OK, this is a new one on me. If any runners and/or other knowledgable folks can tell me… what’s the nature of a muscle injury that hurts worse if you don’t use the muscle every hour or so? I’m nursing this old injury in the calf area since about 6 months. It came from running too far after too long of a hiatus. So I lay off running and start up only when the pain is minimal.
After observing this injury for a while, I notice something very odd: the injury hurts worst when I haven’t exercised the muscle for an hour or two. It hurts when I wake in the morning. At the end of a day at the office, I have to warm it up a bit before I get going. Last night after sitting through the Harry Potter movie, I found myself limping out.
I know this must be achilles, calf, or soleus, but what kind of muscle injury gets worse if you don’t constantly use the muscle?