Also known as Swiss balls fit balls yoga balls or physio balls. Care Setup Tips Ultimate Balance Ball Chair with Swivel. Exercise Ball Chart Stability balls are unstable which challenges and engages core muscles while Stability balls may be used alone or in exercises using other types of strength training equipment such as dumbbells and ankle. Yoga ball exercise chart . 55 cm 21 for a 65 cm 25 ball. 2Locate the ball plug and inflation adapter. Read the label on your Exercise Ball to confirm the ball size. This yoga ball chair is the ideal combination of exercise ball and office chair alternative. Use your measurement to get the yoga ball in an appropriate size. Squeeze the ball to engage your upper body. A yoga ball otherwise known as a physio stability or fitness ball is a large inflatable ball that can help you add intensity to many different workout techniquesSimilar to a trampoline a yoga ball strengthens your muscles by forcing them to react to the instabilit...