Hi All
Garmin seems to calculate the average heart rate of 2 or more activities incorrectly.
Example.. If I were to run for 2 hrs at an average HR of 150 bpm, and on another activity I run for 0.5 hrs at 110 bpm. Garmin would calculate the Average HR for both activities as 130 bpm. (150+110) /2 This is incorrect.
However the two activities must be time weighted. The correct calculation should be (150*2 + 110*0.5) / (2+0.5) = 142
It would be appreciated if someone could confirm this.
Thanks