Week 25: All About HRV
The Physiology of Endurance Running Podcast with Dan and Owain
Hi there 👋
Last week, I had a great conversation with Dan and Owain for their podcast (The Physiology of Endurance Running, which I’d recommend checking out regardless of this interview!).
We discussed pretty much everything from the physiological basis of HRV to applied protocols and limitations of current technologies, including pros and cons of using wearables, issues with stress estimates derived from continuous data, HRV during exercise, and more.
You can find the episode here:
I hope you will find it interesting. Thank you for listening!
CH4 Trail
Last weekend, we organized a trail race here in Brisighella, something I had been working on for the past year, together with Alessandra Saviotti and a few others who got us involved after we started spending part of the year back home.
It’s been wonderful to see so many old and new friends come together for a lovely morning on our trails (and some good food afterwards!).
Volunteering, directing, crewing my athletes, cheering, running around. What a day. My heart is full, and I cannot wait to start working on the next edition.
Thank you to everyone who joined us and helped make it happen.
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Some more impressions from the race, here.
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p.s. Special thanks to Andrea Barra, who captured our weekend so beautifully in the video below
p.p.s. If you haven’t been to Brisighella yet, join us in June 2027.
Personal Coaching for Runners
Please apply here should you be interested in working with me.
You can also learn more about my coaching, here.
Thank you!
The Book
Our book is out and available for purchase from Human Kinetics’ website, here (or on Amazon).
HRV4Training Pro
HRV4Training Pro is the ultimate platform to help you analyze and interpret your physiological data, for individuals and teams.
You can find a guide and overview here.
Try HRV4Training Pro for free at HRVTraining.web.app
When using Pro, the app will also automatically recognize your account and add the Normal Range to the Baseline view, together with detected trends and additional annotations, which can help contextualizing longer-term changes.
You will also be able to pick rMSSD as the parameter to see on the homepage of the app.

Thank you again for your support and for allowing us to remain independent.
See you next week!
Marco holds a PhD cum laude in applied machine learning, a M.Sc. cum laude in computer science engineering, and a M.Sc. cum laude in human movement sciences and high-performance coaching. He is a certified Ultrarunning Coach.
Marco has published more than 50 papers and patents at the intersection between physiology, health, technology, and human performance.
He is co-founder of HRV4Training, Endurance Coach at Destination Unknown, advisor at Oura, guest lecturer at VU Amsterdam, and editor for IEEE Pervasive Computing Magazine. He loves running.
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