Please note that the content of this book primarily consists of articles
available from Wikipedia or other free sources online. An exercise
equipment is any equipment used for physical exercise. Exercise balls
are available in a number of forms. There are large Pilates balls
specifically suited to Pilates exercises. Medicine balls are somewhat
larger than a basketball and are used as a training aid for a variety of
different exercises. There are also a number of different types of
timing balls used in developing accuracy and timing of martial arts
strikes and kicks. An exercise ball can also be used to help treat low
back pain and to prevent future back pain episodes. The ball helps by
strengthening and developing the core body muscles (the belt of
abdominal and back muscles) that help to stabilize the spine (or
vertebral column). An exercise ball creates instability to the exercise
that normally wouldn't be there, forcing the body (and the core) to keep
balanced. This strengthens the muscles that are doing the balancing.
