Need a source of renewable energy?
Stand with feet together, arms by sides. Squat low, placing palms on floor in front of feet, directly under shoulders.
A. Kick feet straight behind you, landing in push-up position (balancing on palms and toes, back flat, abs engaged).
B. Jump feet forward to squat.
C. Immediately jump straight up, bringing arms and legs up and out to sides (like a star). Land in starting position.
Do 10 reps.