I cannot believe I did not post this years ago! I saw it in an aerobics class today at a New York Sports Club. Grab a bar with a weight that will give you a workout and no pain. Bars(not barbells) come in eight, 12, 16, 18, or 22 pounds, usually. Keep it behind your waist, holding it with the palms of your hands facing back. Stand with legs shoulder-width apart. Relax your shoulders. Your knees ares slightly bent for balance. Bring the bar up with both arms about two inches away from your hips. Go back to starting position. Repeat for four sets of ten 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.