During intense or prolonged exercise, muscles can feel like they’re burning the longer and harder someone pushes. This occurs because the muscles produce energy as quickly as possible by dipping into ...

If you’ve read even a small amount of running research, you’ll likely have come across the term ‘lactate threshold’. But what does it actually mean? In essence, your lactate threshold is the point at ...

If you're an endurance athlete, your lactate threshold can be an incredibly useful training tool – but what exactly is it, and how can you measure and use it? Lactate is created when muscle tissue ...

When runners talk physiology, two terms tend to dominate the conversation: VO2 max and lactate threshold. Although the two metrics are related, they are not the same – and they shape performance in ...

Besides sore quads and chafe marks, most new runners have one thing in common: confusion over the term “lactate threshold pace.” It pops up in training plans next to “easy effort” (self-explanatory) ...

Runners throw around the term “tempo run” like confetti. It’s confusing, even for well seasoned athletes, because it’s not a cut-and-dried definition like a lactate threshold workout. Frequently, ...

Carl Leivers began his career at Emory University where he coached the men’s cross country and distance track runners. During his time there, he earned multiple coach of the year honors and placed two ...