Zh Nevropatol Psikhiatr Im S S Korsakova. 1979 ; 79(4): 398-401.

[Clinical value of studying strength-duration curves using intramuscular (needle) electrodes in patients with lumbosacral radicular syndromes]

FeÄzullaev EA.

The paper deals with the results of a force-duration curve comparative study which was accomplished-in 20 patients with the aid of usual skin and acupunctural point electrodes. The spicular needle introduced painlessly into the muscles studied, served as an active electrode connected by a fine cord to a clamp of the electric pulser. In order to determine the force-duration curve, 10 rectangular impulses of a different length at a constant frequency of 1 hz were used. The results demonstrated that the determination of the force-duration curve with the aid of acupuncture is a more sensitive and precise method of study inasmuch as it permits to receive genuine values of the current in the test area.