# Heart Rate Zones (HR) vs Power Zones

**URL:** <https://www.trainerroad.com/forum/t/heart-rate-zones-hr-vs-power-zones/9503>\
**Category:** Training\
**Created:** [January 9, 2019, 7:46pm UTC](https://www.trainerroad.com/forum/t/heart-rate-zones-hr-vs-power-zones/9503 "2019-01-09T19:46:36Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Wera719](https://avatars.discourse-cdn.com/v4/letter/w/258eb7/32.png) [@Wera719](https://www.trainerroad.com/forum/u/Wera719)\
**Post date:** [January 9, 2019, 7:46pm UTC](https://www.trainerroad.com/forum/t/heart-rate-zones-hr-vs-power-zones/9503/1 "2019-01-09T19:46:36Z")

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Should power zones and heart rate zones be in sync with each other? I did a ride the other night and my hr zone average was more skewed towards Z2, whereas power was more Z4. thoughs?

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**Author:** ![mcneese.chad](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/mcneese.chad/32/15056_2.png) [@mcneese.chad](https://www.trainerroad.com/forum/u/mcneese.chad)\
**Post date:** [January 9, 2019, 7:49pm UTC](https://www.trainerroad.com/forum/t/heart-rate-zones-hr-vs-power-zones/9503/2 "2019-01-09T19:49:16Z")

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Not really.

[![](https://global.discourse-cdn.com/trainerroad/original/3X/6/3/635a2987e7e90aa4ae4c17453dd739549cdee539.jpeg "Power vs Heart Rate: How Modern Athletes Train") ](https://www.youtube.com/watch?v=gdfun9tociQ)

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Full blog post (that also includes the video):

> **[Power vs Heart Rate: How Modern Athletes Train](https://www.trainerroad.com/blog/power-vs-heart-rate-how-modern-athletes-train/)**
>
> The methods cyclists use to get faster have evolved over the years. Follow our discussion into why modern athletes train using a power-measuring device, instead of solely using a traditional heart rate monitor.

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And older info:

- [Training with Power vs. Heart Rate - TrainerRoad](https://blog.trainerroad.com/training-with-power-vs-heart-rate-whats-better/)
- [Ask Chad - Power vs Heartrate - TrainerRoad Blog](https://blog.trainerroad.com/ask-chad-power-vs-heartrate/)

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**Author:** ![JoeX](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/joex/32/6640_2.png) [@JoeX](https://www.trainerroad.com/forum/u/JoeX)\
**Post date:** [January 9, 2019, 7:54pm UTC](https://www.trainerroad.com/forum/t/heart-rate-zones-hr-vs-power-zones/9503/3 "2019-01-09T19:54:42Z")

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No, only in broad strokes and on an average day.

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**Author:** ![Jonnyboy](https://sea2.discourse-cdn.com/trainerroad/forum/user_avatar/www.trainerroad.com/jonnyboy/32/5802_2.png) [@Jonnyboy](https://www.trainerroad.com/forum/u/Jonnyboy)\
**Post date:** [January 9, 2019, 8:03pm UTC](https://www.trainerroad.com/forum/t/heart-rate-zones-hr-vs-power-zones/9503/4 "2019-01-09T20:03:29Z")

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+1 to all the above.

If you think about it, as you get fitter your heart rate should decline for a given power output. But so many influences can impact your heart rate, you may find yourself running a bit high or even just struggle to hit a heart rate due to fatigue. I could ride two exact workouts from one week to the next and see 10 bpm difference on the same intervals.

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**Author:** ![Wera719](https://avatars.discourse-cdn.com/v4/letter/w/258eb7/32.png) [@Wera719](https://www.trainerroad.com/forum/u/Wera719)\
**Post date:** [January 9, 2019, 8:06pm UTC](https://www.trainerroad.com/forum/t/heart-rate-zones-hr-vs-power-zones/9503/5 "2019-01-09T20:06:51Z")

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Thanks. makes sense now. I did feel a litte tired, and i’m sure the cold weather has an effect also.