Ball: Increases Adductor muscles.

Inflate ball using tube provided to a firm consistency. Sit in a chair which provides good support to your back and your feet are flat on the floor. Place the ball between you knees, as shown in the picture. Squeeze your knees together, hold for a count of 5seconds relax for 10 seconds repeat 10 times.

Repeat this sequence 3 more times.
Do once a day to begin and increase to twice a day as you get stronger.

Abdominal exercises. Lay flat on your back on firm surface, place a pillow under your knees. Suck in your belly button to your spine without raising up from the floor. Hold for 5 seconds rest for 10seconds repeat 10 times once a day. As you get stronger you can increase the number of seconds you hold these exercises and the number of repartitions. Start slowly and gradually increase if you feel any pain discontinue the exercise and consult a Medical professional.