Loading episode…
Loading episode…

Running
Episode context
Listen here or keep browsing the show and related sport coverage from here.
Heart rate, pace, and power are the metrics every endurance athlete tracks, but they're all proxies for what's really happening inside the body. In this episode, Brady sits down with Arnar Larusson, co-founder of Tymewear and the mind behind the VitalPro device. Arnar makes the case for ventilation as a more direct, more stable window into internal workload and fitness.
Custom insoles made with supershoe foam: visit kilarun.com and use code “RLRH” to get $50 off your first order.
Next listen
All from Run Long Run Healthy →
Next listen
Carb Loading Before a Marathon: Science or Old-School Advice?
Listen guide
"Ventilation Training Explained: Is Breathing Rate a Better Metric Than Heart Rate?" is an episode of Run Long Run Healthy. Runtime 1 hr 7 min. Published September 2, 2026. Hit play above to stream it here, or open the free Spot Sports app for background play and offline downloads.