FBG: you can mobilize your own kneecap to make it easier for your muscles (VMO and friends) to hold it in the right position. Mobilization will also ease up the pressure from the IT Band fibers that join into the retinaculum that wraps your knee.
Ask your PT to show you how. I try to do mine when I'm watching TV, cuz then I can hold my kneecap in the position longer without suddenly remembering something really important I need to do instead.
Your PT will also show you how to know when you DON'T need to mob anymore.
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