I came upon anowner's manual for the Bosu Ball, designed by David Weck, and the next series of post will have information from that manual. For more information, see www.Bosu.com. It is always great to get off a plateau, and the Bosu ball may be ideal for exercising balance, which we usually do not concentrate on, and strength.
This exercise works your core abdominal and back muscles, and then your gluteus minimus and maximus and leg muscles.
(Curved part up) Kneel with one knee centered on top of the dome and hands on the floor under you. Lift opposite arm and leg straight out. Do four sets of 10 repetitions and repeat for the other arm and leg.
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.