Lactate Explained From a Physiological Perspective

Lactate is a naturally occurring metabolite in the metabolic conversion of glucose into energy. When energy demands increase, it’s matched by a corresponding rise in lactate production. But when levels appreciably accumulate, lactate becomes a performance limiter. Here’s what you need to know.

Why Runners Fade in Trail Ultras

Why runners fade in trail ultras can be explained by an athlete’s durability, meaning their ability to maintain performance as fatigue accumulates. This article explores the concept of durability and why performance tests aren’t predictors of ultrarunning success.

Old Science, Modern Application of Heat Training

This article examines the history of heat acclimation research, the physiological adaptations that occur with heat exposure, and how both passive and active heat training can be used to improve endurance performance in real-world settings.

The Science of the Warm-Up

You generally know that athletes should warm-up before harder efforts. But do you understand why? We take a closer look at what happens in the body while “warming-up” and why it is important.

What is Functional Training?

Commonly mis-defined and misunderstood, find out what functional training actually is and why it is critical to endurance sports performance.

Running and Foot Health

Running and foot health are like two peas in a pod. Or are they? While runners clearly rely heavily on their feet, do they really take steps to ensure optimal foot health? Find out considerations that you should be aware of.

Is Zone 2 Really the Endurance Panacea?

Zone 2 is a trendy topic but how do you sift through all of the discussion to come to the right conclusions? We approach this topic through the lens of what we know scientifically, and a dose of reality to identify what coaches and athletes really need to understand.

10 Differences Between Road Racing and Ultramarathons

When it comes to endurance running and racing and training for events, not all races or distances are approached the same way. Find out how traditional roading racing distances and ultras are different.