Summary
So, I'm in a gym the other day, and the following conversation takes place on the treadmills:
Guy: "While you run, grab those sensors. They'll tell you your heart rate."See the full content of this document
Extract
Intro to Training by Heart Rate
Gal: "OK, where do I keep it?"
Guy: "Oh you want to keep it above 90 percent."Gal: "For the whole 5 miles? Why?"Guy: "Yo...See the full content of this document
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