Band Work

Building up tendons and ligaments can be done with high-volume band work. Doing 100 to 200 reps two or three times per week of banded leg curls from both a seated or prone position will do the trick. You can also perform prone lying leg curls with ankle weights for up to 200 reps per leg. This will not only strengthen ligaments and tendons (to keep you from pulling a hammy), but they're also great for active recovery. – Jason Brown