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
Andrew Ball (Townsville pioneer) when Black asked Ball to explore the country to the north, to find a suitable port at Cleveland Bay from which to handle station produce. Ball, accompanied by Mark Watt Reid and two Aboriginal stockmen, set out in April 1864 and eventually found the mouth of what later was called the Ross River. The site Ball selected for a wharf and port was on Ross Creek, a tributary of Ross River. Lying beneath the huge sandstone outcrop of Castle Hill, the location reminded Ball of Castletown, the capital of the Isle of Man, and that was what he called the