Lie down on the floor. Lift your legs and have your knees bent at 90 degrees. Place a Swiss ball between your knees. Move your knees from the floor to your right slowly to the floor on your left. Do five sets of 10 repetitions.
Disclaimer: None of the above information can be taken as a substitute for advice from a medical professional such as a physician.
My third book, Pocket Guide to Fitness, is available on www.louizapatsis.com, http://www.authorhouse.com, www.bn.com and http://www.amazon.com. If you look up my name on those Web sites, you will find my other books The Boy in a Wheelchair and Life, Work and Play: Poems and Short Stories.