Advanced kettlebell HIIT combines explosive strength work with high-intensity cardio for a demanding full-body workout.

This express full-body HIIT workout uses weights and a no-repeats format to deliver maximum power and efficiency in minimal ...

Kevin Hart transformed his fitness with sprinting, HIIT, and full-body exercises like cleans and presses to keep fit in his ...

High-intensity interval training is one of the best ways to pack a lot of exercise into a short period of time. HIIT workouts are so efficient because they alternate short bursts of very intense ...

For your speed workout, try a fartlek run/walk: After a walking or easy running warmup, run hard for 30 seconds or as long as ...

Plus, exactly how to get results from whatever activity you love to do.

In 1996, Dr. Izumi Tabata published a groundbreaking study on high-intensity interval training, or HIIT, and its effects on aerobic (VO₂ max) and anaerobic capacity in young, physically active men ...

Steady-state cardio may be more helpful for beginners looking to manage their weight, while HIIT is a great way to boost ...

Burpees are a popular exercise, but they can put a lot of stress on your joints. You can swap burpees for other lower-impact ...