I do the finger exercises videos that were posted a few days ago. I have Parkinson's that causes a left hand tremor. When doing the exercises I can't extend my left FU finger or ring finger. The pointing index finger and pinkie fingers extend normally.
Is this from PD or is it more likely from turning 65 years old? There is stiffness and pain from arthritis in the index finger but not in the other fingers.
TIA,
kpo