Well, I haven't seen you move, so I can only speak in general terms.
Lots of our popular training modalities are in the saggital plane, and this includes core training. Western athletic culture generally neglects the coronal and transverse planes, especially for core training. What this means is that we're not as stable as we should be in the core when trying to execute athletic movements. A bit of instability in the core gets turned into huge torques in our outer extremities due to the lever arm effect.
If you are experiencing knee pain, there's a good chance its due to instability, and it could be due to sub-optimal core stability, as I explained above. It would be wise to go back and make sure your core training regimen is complete, covering all the planes of motion, and contains several types of anti-rotational exercises.
I personally suffered from this, though I was quite strong otherwise. Properly training my core has relieved a lot of back and knee pain issues that had dogged me for years.
jimlang wrote: Bunch a burpee lovin' dorks...