Thread: can't rise HR above 92%HRm
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Old 05-01-21, 06:28 AM
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razorjack
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I was just more worried that my VO2Max interval can be not effective, if I don't keep >90%HRm.
but when I do 3min intervals in PZ5 (105-120%FTP), I can accumulate about 15-16 mins, before it starts to be impossible to keep >105%FTP. So I guess it's quite right ?
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