Marathon Running Podcast by Marathon Journal · Episode 301 · February 16, 2026 · 26 min
301. "How Much is Too Much" - New Research Redefines Marathon Training
In this episode of the Marathon Running Podcast , updates and expert insights to keepyou informed on the latest in running and competitive sports. We sit down with Arj Thiruchelvam , performance coach and founder of Performance Physique, todiscuss a groundbreaking study published in the British Journal of Sports Medicine . We asked Arj to help us redefine "how much is too much" and why your smartwatch might be giving you a false sense of security regarding your training load. We tease the "30-Day Window" and why a single-session distance spike is the most dangerous move a marathoner can make. Why You Should Listen: You will learn how to scientifically audit your training month to prevent overuse injuries and why structural "load tolerance" is different from aerobic fitness. Our guest this episode: Arj Thiruchelvam — performancephysique.co.uk Connect with Us: Our website: https://www.marathonjournal.com YouTube: https://youtube.com/@marathonjournal Instagram: https://www.instagram.com/runningpodcast Followus on Strava: https://www.strava.com/athletes/30798607