pan y agua
Join Date: Aug 2005
Bikes: Wilier Zero 7; Merlin Extralight; Co-Motion Robusta; Schwinn Paramount; Motobecane Phantom Cross; Cervelo P2; Motebecane Ti Fly 29er; Calfee Dragonfly Tandem
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In my experience calories burned calculations on HRMs are highly inaccurate. My Sigma HRM always read substantially higher than my Powertap, often approaching 100% high.
While there is some margin of error in Powertap data, given the varience in efficiency of converting calories to KJ of energy, it's accurate with about 5%.
The huge varience between Powertap data, and HRMS tells me the HRM data is so far off as be basically worthless.
You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.