Sit on the floor with your feet flat on the ground. Now touch the bottoms of your feet to each other and let your legs fall open as far as possible. Now pull your feet as closely to your body as possible with your hands.
Measure the distance between your heels and your groin; this is your score. Carry out the same exercise on the other side to measure the difference.
Stretch your groin muscles with some exercises. Then repeat the test again and compare the results.