If you are like me, cardio just isn’t your thing. Whether it’s endless hours on a treadmill or running around the neighborhood, classic cardio just doesn’t excite me. That’s why I love this workout from trainer Jen Heward. It uses plyometric moves to get that same cardio calorie burn but in a way that aids lean muscle growth as well. This workout will have you sweating and breathing hard, without having to hit the stair master.