Thomas sits down with Marco Altini, prominent researcher in HRV, advisor to Aura, and dedicated ultrarunner, to discuss one of the most talked-about metrics in the running world today: Heart Rate Variability.

Marco's Substack:

https://marcoaltini.substack.com/

Marco's series of guides to HRV for runners on Marathon Handbook:

https://marathonhandbook.com/heart-rate-variability-guide/

00:00 3 things I learned

01:54 What does HRV measure

05:50 RHR vs HRV

07:50 Why everyone's HRV is different

09:45 What runners can use HRV for

11:10 Other ways to increase HRV

12:50 How to reliably measure HRV

15:18 Sleeping vs awake HRV

18:25 Best devices for measuring HRV

20:00 limits of HRV reporting

23:38 Future / tech limits of HRV interpretation

25:12 Winter lowers HRV

29:12 how Marco uses HRV in his run training

32:36 Marathon / ultramarathon recovery using HRV

The power - and limits - of HRV data (Heart Rate Variability), with Marco Altini