Pilates and yoga really hellped me too their are a few simple exercises you can do while sitting
on it juat watching tv! Like sitting
on the
ball feet planted
on the floor and move your hips in a clockwise circle for ten, then counter clockwise for ten, or roll your hips back wards as far as you can and forwards as far as you can (so the ball touches your back) my pilates instructor is a physio as well and she recommend them they worked very well for me!! :-) I hope it helps!!