Clinical value of studying strength-duration curves using intramuscular (needle) electrodes in patients with lumbosacral radicular syndromes
Feĭzullaev, E.A.
Zhurnal Nevropatologii i Psikhiatrii Imeni S.S. Korsakova 79(4): 398-401
1979
ISSN/ISBN: 0044-4588 PMID: 220825 Document Number: 149112
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.