For years, runners have used heart rate-based training to maximize their running potential. This method includes five “zones” ...

Picture two sprinters running side by side. If the first sprinter has a VO2 max of 45 and the second has a VO2 max of 50, the ...

A record-breaking endurance ace who holds the fastest known time on the Great Himalaya Trail, Ryan Sandes has also won all four of the 4 Deserts events.

What does VO2 max mean? Your VO2 max refers to how much oxygen your body uses while exercising (the V part is for ‘volume,’ ...