Muscular Endurance — The Missing Piece For Most Mountain Athletes – By Jon Fearne
Muscular endurance, not VO₂ max, separates elite mountain athletes from the rest. In steep, loaded climbs the legs often fail before the lungs, exposing a gap that flat‑ground cardio masks. Jon Fearne’s E3Coach framework stresses building a solid aerobic base first, then adding one weekly progressive uphill‑under‑load session to develop leg durability. The approach balances intensity, volume, and recovery to prevent plateaus and protect overall fitness.
Stop Worshipping VO2 Max
VO2 max is heavily marketed by wearables and apps, yet it rarely limits seasoned endurance athletes. While beginners can boost VO2 max quickly, trained athletes hit a plateau, making further gains dependent on efficiency. The article argues that lactate threshold,...
A Little Bit of Science Behind Your Endurance
Endurance athletes often overlook that the aerobic system powers most of their performance, not just short, high‑intensity efforts. While anaerobic pathways deliver quick bursts, they are limited to seconds or minutes and cannot sustain long‑duration activity. A well‑developed aerobic base...
Aerobic Fitness – The Truth No One Sells By Jon Fearne
Jon Fearne argues that aerobic fitness—not flashy high‑intensity workouts—is the foundational pillar of endurance and adventure performance. Drawing on 29 years of coaching, he cites elite results such as 24‑hour world champion Steve Date, South Pole expeditions, and Kona Ironman...