When you want to really get your heart pumping, there’s nothing like a cardio workout. But even a few minutes on the treadmill or elliptical can leave us feeling like hamsters on a wheel, and ending a workout early certainly won’t accomplish the burn we desire. Thankfully, there are plenty of other cardio workouts that don’t require stepping on the dreadmill. Follow along as Jaime McFaden, a personal trainer at Grokker, leads this 20-minute cardio routine complete with jumping jacks, mountain climbers, and chair squats. It’s impossible to get bored because you’ll switch up the moves every minute. Once you complete one circuit, repeat it, then finish off with the cool-down. Ready to get sweaty? Just press play. Here’s the full recap: Perform each move for
