Last night when I exercised on a indoor spin bike for 43 minutes with the HRM on and all Garmin brand speed and cadence sensors connected to the bike, despite the 9 interval sessions with the HR reaching around 130-140 bpm, at the end of the session, the watch showed that I burned only 59 calories and the load showed only 30 and the intensity minutes showed 4. These data does not make any sense. Any other issues reported with the indoor bike data inconsistencies?
