Today's featured exercise is the Airball Hip Tuck. This exercise helps to strengthen the hamstrings. Many female athletes are weaker in the hamstrings in relation to the quadriceps. Start by laying flat on a mat with ankles and feet positioned directly on top of an airball. First, raise the hips up off the floor making the body straight and holding the ball still. Next, squeeze the hamstrings and tuck the ball in toward the body. Then, kick the ball back out with control and repeat. Tip: keep the hips up the entire time and push the hands down on the mat for stability and control.