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
John Ball (priest) editorial staff. John Ball appears in the 1954 historical novel Katherine by Anya Seton. Ball made a star appearance in the Newbery Medal-winning 2002 novel "". He was a priest, as he usually is, and was assisting a character by the name of Bear in the Peasants' Revolt of 1381. John Ball is referenced several times in T. H. White's "The Once and Future King", most prominently in the fourth book, "The Candle in the Wind". In the final chapter (14), King Arthur muses on his failure to unite England. King Arthur tries to understand what forces are at work