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 ...

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 ...

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 ...

Threshold work is one of the cornerstones of training for runners who are tackling distances from 800m to ultras. Your lactate threshold is the point at which lactate is produced and accumulates in ...

F or many would-be marathoners, January seems as good a time as any to dust off their trainers and begin the journey to ...

New perk: Easily find new routes and hidden gems, upcoming running events, and more near you. Your weekly Local Running Newsletter has everything you need to lace up! Subscribe today. One of the best ...

Conventional wisdom has long held that lactic acid is a metabolic scourge, bringing hard exercise stints to a screeching halt and causing next-day soreness. Recent research shows how wrong that rap is ...

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 ...