I beleive that exercise is the best medicine for PD.
The best way to achieve benefits is to exercise on a consistent basis.
However, when it comes to exercise and PD, greater intensity equals greater benefits. Experts recommend that people with Parkinson's, particularly young onset or those in the early stages, exercise with intensity for as long as possible as often as possible. Your doctor might recommend an hour a day three or four times a week, but most researchers think that the more you do, the more you benefit.
Intense exercise is exercise that raises your heart rate and makes you breathe heavily. Studies have focused on running and bicycle riding, but experts feel that other intense exercise should provide the same benefit.
Regardless of your condition, you should always warm up and cool down properly, exercise in a way that is safe for you, and know your limits. There are many support groups, therapists, and exercise programs who can help with PD-safe exercise and help you to set up your own program if that’s what works best for you. Be sure to consult your physician.

Any exercise will be beneficial. Be sure to check out the tip sheet on exercises specifically helpful for people with PD.

Here are some tips for Becoming Physically Active http://www.parkinson.org/sites/default/files/Ti...

Hello Dillian...check this out. There has been some very rewarding results regarding this program.
https://www.youtube.com/watch?v=EfDHGbuvqiw

I exercise 2x per day 7 days a week. Do the BIG routine and ride my stationary bike. Up to 10 minutes. My left side is really affected. Almost like a stroke. I wish I could get down on floor I have hard time getting out of bed or rolling over in bed. Was dx in 9/15. Symptoms started in 6/15. Maybe one day I will be able to walk long distance without a walker. I PRAY every day for strength and courage. Its a EVIL disease.

Check on the Internet. There are several videos showing good exercises for PD patients.

Go to youtube.com. Several people with PD have posted different exercises. It helps to see it performed.