Alex Hutchinson

Replacing lost salt is a pillar of sports nutrition, but new research suggests more isn’t always better

How well you can see your surroundings matters, but subtle gait changes also burn more energy.

Elite running coaches weigh in on what it means to be talented and how they predict who will run fastest

New data shows that, unlike a car, you can’t perform well with a half-full fuel tank

A pair of experiments find that mice choose to run less after taking antibiotics, even though their endurance is unchanged

New data outlines how much they run, how long it takes to resume training after giving birth, and how well they return to competition

Here’s what the science says about making it to the top as quickly and efficiently as possible.

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.