Hi Janice, and thanks for the very positive update -- 5-mile runs are fantastic, good for you!! I'm sorry to say I don't know of studies regarding HARD exercise workouts, but there is ample confirmation that regular exercise is greatly beneficial for people with PD. Incidentally, Beth phoned from Virginia Beach a few days ago; she is doing very well, loved Arizona and New Mexico, but is getting a bit travel-weary and thinking of planning her trip back to Australia. She is such a resourceful and courageous woman, truly a role model and ideal; can't begin to say how much I admire her! Best regards, Kathrynne Janice Morgan wrote: > I have started to run > because of Beth. I feel better and have much better balance now. I run 5 > miles three times a week and do Astanga yoga one day and Hotha yoga another > day, so in all I work out very hard five days a week. I am on Sinemet 25/100 > two times a day and .25 mg of Requip three times a day along will all of the > vitamins I also take. I have found that I am much better with this hard work > out and like the new body it has given me. I have dropped in size quite a > bit. I would like to know if there has been any studies about people with PD > and hard exercise and how they have benefited from it. I know that it has > done wonder with me, although I still get tremors on the right side, and my > legs moves in and out on me. Other than that I have not fallen in some time. -- Kathrynne Holden, MS, RD Medical nutrition therapy for Parkinson's disease Author: "Eat well, stay well with Parkinson's disease" "Parkinson's disease: assessing and managing unique nutrition needs;" "Risk for malnutrition and bone fracture in Parkinson'sdisease," J Nutr Elderly. V18:3;1999. http://www.nutritionucanlivewith.com/