Movement: Begin with your hands on the floor, keeping your back straight, slowly and carefully raise your feet off the ground and out to your sides. The further you are able to split your legs apart, the easier your leverage in the exercise will be.
Strength criteria: Frog stands and tuck planches.
Caution: Be careful not to allow your weight to fall forward over your hands, as this could clearly jeopardize the health and beauty of your face.