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Different ranges for Zones. Which to use?

rklingrkling
in General Training Discussions

I had a question about the different ranges for zones based on the tables that are listed on the site.  Looking at the EN Quick Start Guide, HR training zones are listed as follows:  Zone 1 65-78%, Zone 2 78-89%, Zone 3 89-93%, Zone 4 93-99%, Zone 5 100-102%.  When I look at my Data Tool Zones, they are listed as Z1/ < 70%, Z2/ 70-75%, Z3/80-85%, Z4/95-100%, Z5/ > 110%.  Now, I understand that the percentages on the Data Tool probably (?) are wattage zones, but  my HR ranges that were calculated there are different than the values I get from the Quick Start Zone %.  So... which should I use?  The reason that I ask this is that I will be using a bike that doesn't have a power meter next week, so I will HRM dependent.  If it were only a couple of beats, I wouln't worry about it, but the differences are pretty significant.

Thanks.

Richard

Comments

  • mgraffeomgraffeo

    Use the #'s in the Data tool.  Calculating the HR as a direct % of a measured effor (LT or max) doesn't take into account your resting heart rate, and therefore your "usable range".  The #'s in the data tool are what you're looking for.

    Mike

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