If you're a runner with a running injury, you need to listen up. 

The biggest problem with running injuries is not that you have a broken bone, not that you have a sprained ankle, and not that you have Achilles tendinitis. 

The biggest problem is that you're going to lose your running fitness while you recover from that injury, if you're not really proactive.

Today on the Doc On The Run Podcast, we're talking about muscle atrophy, and whether or not it's reversible.