Sit on the floor and place your feet on the ground, hip-width apart.
Place your hands behind you, but turn your fingers inward, so that they’re pointing towards your back.
Lift your hips off of the floor by squeezing your glutes and pressing through your heels and palms.
As you do this, lift your right hand off the floor and twist your body so that your right arm comes up and over your head (towards the left hand that is on the floor).
Bring your right arm back down to the ground as you return to the starting position, where your hips are about an inch off the ground.
Repeat on the opposite side.

Mobility workout: move better and prevent injury with mobility exercises