I am experiencing knee pain in my left leg. Currently, it feels tight when walking and sharp when flexing my quad.
What is really weird is that I can’t flex my quad properly, on my right side, I can flex it hard and get the rectus femoris to contract and pop out nicely.
But on my left, before my quad gets complete contraction, my knee starts to hurt right under/behind the knee cap and I can’t get complete contraction or my rectus femoris to pop out.
It is a dull tightness in the back of the knee (more superficial) while walking and a more sharp type pain under/behind (more interior) the knee cap when flexing.
I think maybe I hyperextended the left knee while deadlifting and have a mild version of this…
Just a theory though. I tried leg extensions and the last 10 degrees of the top ROM were pretty painful, but my knee can handle squat-type motions that don’t require a powerful contraction at full knee extension.
I would appreciate any advice.