Jane, pedaling for Parkinson is great. I attend 3 days a week. Bike 45 to 60 minutes a session with 15 minutes of strength training. I currently pedal 7.5 miles in 40 minutes. I did try boxing Rock Steady but did not care for it; however, the fitness center where i attend pedaling started Rock Steady . Tried it again and really like it. So i box one day a week also. I feel 100 percent better than i did a year ago. I'm on the neupro patch for medication. No side effects.