Blood lactate testing is a growing trend, but it only works if you know what to look for.

Take these seven science-based facts of training into account for better results from your program.

A new study suggests compression stockings reduce lactate production, but there's a catch. They also seem to decrease performance in seasoned runners.

You work as hard as you can, your muscles become acidic, and your effort deteriorates. Is lactic acid to blame? Here is an update on this belief and the new research that supports it.