Hi,
Struggling to understand why there is a noticeable difference in the estimate of calories burned between rides on my Road bike and on my MTB (mix road & trail). Here's the data for two rides on consecutive days this weekend....
Road Cycling: 25.24mi, 1hr49, 152bpm(av), Zone4=65%, Zone5=7%, 1579cal
MTB: 27.07mi, 2hr28, 153bpm(av), Zone4=51%, Zone5=19%, 1590cal
I'm using a heart rate monitor, and the average heart rate is essentially identical for the two rides. This implies I am putting in the same effort on both rides, so I'd expect the calorie burn-rate to be the same. The MTB ride was longer duration (135% of the Road ride), so surely the total calories burned would be about 1/3rd higher. Yet the calories burned for the two rides are essentially the same?
It's almost as if the algorithm is using distance travelled rather than {heart-rate x time}. Any thoughts?
Thanks, M.