Wall Sit position - Rolling up and down back
Benefit:Relief from lower back aches
Where to put it: From lower to mid back
Instruction: Place in the midway between your shoulder blade and buttocks. Sit against the ball with the device between you and the wall, with you knees at a 90 degree angle. Roll up and down slowly - about 6 inches each way.
Where to use it: Against any available solid wall
Duration: As long as it feels comfortable