This no-equipment HIIT workout involves 45 minutes of high-intensity circuit training broken into 3 15-minute segments, one focusing on abs, one on lower-body and one on cardio. You will need less than 1 hour to complete this workout.
Lots of at-home HIIT workouts are chock-full of plyometric moves (read “lots of jumping”), which is great for some people, but not the best choice for those who may have some problems with their joints. This HIIT workout, which was created by Equinox group fitness instructor Colleen Conlon, is kinder on the joints than most HIIT workouts, since it includes lower-impact moves like side kick throughs and crab toe touches.
This isn’t your regular old leg workout—there are a few exercises in here that we bet you haven’t tried yet, like the runner’s-lunge-to-balance (great for speed and agility) and the corkscrew (a dynamic plank variation that’ll seriously test your core strength). Created by Amy Eisinger, C.P.T., this workout will test your endurance all the way through. And then just when you think you’re done, there’s a cardio burnout at the end that’ll give you one last challenge.