This workout was designed for challenging rotational power endurance under fatigue. The first circuit challenges stability under anaerobic fatigue,while the others us heavier resistance as the catalyst for fatigue.
Here Chris takes you through a series of stability exercises for the shoulders, hips and trunk. He also shows you a couple of progressions for each one.
Here are some ways in which you can work on strengthening the shoulder joint while working on stability of the joint using the physio ball. The push ups are progressive so don't do all of them if you are not capable of completing the movements without pain.
![Tony\](http://i.ytimg.com/vi/gje_LuSK25Q/2.jpg "Tony\")
![Benny\](http://i.ytimg.com/vi/tCaxCWQ55zc/2.jpg "Benny\")
