Isn't tendinitis inflammation of the tendon? And aren't quads and hamstrings muscles? Something doesn't make sense to me.

When I had tendinitis in my arm due to too much typing, it was at the elbow and wrist. So wouldn't Catrin's be at the knee and hip? I could understand how tendinitis would result in trigger point in the muscle. Maybe that's what the doc means by quad and hamstring tendinitis.