So the years and the beers (and pasta and pizza...) have taken their toll and I'm here at the age of 55 needing to lose weight and shape up. Although it's easier said than done, I pretty much know what I need to do to shed pounds and shape up but one thing is not clear to me. How do I determine what my target heart rate should be while doing excercise. I have been cleared to excercise by my Doc but he was non commital at the question. I know I need to work up to the max rate slowly, but ultimately I want to be in the best shape possible for Super Senior off road competition. Isn't there a formula based on age? Thanks.