Adarq.org

Here is something I noticed.

I have jumper's knee in my left knee. My right knee doesn't give any pain anymore.

When I flex my left quad, the VMO and the VL flex at nearly the same time.
When I flex my right quad, the VMO clearly flexes before the VL.

It is my understanding that the VMO works to stabilize the knee. I have a hypothesis that part of the reason why I have jumper's knee in the left knee is because of this firing pattern. I think I need to work on getting my VMO to fire first, like it does in my right quad.

I guess when I jump, the VMO contracts slightly before the rest of the quad, acting to stabilize the knee and prevent it from injury. Could it be that since my left quad's firing pattern is a little off, it is aggravating my injury to some extent? Or rather, could it be it is letting the rest of my quad put more tension on my patellar tendon?

I've made a video to show what I mean below. It should be at 1080p once it's done processing:

<a href="http://www.youtube.com/watch?v=G2neCEbA6Pw" target="_blank">http://www.youtube.com/watch?v=G2neCEbA6Pw</a>





I'd appreciate any insight, and maybe some of you will find this interesting.

What happens if you try to hyperextend your knee. Like really really extend it and push the knee "back"? I have found out that when I do it the VMO fires much more intense (you have to be with your feet on the ground to feel it)

I do feel my VMO like that, but I'm wondering if it means anything if the VMO fires first (like my right leg) or not.

If I try what you said, it still doesn't fire ahead of time in my left leg.