Reciprocal inhibition in cerebral palsy.
We studied reciprocal inhibition by recording the changes in firing probability of single motor units of the tibialis anterior muscle following stimulation of low-threshold afferents in the posterior tibial nerve. In 15 patients with cerebral palsy, the inhibition was as great or greater than normal. We found no evidence that group I afferents produce "reciprocal facilitation" in cerebral palsy.
Berbrayer
D
D
Playfair Neuroscience Unit, Toronto Western Hospital, University of Toronto, ON, Canada.
Ashby
P
P
D000344:Afferent Pathways / Q000503:physiopathology; D002547:Cerebral Palsy / Q000503:physiopathology*; D004558:Electric Stimulation / Q000379:methods; D006801:Humans; D009046:Motor Neurons / Q000502:physiology*; D009119:Muscle Contraction; D009132:Muscles / Q000294:innervation* / Q000503:physiopathology; D012016:Reference Values; D012026:Reflex, Stretch; D013979:Tibial Nerve / Q000503:physiopathology*