STARTING POSITION:
Lie on the floor face down and place your hands slightly wider than shoulder width apart while holding your torso up at arms length. Support your weight on your toes and hands. Keep the shoulders far from the ears retracting your shoulder blades. Contract your pelvic floor and core while keep your body straight. Keep the head facing the floor. Squeeze your abdominal and oblique muscles.
MOVEMENT:
Raise your right arm in front of you without any other movement of your body. Return to the starting position in a smooth movement and alternate with the other arm.
TIPS: Don't let the hips go down.