STARTING POSITION:
Stand straight with your feet shoulder width apart and with your hands on either side of your hips.
MOVEMENT:
Slowly move your right knee towards the chest and then do an abduction of the hip, so the knee is pointing to the right side. Return to the starting position in a smooth movement. Repeat the movement for the specified amount of repetitions and then repeat with the other leg.
TIPS: The exercise key is quality over quantity. The trick is to perform the exercise using proper form.