6 on Borg category-ratio (CR) scale. Participants will be encouraged to, if possible, incorporate brief periods of vigorous walking (7-8 on CR10 scale) with a goal of achieving at least 10 min of vigorous walking per session.

Participants will be asked to walk for exercise in their community five days/week. Participants will be instructed to begin with 10-15 minutes of walking exercise/session in the first month of the intervention and to increase exercise duration by five minutes/session each week, facilitating reasonable but steady progress toward the goal of 30 minutes per session.