I try and do this, but I was born with knees that were literally turned outwards 45 degrees more than they should have been, so when i was literally 3 months old they performed an operation in which they broke both of my legs and had to turn them inwards and cast them for 6 months. Granted I don't see to many symptoms of that surgery to this day, if I go MUCH below 90 degrees I experience SEVERE discomfort...