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.

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.

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.

Reverse Periodization

Traditional methods of periodization are commonly known and applied. But what about ‘reverse periodization?’ What is it; when and how should it be applied? We break it down for you here.

Beware of Shiny Objects

What is the most important component to your success as an athlete? Is it the “shiny objects” like super shoes, upgraded aero equipment, or the latest and greatest supplement? We think probably not. Something else may matter more.

Caffeine Use in Endurance Sports

Caffeine is well-known as a benefit to performance in many different ways. Find out how it can be used effectively and how it directly impacts athletes.