STARTING POSITION:
Sit on a chair and place your feet flat on the floor. Place your hands on either side of yout hips.
MOVEMENT:
Maintaining the spine in the same position, raise your right knee as much as you can. Return to the starting position in a smooth movement. Repeat the movement for the specified amount of repetitions, then switch sides and repeat the exercise.
TIPS: The exercise key is quality over quantity. The trick is to perform the exercise using proper form.