
sit on swiss ball with hips and knees at ninety degrees, extend one leg forward while maintaining balance and arm position.
Sit on the Swiss ball, with feet touches the floor and hips-knees at 90-90 degrees and arms elevate to 90 degree by the side. With maintaing the balance, straight one leg forward. Lower down the leg to starting position and repeat.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.