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My tennis buddy has a heart rate monitor that calculates how many calories the wearer has burned. We played doubles for about an hour and 45 minutes one day, and the thing said he'd burned over 1000 calories.
I didn't have the heart to tell him that was probably wrong. Running a mile burns about 100 calories, and there's no way playing doubles for that amount of time is equal to running 10 miles.
Are HRMs known to be innaccurate at calculating calories burned?
I didn't have the heart to tell him that was probably wrong. Running a mile burns about 100 calories, and there's no way playing doubles for that amount of time is equal to running 10 miles.
Are HRMs known to be innaccurate at calculating calories burned?