Impact of Exercise in Parkinson's Disease

Exercise training will be performed 3x/week. After 2 sessions, training volume and intensity will progress over the first 4 sessions ramping up the number of sets to increase the volume. The full volume prescription will consist of: 1) 5 movements to improve strength and muscle mass (leg press, knee extension, chest press, overhead press, pull down), 3 sets each of 8-12 repetitions (\~30 total repetitions); 2) trunk exercises to improve postural stability (trunk extension and flexion); 3) 3-4 bodyweight exercises (selected from a menu) to improve power and balance (e.g. step up, squat, jump squat, lunge, side lunge, push-up, assisted pull-up, assisted dip). Bodyweight movements will be modified as necessary to match abilities.

Subjects randomized to the no-exercise group will receive a handout with tips for improving sleep. Additionally, study staff will provide the title page for a book on sleep relaxation techniques that is recommended for persons with sleeping difficulty. Dr. Amara will review the sleep tips with the subjects and make recommendations for improving current sleep habits. Subjects will be contacted by telephone every 4 weeks during the 16-week intervention period.