I've reposted this video in Slow Mo so you can appreciate the reflex arc and how the quick stretch to the patella tendon sends a message to the spinal cord and quickly (but with a little delay) sends a message back to the quads to contract(protect from the stretch).

Listen to the Ortho Eval Pal Podcast Show on any podcast station or click here to get to my Website: http://www.buzzsprout.com/325448

Be sure to SUBSCRIBE to our channel and LIKE our videos.

#kneeexam#OrthopedicExam#OrthoEvalPal