Split jacks

Muscles worked

You need

How to do it

1. Stand in a split stance, one foot forward and one back, with the opposite arm raised overhead.
2. Jump and switch your legs in mid-air, landing softly with the other foot in front, while your arms swap positions like a sprinter's - front arm sweeping back, back arm swinging up.
3. Keep the stance long and the rhythm springy.
4. Opposite arm, opposite leg, every time - once the coordination clicks, it runs itself.