Electrophysiological studies in children with paralytic poliomyelitis.
H-reflex latency (H-RL) and H/M ratio were measured in normal children and children with paralytic poliomyelitis of 1-3 years of age. The H-RL was considerably increased in both the involved and uninvolved limbs of the patients, whereas the H/M ratio did not differ. The Mmax value in the involved limb was very low, and therefore, a corrected H/M ratio was calculated for that side only. The corrected H/M ratio was significantly less than the H/M ratio observed in the uninvolved and control limbs. The distal motor latency was also increased in the involved side.
Prakash
U
U
Department of Physiology, Banaras Hindu University, Varanasi, India.
Sinha
A K
AK
Mukherjee
B
B
Katiyar
G P
GP
Dey
P K
PK
D002675:Child, Preschool; D005260:Female; D007839:Functional Laterality / Q000502:physiology; D006181:H-Reflex / Q000502:physiology*; D006801:Humans; D007223:Infant; D007866:Leg / Q000294:innervation; D008297:Male; D009046:Motor Neurons / Q000502:physiology; D011051:Poliomyelitis / Q000175:diagnosis / Q000503:physiopathology*; D011930:Reaction Time / Q000502:physiology*; D012016:Reference Values; D013116:Spinal Cord / Q000503:physiopathology; D009435:Synaptic Transmission / Q000502:physiology*