Here is an exercise for the pectoral and abdominal muscles:
Get a partner and throw a medicine ball. Use a weight that is a challenge and doable for four sets of ten repetitions at least. Once you catch the ball, perform a situp with the ball held in front of your chest. When your partner catches the ball, he or she does the same.
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.