A medicine ball is also commonly used by athletes who have sustained an injury, and seek rehabilitation. They are also extensively used by secondary schools as a fitness aid, by lifting the ball, or performing different exercises with the ball incorporated to increase the strain on a particular muscle.
What is A Swiss Ball?
A Swiss ball is a ball constructed of elastic rubber with a diameter of around 55 to 85 cm (22 to 34 inches). It is used in physical therapy and exerc...