Deleted member 5559
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I had some concern over the default heart rate zones on my Polar. I could nasal breath into zone 3 so I wanted to personalize my zones to better align with "Training for the New Alpinism" heart rate zones. @mrprevost provided me some recommended methods a while ago for identifying heart rate zones. I've found that his recommended method matches the Karvonen method nearly exactly. If using a heart rate monitor, I highly recommend personalizing your zones using a more accurate method than (220-age)*zone %. It doesn't change MAF rate or anything due to that rate still being based on simple 180-age but it helped me categorize my training a little better.
For example:
Zone 1 (50-60%)
MAF: 146 bpm
For example:
Zone 1 (50-60%)
Standard Method (Polar Default): 93-111 bpm
Karvonen: 118-131 bpm
Karvonen: 118-131 bpm
MAF: 146 bpm
Standard Method = Top of Zone 3
Karvonen = Top of Zone 2
Karvonen = Top of Zone 2