Lower into a wide-leg squat, back straight, knees in line with ankles. Engage lower ab muscles and jump, reaching arms overhead. Reset with feet shoulder-width apart and repeat. Do 10 to 12 reps.
Perfect your form: Reach hips back and push weight into heels in the squat.
Dial it down: Skip the jump; focus on the squats.
Amp it up: Do 5 pulses before each jump.