Done correctly, high-intensity interval training is one of the most efficient forms of exercise. Here’s how to do it. By Amanda Loudin Workout trends come and go, but when it comes to the biggest bang ...

If you like full-body workouts that focus on pull-push-legs-core, this circuit of these fitness components will challenge you, especially if you go heavy on the lifts and push your maximum on the ...

Tabata workouts are short, intense exercises that require pushing yourself to the limit. Here's how to do Tabata-style exercises at any fitness level.

Easy miles are all the other miles – the ones that aren't tempos or intervals or long runs. They’re the entries in your training log that make up a large percentage of your weekly mileage total, but ...

The logical response to a bad race is simple: train harder. Whatever you’ve been doing didn’t get you the results you wanted, so you need to dial up the intensity to salvage your racing season. Pain ...

Before I fell for running, I thought the hardest thing about the sport was the fast stuff: the speedwork, the sprints, and the intervals. And I do find that running fast—making my lungs beg for air, ...

One of the big debates in endurance sports these days is about “training intensity distribution,” which is a fancy term for how much of your training time you spend going easy, medium, or hard. The ...