I’ve linked, further below, to a piece of content from Whoop that gives their take on HRV. It’s quite a nice athlete-focussed overview that’s straightforward to read.
It covers these broad topics and more:
- What it is, what causes it, how it’s measured, and why it’s an indicator of fitness
- What’s a normal HRV for you and why trends matter (I found this bit interesting)
- Factors that affect it and how to improve it
- How to use HRV to train smarter and more efficiently
This links to Whoop.com for the modestly-named “the ultimate guide to HRV” aka “everything you need to know about HRV“
I’m currently re-investigating Whoop v3 now that it allows HR to be broadcast but it’s proving to be taking a lot longer than I expected. Watch this space…