All I'm going to say is that even in most partial dislocations (which this was not described as such), splint or sling immobilization is typically carried out for at least a week. After that, range of motion exercises. Then, strengthening phase which begins with exercise beginning with gentle supporting muscle exercises to regain full range of motion, graduating to regain full strength. Then power exercises when muscles are at full strength. Push ups for a 288 lb man on the 4th day? Something appears to be wrong with the reporting of the injury or the rehab regimen.