Brief Medical History Overview
Quad Muscles wont engage without resistance - why?
Im trying to rehab my chronically dislocating right knee, Ive had ~150 dislocations/subluxes in the past 3 years. VMO was completely invisible, my OS thought it was paralysed. Finally got VMO engaging, using combination of e-stim and exercises designed to engage it.
Have good strength in quads now in terms of leg extensions with weights etc..
My question is this: I can extend my leg no problem with weights on the end and I can feel the muscles engaging and my kneecap feels stable. But if I do it with no weights I have no control at all in the last few degrees of extension and I feel as though Im about to dislocate. This causes problems walking, as every time I extend my leg I feel it trying to dislocate.
Any ideas why the muscles wont engage without resistance?