Single leg exercise benefits for injured runners

I am going to make a statement and see if you agree with me.  “Rest is bad, and exercise is good.”  Do you agree?  Almost every runner who calls me for a second  opinion consultation has been injured, has been told they have to rest, and they have been told they cannot exercise in order to get better. Sometimes that is true. But 100% rest is rarely the case in runners. Unless you fell off the roof and broke your back and both, then you can probably use one of your legs to exercise and maintain some of your running fitness while your other foot that is injured is resting and recovering.  Today on the Doc On The Run Podcast, we're talking about single leg exercise benefits for injured runners.