Uploaded February 2026 | Updated September 2026, 2 weeks ago

---

In this video, Martin Rios explains why running slower will actually improve endurance and make you a faster runner. Martin Rios discusses why fast jogging is not effective for building an aerobic base and why zone 2 cardio is the best method. Martin Rios then explains how to do zone 2 cardio so you can build better endurance.

#runner #training #fitness #zone2 #workout #hybridathlete