Walk sideways like a crab while keeping your back as straight as possible and as low to the floor as possible like your hips. This is a moving abdominal plank position. Does it seem simple? Try it. Go across the room several times. The take a warm bubble bath to relax your sore muscles! This move is sometimes used in boot camp classes.
Do you want a tougher workout? Speed it up!
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.