Each 20-minute HIIT session combines fast-paced strength-training ... making this workout plan extremely versatile. "You can do this in a small space or pretty much anywhere," says Kasen.

I ditched cardio for HIIT workouts for 30 days. The shocking results transformed my fitness, energy, and body. Discover all ...

High-intensity interval training involves performing an all-out, exhaustive physical effort for a short time followed by a ...

High-Intensity Interval Training (HIIT) is more than just a fitness trend; it’s a lifestyle change that offers immense health ...

(And when you're done with this session, head back to your Ultimate HIIT homepage for more from the program!) We may earn commission from links on this page, but we only recommend products we back.

(And when you're done with this session, head back to your Ultimate HIIT homepage for more from the program!) ...

Expert trainer Danyele Wilson shares her go-to HIIT session (and it takes just six minutes). Standing for high-intensity interval training, HIIT gets your heart rate up quickly to really challenge ...

Aim for two to three HIIT sessions per week, each lasting 20 to 30 minutes. Incorporate steady-state cardio. Longer, moderate-paced runs, swims, or cycles (think 45 to 60 minutes at a ...

I decided to add one interval training session into my workout plan after my times plateaued. Interval training is all about putting your cardiovascular fitness to the test by switching up how ...

In a five-year Norwegian study looking at 1500 adults, participants were placed into three groups: HIIT, moderate exercise and following the government’s activity guidelines. Those in the HIIT ...

If any area of fitness has seen a rise in popularity in recent memory, it's HIIT (high intensity interval training). Global lockdowns and gym closures over the last year have forced people to turn ...