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calories: use better formula for calculation #1090

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mipapo opened this Issue Aug 20, 2014 · 3 comments

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mipapo commented Aug 20, 2014

Reported by laufhannes on 26 Feb 44617255 01:21 UTC
Bercksichtigt bisher nur den fixen Wert "kcal/h" je Sportart. Zumindest fr's Laufen wre eine genauere Berechnung nach Tempo/Herzfrequenz und Gewicht sinnvoll.

Migrated-From: http://trac.runalyze.de/cgi-bin/trac.fcgi/ticket/1843

@mipapo mipapo added this to the Runalyze - Product Backlog milestone Aug 20, 2014

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laufhannes commented Sep 12, 2015

Men: kcal= [min] * (-55.0969 + 0.6309 x [bpm] - 0.1988 x [kg] + 0.2017 x [age]) / 4.184
Women: kcal = [min] * (-20.4022 + 0.4472 x [bpm] – 0.1263 x [kg] + 0.074 x [age]) / 4.184

see e.g. http://fitnowtraining.com/2012/01/formula-for-calories-burned/ (weight in [lbs] there!)

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laufhannes commented Sep 17, 2015

Remember to not change the value if it comes from the device and the user does only change the sport type (and keep the kcal/h from the device if the user changes duration).

@laufhannes laufhannes changed the title from Kalorien berechnen: Genauere Formel to calories: use better formula for calculation Sep 19, 2015

@laufhannes laufhannes removed this from the Runalyze - Product Backlog milestone Oct 15, 2015

@laufhannes laufhannes added feature and removed enhancement labels Oct 15, 2015

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laufhannes commented Aug 18, 2016

Further references:

The original paper has a + for the weight term for men and a - for women. There are other sources quoting this paper with both versions, so I'm unsure which is the right version to use. Verification is required if we want to use that formula.

Just some more formulas:

laufhannes added a commit that referenced this issue May 4, 2017

mipapo added a commit that referenced this issue May 15, 2017

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