. Principles of electro-medicine, electrosurgery and radiology : a practical treatise for students and practitioners. With chapters on mechanical vibration and blood pressure technique . t has a frequency offrom 10 to 120 cycles per minute; v/hile the rapid sinusoidal from 120to 2000 cycles per minute. Alternating current from the lighting circuit is usually 110 volt and60 cycle (per second), and is, therefore, a strong and very rapid sinu-soidal current. This current can be used by lowering the voltage witha reliable rheostat, but as the frequency of this current is controlled bythe revolutio
. Principles of electro-medicine, electrosurgery and radiology : a practical treatise for students and practitioners. With chapters on mechanical vibration and blood pressure technique . t has a frequency offrom 10 to 120 cycles per minute; v/hile the rapid sinusoidal from 120to 2000 cycles per minute. Alternating current from the lighting circuit is usually 110 volt and60 cycle (per second), and is, therefore, a strong and very rapid sinu-soidal current. This current can be used by lowering the voltage witha reliable rheostat, but as the frequency of this current is controlled bythe revolutions of the generator, at the electric power plant, it is im- 44 Anthony Matijaca possible to lower the frequency, and such an arrangement will alwaysdeliver a \eT\ rapid sinusoidal current of 3600 cycles per minute (or 60cycles per second). Application of the Sinusoidal Currents Sinusoidal current, being of an alternating character, has very littlepolar effects. The slow sinusoidal current, due to the gradual rise and fall in volt-age and a change in polarity, has great stimulating powers, producingpainless rhythmical contractions and relaxations of the involuntarymuscular Sinusoidal Current Apparatus. Since the action of this current is similar to the physiological functionof the involuntary muscular fibres, it is an excellent remedy for theaffections of the involuntary organs, especially stomach, intestines,bladder and uterus, and is very soothing in excessive sensibility. This current gives excellent results in constipation, diabetes, gastritis,gastrectasis, headaches, infantile uterus, insomnia, locomotor ataxia,lumbago, melancholia, muscular atrophy, obesit}^ ovarian neuralgia,paralysis, segmental analgesia, prostatic hypertrophy, etc., etc. The rapid sinusoidal current ma}^ be employed in all cases wherefaradism is usually employed, and gives better results than faradism ineliciting vertebral reflexes and stimulating the muscular tissue. This current is beneficial
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