Cross Body Mountain Climber
Assume a pushup position with your arms completely straight. Lift your right foot off the floor, then bend your right knee and bring it up under your body, toward your left elbow, without changing the arch in your lower back. Lower your leg back to the starting position. Then raise your left foot off the ground and bring your left knee to your right elbow. Alternate back and forth until time is up.
Alternating Split Jump
Stand in a staggered stance with your feet 2 to 3 feet apart, your left foot in front of your right. Keeping your torso upright, bend your legs and lower your body into a lunge position. At the bottom of the movement, your left thigh should be parallel to the ground, and your right thigh should be perpendicular to the ground. Now jump with enough force to propel both feet off the floor. While you're in the air, scissor-kick your legs so you land with your right leg forward and your left leg behind you. Repeat, alternating your forward leg for the duration of the set.
T Pushup
Grab a pair of hex dumbbells with an overhand grip and assume a pushup position, your arms straight. Bend your elbows and lower your body until your chest nearly touches the floor. As you push yourself back up, lift your right hand and rotate the right side of your body as you raise the dumbbell straight up over your shoulder until your body forms a T. Reverse the move and repeat, this time rotating your left side.
Dumbbell Row
Grab a pair of dumbbells, bend at your hips (don't round your lower back), and lower your torso until it's nearly parallel to the floor. Let the dumbbells hang at arm's length, palms inward. Without moving your torso, row the weights upward by raising your upper arms, bending your elbows, and squeezing your shoulder blades together. Keep the dumbbells close to the side of your body at the top of the movement. Pause, lower the dumbbells, and repeat.
Increase your metabolism and tone up faster. Find a fitness class.