The Power - And Limits - of Heart Rate Variability

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 Run Long Run Healthy is brought to you by Marathon Handbook. ➡ https://marathonhandbook.com Subscribe to the Run Long Run Healthy podcast: ➡ Spotify: https://bit.ly/RLRH-spotify ➡ Apple podcasts: apple.co/43iqUKx Get the RLRH weekly newsletter (choose free or paid): ➡ https://marathonhandbook.com/run-long... ➡ https://runlongrunhealthy.substack.com/ Follow us online: BRADY ON X ➡ https://x.com/B_Holmer/ PHYSIOLOGICALLY SPEAKING (Brady's Newsletter) ➡ https://www.physiologicallyspeaking.com/ MARATHON HANDBOOK IG ➡ / marathon.handbook