I've seen the MRI slides that Jay has taken of people in his studies. Normal people have a lighted up area in the part of the brain affected by PD. Prior to cycling PD patients have almost no lighted area there. After doing the forced cycling, the PD patients' MRIs look nearly normal. I just about fell off my seat.

I would be interested in hearing results from the Theracycle users.

Peony, I wonder what would happen if you alternated using the Theracycle and pedaling on your own, trying to get to the point where you could go it alone. Good to hear you're having other benefits.