Follow along with trainers Jacqueline Kasen and Gerren Liles in the workout video above, or if you're ready to HIIT it solo, read the instructions below for a self-guided workout.

IF YOU’RE LOOKING for a style of workout ... 45 seconds of work, and 15 seconds of rest for a quick and dirty full body workout. It’s all gas, little breaks for this killer five-minute HIIT ...

Start getting stronger and sweat smarter with this fast-paced lower body bodyweight workout, which is part of the Women’s ...

Before the workout, it can be helpful to spend five minutes warming up and perhaps another five cooling down at the end. For all its benefits, HIIT should not stand alone in your weekly workout ...

includes bursts (typically 30 seconds to a few minutes) of sharp exertion followed by a rest period. According to experts, HIIT workouts create a hormonal response that makes you burn calories for ...

Dance it out and sweat with this cardio combo featuring body rolls, squats, and plenty of high-impact exercise.