Set your stopwatch for 30 seconds and get ready to work as hard as you can for each interval in this workout. You’re going to do a series of exercises for 30 seconds, interrupted by 30-second sprint intervals. You can do these sprints on a treadmill, bike or elliptical, use a jump rope, or simply just run place in as fast as you can — the options are endless, so don’t feel like you need a gym (or even need to leave the house, really).
Your goal is to complete the eight-minute circuit four times for a quick, cardio-challenging workout. Ready, set, sweat!