Answer-
It's actually called "a large exercise ball"!! The one I have is pretty good, and cost under $20. Many different companies make them and you can find them at any large sporting goods store. Mine says "Genuine Altus Athletic" stamped on the ball.
There is a game called Hooverball which uses a large heavy ball. I think Hoover's doctor invented it to give Hoover more exercise.
The fitness ball has several other names. A common name is the exercise ball. Other names are the Swiss ball, birth ball, gym ball, and stability ball. It is used for physical therapy, weight training, and exercising.
i have had an exercise ball for a long time now and i really like it. an exercise ball conforms to your back, allowing you to exercise and flatten your abs without straining your back.
It is possible to do an upper body workout with an exercise ball. You can do push ups, chest flys, and back extensions using an exercise ball.
An exercise ball is very good for toning your body. There are several exercises you can do with an exercise ball to tone and strengthen your body. Most exercise balls come with some directions for toning exercises.
Using an exercise ball helps loosen the muscles and bones around the pelvis. This helps when delivering a baby, and there are many different exercise options using an exercise ball.
The best equipment to use when working on your abs is a large exercise ball, a vertical knee raise machine, and a regular exercise floor mat.
Eye-Ball Paul.
Bakugan
For a desk, it is recommended to use an exercise ball that is 55-65 centimeters in diameter.
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Exercises one can do with an exercise ball include Ball Crunch, Ball Push-Up, Ball Shoulder Rotation, Ball Bridge and Ball Leg Curl. Many guides and exercises can be found on the website Ball Exercises.