Exercise ball a chair because of ergonomic considerations or biomechanical reasons. This large plastic ball, known as a "birth ball", can also be used during labour to aid the descent of the fetal head into the pelvis. Sitting in an upright position will also aid fetal positioning and is more comfortable for the woman. Sitting on the ball with arms placed on a bed, table or otherwise sturdy object for support and gently rocking the hips may help the woman during contractions and aid the natural physiological process of birth. Exercise ball An exercise ball, also known as a Swiss Ball, is
Wiffle ball brand should be capitalized, and it should only be used in reference to a product currently manufactured by The Wiffle Ball, Inc." In science, it is frequently used by marine biologists as a size reference in photos to measure corals and other objects. Wiffle ball Wiffle ball is a variation of the sport of baseball designed for indoor or outdoor play in confined areas. The game is played using a perforated, light-weight, resilient plastic ball and a long, typically yellow, plastic bat. Miniature versions of baseball have been played for decades, including stickball, improvised by children, using everything from rolled