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Adjust HR training zones

Feature Requests

HR training zones in Join are very low compared to other training systems. Eg. Join says I should do my endurance blocks at 116-134 bpm, while Intervals.icu says my aerobic Z2 is 142-157 and Garmin says Z2 is 141-158. They are all based on threshold HR, which for me is 176.

Posted by JoinUser5876587 ·
3 comments

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Comments3

  • M Quint

    •

    Nov 1, 2025

    using the join cycling app makes actually no sense for me. it seems to calculate the power/heart rate zones on HRmax percentages only. I usually use the Karvonen method which takes resting HR also into account and results in much higher zones 1-3. if i would follow my usual karvonen-based HR zones, join would always rate my sessions poor and tell me to train less intensive because their own HR zones are so ridiculously low. really sorry. i used and liked the app for its adaptability, but like this it makes no sense for me.

  • Arhu

    •

    Apr 6, 2025

    Yes and threshold heart rate detection should (like after an FTP test) should only ever detect increases in threshold heart rate. After I marked a ride as FTP test join suggested my threshold heart rate be lowered from 172 to 159, which doesn't make sense as max heart rate might lower with age (which isn't even certain) but not a lot

  • phillypharm

    •

    Jan 24, 2025

    I agree, I think there needs to be more custom zones. I use % heart rate reserve too and my zones are very different. Also, cycling and running zones can be different so I’d like to see that option too.