I updated about this client a few weeks back, having reintegrated weighted squat in safely via this Hatfield variant. I had a Facebook post about him once (swipe left) which ended catching around 10k views and 300k reach. That was a few years ago. He’s still kicking, CLEARLY.
Now, as I predicted, first he repped out 170lbs (his max effort was 150 just a few weeks ago) and tried 200 on for size, as you can see, fairly nonplussed. video here: https://www.instagram.com/p/Bv6dJl6jXIx/
Whatever you think is impossible is likely just difficult in disguise. There are many people without Parkinson's who are so weak they can't do this; BUT they could train to if they just put the excuses aside. And many more yet might think that someone with a neurodegenerative disease couldn't PROGRESS athleticism to do this. Well, reality is staring you in the face.