(if using a wall) or straight on the ground if using a doorway or pole. as you gain strength, you can move closer to the wall, pole or doorway.
sit on a chair or stool with wheels.
take the injured leg and straighten it out in front of you with heel staying on the ground.
slowly bend the knee of the injured leg so the chair starts to move forward.
try to move the chair from one side of the room to the other.
if pain occurs longer than two weeks, you should seek medical help. 