stand against wall, squat to 90 degrees maintaining wall contact, press buttocks into wall and hold isometrically.
Stand against the wall with feet apart, crossed the arms forward holdind opposite shoulder. Squat to 90 with maintaing the contact with wall, press the buttocks in the direction of wall using legs hold. Release the push to starting position and repeat.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.
