Keep scrolling for 21 great high-intensity workout options to try that range from five to 45 minutes and include all different protocols. Note that since HIIT has such a broad definition we used ...

The workout, devised by The Body Coach app founder, Joe Wicks, is a 28-minute HIIT workout that uses a set of dumbbells.

which consists of 20 exercises done for 45 seconds each with 15 seconds of rest in between. The moves were all low-impact... HIIT is usually associated with exercises like burpees, squat jumps ...

Navaretta recommends the following HIIT workout, where you'll do each exercise for 30 seconds, with 15 seconds of rest in between. Each cycle will take just under four minutes, and you'll want to ...