WHY: Raises your heart rate while also working your glutes and legs. HOW: Standing in front of the chair with your chest up and belly braced, step your right foot onto the seat, then the left. Step your right foot back to the floor, followed by your left. This is 1 rep. Do 5-15 reps on each side. To make the move harder, raise your knee to your chest as you step up, and drive your opposite arm to the sky. WHY: Keeps the cardio element of the workout going while strengthening your upper body. HOW: Kneeling in front of the chair, angle your body forwards and place your hands on either side of the seat. Keep your torso long and belly braced as you lower your chest towards the seat, as low as you can, then push back up to the starting position. This is 1 rep. Do 5-15 reps. To make the move harder, come up onto your toes.