How many calories do you really burn with a one hour ride at 20mph. My heart rate monitor says 400. I've read it can be 1k. Really?
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M$2 Answers
Various online calculators do seem to come up with 1000 calories, but this detailed article would suggest a much smaller number, maybe 400-600:
http://stanford.wellsphere.com/biking-article/running-vs-cycling-burning-calories/236678
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M$http://www.healthstatus.com/calculate/cbc
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