Exercise ball balls have been jumped across at 8.31 seconds.The record for the farthest jump between two Swiss balls was also made by Neil at a distance of 2.3 meters in 2012 A primary benefit of exercising with an exercise ball as opposed to exercising directly on a hard flat surface is that the body responds to the instability of the ball to remain balanced, engaging many more muscles. Those muscles become stronger over time to keep balance. Most frequently, the core body muscles — the abdominal muscles and back muscles — are the focus of exercise ball fitness programs. A major
Medicine ball whilst holding it. Some medicine balls are up to 14" wide and up to 14 lbs weight, or in the form of weighted basketballs. A med ball is used for children training as the best way to overcome fear of free weights exercises. Hippocrates is said to have stuffed animal skins for patients to toss for “medicinal” purposes. Similar large balls were used in Persia in 1705. The term "medicine ball" dates back to at least 1876, in "American Gymnasia and Academic Record", by Robert Jenkins Roberts, Jr. Medicine ball A medicine ball (also known as an exercise ball, a