A good Physical Therapist will not only address your injury, but also the cause of the injury. Far from providing a Shakespeare-style verbal scolding ("I bite my thumb at you!"), a Physical Therapist will address this issue by educating you. This education might include what exercises are contributory to current or potential injuries, how they can be modified and performed safely, appropriate levels of participation for your current fitness level, safe recovery or rest activities, and how to safely incorporate HIIT into your existing exercise or fitness routine. If you want, you can even rock out to Hearts on Fire or Eye of the Tiger while you are doing it. Properly performed HIIT can be a great way to get fit, stay fit, and keep you moving while adding some engaging variety to your routine. Just don't overdo it.
Bergeron, M.F. (2011). Consortium for Health and Military Performance and American College of Sports Medicine Consensus Paper on Extreme Conditioning Programs in Military Personnel. TheAmerican College of Sports Medicine, 10(6), 383-389. doi: 1537-890X/1006/383Y389
Danny Singles, PT, DPT, MA