High-intensity interval training, or HIIT, is a great way to torch calories, boost your metabolism and get a great workout in a shorter amount of time. And if you're a fan of hopping on the treadmill ...

Those mid-class sprint intervals are tough. But experts break down whether they really get you ready for race day.

High-intensity interval training (a.k.a., HIIT) is a triple threat: “It’s quick, easy, and effective,” says Angela Gargano, a certified trainer and creator of Strong Feels Good & Pull-up Revolution.

Treadmill workouts can seem boring, but they don’t have to be. One workout that’s trending on TikTok, called the "12-3-30," is super easy to follow and even fun. The concept is simple: set the ...

At times, even the hardiest running souls want to avoid the great outdoors, especially in the winter when you're faced with freezing temperatures, spine-tingling winds and precipitation to dampen both ...

Fitness experts explain the heart health benefits of the Norwegian 4x4 cardio method, and how to include it into your regular ...

Welcome to Start TODAY. Sign up for our Start TODAY newsletter to receive daily inspiration sent to your inbox — and join us on Instagram! This month we will be alternating between HIIT walks and a ...

Walking or running on a treadmill can provide moderate to vigorous physical activity that burns calories and improves cardiovascular fitness. The ideal length of a treadmill workout depends on goals.