Datafield calculates running efficiency for the last 10s of user's move. The measuring unit is BpKM (Beats per Kilometer). This efficiency unit came from few discussions on online running forums and in following these discussions I tried to create the datafield for Garmin devices. It is possible to use it for cycling too.</p><p></p><p>Higher speed / faster pace together with lower HR values = lower value of BpKM = The lower value is the better one.</p>
v2.21 - Repaired my own fault :)
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