It’s important to have a positive mindset with rehabilitation exercises. Instead of focusing on the can’t focus in the can.
For instance, if a boxer is having knuckle pain with hitting the heavy bag, don’t focus on not hitting the heavy bag focus on the can. Hit the water bag instead. If you are having pain over 4 rounds, hit the bag for 2 rounds then focus on core strength and cardiovascular conditioning for the rest of the session.
If a swimmer has a shoulder injury then they can swim with the kickboard and focus on legs. If the footballer has a leg injury, core and upper body sports specific strength is the focus.
Focus on the can, not the can’t. A positive mindset can help the recovery. So focus on the good for a good result.