How long is sport injury rehabilitation typically?

2-4 weeks: Your doctor will tell you exactly how long but it depends on the type of injury and the part that is injured and the treatment involved, studies have shown that you can maintain your fitness level even if you need to change or cut back on your exercise for several months. In order to do so, you need to exercise at about 70 percent of your vo2 max at least once per week. Stay fit by crosstraining.

Depends: It would depend on the injury.