Start on your hands and knees with your hands under your shoulders and knees under your hips. Have a resistance band tied in a loop around one foot and hold the other end in the hand on the same side. With your back flat and your neck in a neutral position, tighten your abdominal muscles to maintain this position.
Straighten your opposite arm and leg out (the leg with the band attached). Ensure your body remains in the same position. Do not allow your hips to rotate. Control the movement as you move your arm and leg back in to the starting position, and then repeat.
