A 36-year-old member asked:

I'm just wondering, if you go above your target heart rate are you burning muscle?

1 doctor answer2 doctors weighed in
Dr. Rodney Del Valle
A Verified Doctoranswered
38 years experience
Not necessary: I assume you are talking abou your maximum calculated hr. If thats the case, not necessary. Depend how long you stay there. With high protein diet, weight lifting and short burst 1-2 mins every 5 mins of fast running for no more than 30mins, 3 times a week, probably not. Every person is different but you will built endurance and cardiac capacity. Check with a trainer for better results.
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Last updated May 23, 2013


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