Jim,

I noticed the same thing with a Lifecycle I used to ride.  Although kcal/h and 
watts both measure power, they differed on the Lifecycle by a large factor 
(something like a factor of 3 or 4).  I believe that watts was the actual 
output power you produced, and calories related to how much energy your body 
used.

A search for French language web pages with nutritional web pages suggests 
that usage both kJ and kcal are in common use in France.  A workbook for 
school children was mostly in kJ.  Other pages had everything dual-labeled.  
I recall buying candy bars in France labeled in kJ only.

John


On Sunday 11 January 2004 13:00, James Frysinger wrote:
> My wife and I just got back from the local fitness center which we recently
> joined. Today I used a rowing machine for the first time and noted a couple
> of interesting features.
>
> One of the display options on the LCD readout is time to row 500 m. Why 500
> m, I wonder. Is that a standard race length for crew meets. (You know the
> kind---shells, oars, obnoxious helmsman.) I think it also displays the
> cumulative distance rowed in meters.
>
> Another display option provides power output in watts. I was averaging 50 W
> today in my warm-up prelude to using the Nautilus machines, since I was not
> trying to set any records. My output varied from 40 W to 60 W and never
> went any higher, so rumors that I'm on a par with a dim bulb are probably
> true.
>
> Somewhere in all those displays was one that read out in calories per
> whatever. On a machine that is so neatly metric, why calories? Aren't we
> ready for joules?
>
> Jim

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