Targets: Abs, obliques, back, hips, glutes, legs
A. Stand with feet more than shoulder-width apart, toes pointed out to sides about 45 degrees, arms by sides.
B. Squeeze glutes and crouch down, keeping knees behind toes. Place palms on ground, hands below shoulders.
C. Jump straight up. Land gently, sinking directly into crouch. Do 5 to 10 reps. Rest a few seconds, then do 1 more set.