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July 26, 2025 31 mins

More than likely, your watch reports your resting heart rate (RHR) and heart rate variability (HRV) - but what do these numbers actually mean? We look at the science behind these metrics and discuss whether or not runners should use HRV and RHR to adjust their training.

You will learn:

✅ Why does resting heart rate matter for runners?

✅ Should you use HRV to inform your training?

✅ Does these metrics help you recover better?

✅ Does tracking your HR improve your running performance?

✅ Are your HRV trackers reliable?

References:

✅ PMID: 35853460

✅ PMID: 37516677

✅PMID: 29686813


Thank you to our sponsors:

➡️Skratch: Naturally flavored, science-backed sport nutrition. Follow link Skratch Sample Pack and use code TREADLIGHTLY for 20% off your first purchase.

➡️Boulderthon: If you're looking for a scenic Colorado race, Boulderthon offers it all: views, big race vibes, and faster courses this year. Use code RUNTOTHEFINISH to get $20 off registration at https://www.boulderthon.org/ for the marathon, half, 10K, or 5K.



Let’s stay connected:

➡️ Join our community at patreon.com/treadlightlyrunning

➡️ Tread Lightly Running Podcast on Instagram: https://www.instagram.com/treadlightlyrunning/

➡️ Laura Norris Running on Instagram: https://www.instagram.com/lauranorrisrunning/

➡️ Hundreds of evidence-based training tips on Laura’s website: https://lauranorrisrunning.com/

➡️ Run to the Finish on Instagram: https://www.instagram.com/runtothefinish/?hl=en

➡️ Thousands of running gear reviews and training guides:https://runtothefinish.com/

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