We are, I trust, all but universally familiar with the knee jerk, or patellar, reflex. A doctor taps the patellar tendon with a rubber mallet, and our leg kicks forward in response. The reaction is ...

There are lots of things kids don’t like about doctor’s visits; shots, blood tests and throat swabs top the list. One thing they love is having their knee reflexes checked. A reflex is an involuntary, ...

There are lots of things kids don’t like about doctor’s visits, with shots, blood tests and throat swabs topping the list. But one thing they love is having their knee reflexes checked. A reflex is an ...

Following our clinical observation of tonic responses in response to the knee jerk in infants at very high risk for cerebral palsy (VHR infants), we systematically studied tonic responses, clonus, and ...

A 29 year-old man developed low back pain radiating to the right anterior thigh. Examination showed an absent right knee reflex, weakness of right hip adduction and knee extension, and loss of ...