cal openrowingmonitor in comparison to concept2

[luca-219]

Hi,
I read from concept 2 paper their formula to calculate CAL , I would ask you how much close is openrowingmonitor to this formula.
thank you

[JaapvanEkris]

We use

    // based on: http://eodg.atm.ox.ac.uk/user/dudhia/rowing/physics/ergometer.html#section11
    strokeCalories = (4 * cyclePower.clean() + 350) * (cycleDuration.clean()) / 4200

Where the reference to the Oxford website is the authorative source for rowing metrics. We multiply the metrics by 1000 to move from KiloCalories to Calories.

His source is in fact Concept 2 (Jon Williams is one of the designers of the Concept 2 Rowing Machines):

Comment Jon Williams of Concept2 (12 Aug 04)
The 300 kC/hour has always been our best approximation for keeping alive and awake and going through the rowing motion at a reasonable stroke rate on an erg with the flywheel removed. This was arrived at from internal experiments and observations, data from Fritz Hagerman and studies done at Ball State.