STARTING POSITION:
Lie flat on your back with your legs extended and slightly separated from the floor. Bend your elbows around 90º. Contract your pelvic floor and core.
MOVEMENT:
Through your abs, lift yourself and at the same time move your right knee towards the torso while you exhale. When you lift your right knee, advance your left arm. Return to the starting position in a smooth movement while you inhale and repeat with the other side.
TIPS: Make the ascent in a fast movement and go slowly when you descend.