
supine trunk rotation with hip flexion targeting oblique abdominals through alternating twisting movements
Lie on back with both knee straight forward, cross the hand and place behind the head. Lift both feet off the floor such that hips knee at 90-90 degree, with maintaing the position lift the head, shoulder and upper trunk off the floor and twist to one side then other side. Back to starting position and repeat alternate.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.