Exercise ball standard exercises, such as a push-up, on an unstable surface can be used to increase activation of core trunk stabilizers and in turn provide increased trunk strength and greater resistance to injury. Fitness Experts and some doctors also recommend sitting on an exercise ball instead of an office chair. That is based on the theory that the abdominal and back muscles are constantly engaged and active to maintain proper posture and balance on the ball. There is no scientific evidence of those benefits occurring by just sitting without additional exercises. However, some people warn against using a Swiss ball as
Bouncy ball soccer ball patterns, and so forth) are offered by many companies. Due to their low cost per unit, bouncy balls with logos or other designs are sometimes used as promotional merchandise. Bouncy balls may, by means of fluorescence, chemiluminescence, or motion-activated LEDs, emit light; such balls are called glow balls. Balls composed of many rubber bands, or bouncy balls made of borax, glue, and cornstarch, are sometimes homemade. Bouncy balls are often used in juggling. Bouncy ball A bouncy ball or rubber ball is a spherical toy ball, usually fairly small, made of elastic material which allows it to bounce