Alex Hutchinson

A new study compares active and passive interval recoveries, but physiology isn’t the only factor to consider.

The algorithms used to estimate your training load have some fundamental flaws, scientists say.

Runners smack the ground harder—but get injured less—in more cushioned shoes. New research explains why.

Recovery, just like training, is highly individualized from person to person. Recent research shines a light on why that is.

Different workout styles can get you equally fit, but they affect your body differently—which suggests that you should mix it up.