lie supine, lift legs and upper body simultaneously while holding swiss ball overhead, then lower with control.
lie on the back with legs straight forward, elevate the arms overhead holding ball. Lift both legs off the floor keeping knees straight and also lift the ball, arms, shoulders, head and upper body off the floor. Lower the whole upper body and legs towards the floor and repeat.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.
