In TODAY.com's Expert Tip of the Day, a trainer explains how incorporating HIIT into a weekly workout routine can boost one's metabolism and help with weight loss.

HIIT workout founded by a Japanese Olympic coach that uses periods of intense exercise and rest to burn calories.

Burn fat with a 25-minute interval walk. Brisk bursts and a hill push keep your heart rate high and results coming.

If you are looking for a way to change up your routine, opt for these HIIT workouts that you can do at-home without equipment. Everyone from sports medicine docs, to fitness buffs to cardiologists are ...

Ease into exercise with “Japanese walking,” a popular 30-minute interval training regimen that alternates bursts of speed with a walk at a normal pace.

HIIT workouts are meant to be fast and furious. They rely on explosive exercises like burpees, high knees, kettlebell swings, sprints, and other moves that spike your heart rate and make you sweat — ...

New research from Edith Cowan University shows that a single bout of weight training or HIIT can boost anti-cancer myokines and reduce breast cancer cell growth in survivors.

On TikTok, workout tips abound — some credible, some dubious. And recently, you may have been hearing about something called sprint training, which falls somewhere between 12-3-20 treadmill workouts ...

Interval running condenses the powerful effects of regular running into shorter, high-intensity bursts. Research shows it can ...

The phrase “putting the hammer down” commonly refers to drivers smashing the accelerator pedal to pick up a burst of speed, often to beat a waning yellow light. Runners use this idiom in much the same ...