This is how you do it
Start in a seated position on the floor with your knees bent and feet spread shoulder width. Place your hands behind your hips in a wider than shoulder width fashion.
Brace and raise your hips by flexing your triceps, legs and glutes.
Raise your right hand and left foot.
Reach your right hand across your body to touch the left foot.
Lower the right hand and left foot to the starting position.
1.This is a slow tempo movement and not meant to be rushed.
Repeat using the left arm and right leg.