My Clients do a quarterly ramp test on the Computrainer, and a 30min TT every six weeks. Over 50% are using wattage on the bike, which is much preferred.
HR zones are determined initally by the ramp test, modified after the 1st TT, further refined from race/training downloads, and kept current by the 30min TT's.
Wattage zones are determined the same way.
To answer Fulla, most riders discover, when they begin training with a power measuring device, that PE (perceived exertion) is incredibly innacurate. This really isn't a big surprise; what is (a big surprise) is how much HR can be an indeterminate measure of actual performance.
For example:
I was reviewing a rider's HR/power file last night. He was doing "Tempo" intervals (just sub-threshold efforts at 60-80 rpm.) HR zone for this workout would be 156-164 bpm, typically. Wattage target is 250 watts.
Actual HR at an average output of 250 watts varied from 140-170, steadily around 170 during the second half of the excercise, lower at the beginning of the excercise, with a full 5 minutes necessary to ramp up to the target HR zone. Wattage was constant, +/- 10 watts.
PE was somewhere else entirely.
Tech writer/support on this here site. FIST school instructor and certified bike fitter. Formerly at Diamondback Bikes, LeMond Fitness, FSA, TiCycles, etc.
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