STARTING POSITION:
Lie on your right side and place your right arm under your head and your left hand on your hip. Bend your knees to place them around 90º and bend your hips around 45º. Both legs should be together.
MOVEMENT:
Maintaining the contact between the feet, separate the left knee from the right knee until your left knee points the roof. Exhale during the movement. Return to the starting position in a smooth movement while you inhale. Repeat the movement for the specified amount of repetitions, then switch sides and repeat the exercise.
TIPS: Make sure you only move your legs when you perform the exercise.