@ddljohn-- I think it can depend on how successful the surgery and healing is. We have a lot of post-fasciectomy patients come in for physical therapy where I work. For the most part, regular movement and light exercise can be done very easily and comfortably after the surgery. Very rarely, some people have complications like chronic pain even after surgery.
We do ask people who've had fasciectomy to take it easy with exercise and not go overboard if they feel strain or pain. We also advise using bandages and other supportive equipment to prevent any injuries after the surgery.
And as far as I know, if the patient is unable to go back to regular movement even after physical therapy, they can have another surgery for the fascia to be stitched back.