GPS-Sport ForenRun.GPS Wishlist / IdeasCalories calculation
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LeMarquis 24.11.2011 01:20:56 UTC

HRM calories calculation

As far is I know the amount of calories consumed is calculated by Run.GPS with a formula like: Distance * Sportstype multiplier * weight factor (probably non linear).
I'm more curious about how this amount is calculated for those who use a HRM.
When I analyse my own recordings the differences between trainings with / without HRM seem to be fairly small:

Cycling without HRM: 26 kCal/km
Cycling with HRM: 30 kCal/km ( = +15% )
Racebiking without HRM: 28 kCal/km
Racebiking with HRM: 30 kCal/km ( = +7% )
(bodyweight always between 70 and 80 kgs)

But there seem to be people who burn over 50 kCal/km while cycling (using a HRM) which seems to be quite a lot.
In such a case I would have burned almost a million calories the past 12 months, which is very unlikely.

Anybody got an idea what can cause these big differences?

Grtz,

LeMarquis
Psybadeck 28.05.2009 20:49:22 UTC

that's ok

from my personal knowledge in physics, that is not the worst way to calculate it.
Five things should be considered:
1) Distance
2) Height
3) Efficiency (e.g. bearings of the bike, stop-start losses ...)
4) Wind
5) Weight

As I understand, 1,2 and 5 are considered. This should be pretty good...

Can anybody of the programmers add some information?
mae 27.05.2009 22:34:34 UTC

poor calories calculation

I just fiqured out that calories are calculated simply x*distance. It does not matter how fast you go or how you clime, only distance and constant by sport is multiplied. Maybe this is fixed in future versions?
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