Thanks for all the responses. I've been running for the better part of 25 years so I've also had a bunch of strains and sprains. I just got back from a hilly 30 mile bike ride and experienced no pain at all. I guess I should count my blessings. Does anyone have any experience with using an electro stim for injuries. My wife was in a car accident several years ago and part of her therapy was stim on her back. She kept the machine so I still have it. Tried to use it yesterday and the battery needs to be replaced by the company (Go figure). I was going to put it on my calf a couple of times a day to try and get the blood flowing in there. No harm in that right? The machine is en-route to Vancouver, Washington to have a new rechargeable battery installed so I won't have it back for a couple of weeks. So for now I'm just going to have to fall back on RICE. Thanks again.