Peter Attia· MD
in cycling and Peloton uses this system that is the metric by which the zones are set so zones one through seven are a function of power not heart rate and they are all a function of that FTP number
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
in cycling and Peloton uses this system that is the metric by which the zones are set so zones one through seven are a function of power not heart rate and they are all a function of that FTP number
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