FTL Athlete Member Content

The cardiovascular system powers endurance performance. Explore how training reshapes the heart, what causes cardiovascular drift, and why too much exercise may carry long-term risks.

We explore what it takes to develop from a recreational triathlete into an IRONMAN World Championship qualifier.  

An athlete’s rate of perceived exertion, or RPE, is one of the most underappreciated metrics. For ultra-athletes who are closely in touch with their bodies and minds, working with RPE is an essential component to training and racing.

Run your target marathon pace by developing basic speed before anything else.

You know your workout is supposed to be easy, but you just can’t help dropping the hammer sometimes. A leading neuroscientist lifts the lid on what’s going on in your brain when this happens—and what you can do about it.