Interval Training

These tips can help you make the most of your HIIT workout.

This interval workout has you racing against the clock, improving endurance, building muscle and boosting your metabolism.

Try David Siik’s precisely calculated treadmill system to engage your mind, preserve your joints and burn a ton of fat in less than half an hour.

This winter, you may find yourself looking at more indoor cardio. Try these four time-to-sweat workouts.

Oxygen’s fat-melting interval plan will get you ready to feel the heat — and see results!

If you want the best cardio workout, bypass the treadmill and step onto the StepMill.

Use high-intensity interval training to reveal awesome abs. Try these three do-anywhere routines.

Use these four cardio protocols and get leaner, stronger and faster than ever.

Good old-fashioned cardio has been snubbed lately in favor of HIIT. But here’s why adding it into your training mix is exactly what your body needs.

HIIT it hard by incorporating a boxing-based fitness workout into your current cardio routine.

Determining your optimal work-rest intervals for HIIT.

High-intensity interval training (HIIT) is an effective and time-saving training method, but is it possible to overdo it?

Science supports it, your body responds to it and it saves you time. Learn the truth about high-intensity interval training, and hop aboard the interval bandwagon.

Get the most out of your cardio workout with these two high-intensity interval routines.