I just did a powerwalk in Zwift, say I walk with around 5.5km/h only.
That way I was wondering because the spm in Zwift where always around 220spm and that was double from what I was really walking.
So after my run I downloaded the data from Zwift into RunGap and exported the FIT file.
In the RunGap App the cadence also was shown with an average at 220spm - but in the FIT file I see that cadence is only at average 88 RPM and a max 122 RPM in the single measured points.
And that was what I was counting when counting my left right left steps I took
So where is the error in this? Why is SPM doubled from what I really was doing?