強さ期間曲線による神経筋疾患診断法

概要

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Strength-duration curves have been measured on 150 cases (600 times) including normal individuals and patients with nervous diseases. The stimulator is the cathode coupled multivibrator combined with the balancing network method by Dr. Honma which eliminates the influence of skin capacitance. The curves which were determined for each threshold by watching muscle twitches were compared with ones drawn electromyographically on the same muscle.It was certified electromyographically that stimulation on a motor point of a muscle, means the stimulation of the nerve under that point. The curves distinguished between nerve and muscle, and between the efferent motor nerve and the afferent nerve, which is very essential in the stretch reflex. The normal curves were coincident with Weiss's formula and chronaxy values were calculated from these figures. Normal chronaxy values as calculated above were shown on some clinically important muscles. Evaluation of Erb's test and the condenser discharged chromaximetry were discussed. The strength-duration curve measurement is recommended as a routine electrodiagnosis, especially in peripheral nerve lesion. Some therapeutic applications were mentioned.
千葉大学の論文
1958-09-28