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Thursday, July 30, 2020 | History

2 edition of durability of the therapeutic effects of high frequency currents found in the catalog.

durability of the therapeutic effects of high frequency currents

W. F. Somerville

durability of the therapeutic effects of high frequency currents

by W. F. Somerville

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  • 20 Currently reading

Published by A.Siegle in London .
Written in English

    Subjects:
  • Electrotherapeutics.

  • Edition Notes

    A paper read before the British Electro-Therapeutic Society, April 22, 1904.

    Statementby W.F. Somerville.
    The Physical Object
    Pagination12p. :
    Number of Pages12
    ID Numbers
    Open LibraryOL19102935M

      It utilises two high frequency currents which are slightly out of phase, and are passed through the skin at the same time where they are set up so that their paths cross and simply interfere with each other. This interference gives way to a beat frequency which has the characteristics of low frequency stimulation deep under the skin.   All the high-frequency treatments carried out in beauty salons came directly from applications developed by the medical profession. Doctors applied high-frequency currents both generally and locally but only local treatments are currently used in beauty salons. Above: A table of high-frequency treatment methods used in the medical profession.

    Search the world's most comprehensive index of full-text books. My library. The high-frequency current which gives rise to the high rate of oscillation is also known as Tesla current and frequently used in facial and scalp therapy. The rapid oscillation produces heat and does not instigate any muscular contractions.

      Chapter 13 Introduction to low-frequency currents Deirdre M. Walsh CHAPTER CONTENTS Introduction Stimulation of a nerve using electrical currents Stimulation parameters of low-frequency currents Documentation of parameters Types of current Waveform Frequency Pulse duration Duty cycle Amplitude/intensity Continuous, burst and . The interrupted or asymmetric alternating types of current of less than impulses frequency, called Faradic current, are known to produce definite effects upon the musculature, and the many works on electro-physiology give full information as to the effects and action of these currents .


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Durability of the therapeutic effects of high frequency currents by W. F. Somerville Download PDF EPUB FB2

Physiological and therapeutic uses of low frequency(F/G) currents Analgesic effects as endongenous pain suppressors are released and act at different levels to control pain Analgesic effects from the stimulation of certain neurotransmitters to control neural activity in the presence of pain stimuli Faradic is high frequency current( Tesla first recognized the wonderful therapeutic possibilities of High-frequency Currents and prophesied that they would ultimately supersede the older systems based upon the therapeutic use of Drugs; clinical results recorded during the past five years.

[Purpose] The aim of this study was to determine the effects of high-frequency current therapy on the abdominal obesity levels of young women. [Subjects] Twenty-two women with abdominal obesity were randomly allocated to either an experimental group (n 1 = 10) or a control group (n 2 = 12).[Methods] The experimental group subjects received high-frequency current therapy for the abdominal Cited by: 3.

The value of the high-frequency currents is well recognized in America and in Europe, and it is the aim of this author so to present the subject as to extend their use among English-speaking physicians, especially in Great Britain.

The treatise gives a plain account of the character, method of. Diathermy is a therapeutic treatment most commonly prescribed for muscle and joint conditions. It uses a high-frequency electric current to stimulate heat generation within body tissues.

The aim of this study was to investigate the effects of low frequency (LF: 10 HZ) TENS and high frequency (HF: HZ) TENS on hyperalgesia and edema when applied before the serotonin (5-HT.

Medium Frequency Currents IFT it is the medium frequency current in interferential is used for significant physiological effects of medium frequency. PROPERTIES Frequency ranges from. High frequency, also known as the Tesla high frequency current, was first developed in the late s by renowned scientist Nikola Tesla.

While it can be used in various ways, before the invention of "modern" antibiotics, it was largely used for medical purposes, such as. HIGH FREQUENCY CURRENT.

High frequency is a type of current that is used on acneic skin to speed the healing of active breakouts and on very oily skin to dry out the skin. It has a germicidal and healing effect on skin. Unlike galvanic, high frequency uses a different type of current – an alternating current (also called Tesla pulse current).

HIGH TENS 8. LOW TENS 9. MODULATION HVPC RUSSIAN CURRENT REBOX DEVICES Pulse type: Train Pulse mode: Unipolar Shape: Rectangular Pulse frequency: Hz Pulse duration: 50– μs Amplitude: 1– μA Type of Electrode: Probe   cases, introducing the current of the LCS or the LBS facilitates the physiologic action.

Whether the facilitation is directly involved in the action or is catalytic thereto is presently unknown. Demodulation is the process of separating the audio frequency or the video signal from Physiological and therapeutic effects of high frequency.

High-frequency treatment. High-frequency treatment uses low-current high-frequency alternating currents, delivered via a glass electrode. Because the high frequency current converts some of the oxygen in the air into ozone, the treatment has a germicidal action, and is also drying and warming.

Consequently, the treatment is used to aid healing and also to help desquamation (the skin's natural. The main active factor in all methods of high-frequency therapy is considered to be an alternating current that either directly enters the patient's body (darsonvalization, ultratonotherapy) or occurs in the tissues and media of the organism under the influence of alternating high-frequency electromagnetic fields or their constituents (i.e.

Electric and magnetic fields) high, ultra-high and. high-frequency current an alternating electric current having a frequency of 10, or more cycles per second; it produces no muscular contractions and does not affect the sensory nerves.

Synonym(s): d'Arsonval current, Tesla current high-frequency current (hī-frē'kwĕn-sē kŭr'ĕnt) An alternating electric current having a frequency of. Direct High Frequency – is an external application that produces a germicidal effect through ozone formation of the skin’s surface, via the glass electrode, where the air sparks between the electrode & the skin combines with oxygen.

Use for Direct High Frequency: Acne-type lesions using an argon gas electrode for a “sparking” treatment. A large body of literature exists on the response of tissues to electromagnetic fields, primarily in the extremely-low-frequency (ELF) and microwave-frequency ranges.

In general, the reported effects of radiofrequency (RF) radiation on tissue and organ systems have been attributed to thermal interactions, although the existence of nonthermal effects at low field intensities is still a subject. Excerpt from High Frequency Currents: Their Production, Physical Properties, Physiological Effects, and Therapeutical Uses The favourable reception, gratefully acknowledged, already accorded to this work has led to the belief that the hope expressed in the first edition has been realized, and that the value of the judicious employment of high frequency currents in the treatment Author: H.

Evelyn Crook. The frequency response was time-dependent. 50% of the effect was present at 2 minutes, % of the effect was present at 4 minutes and further time spent on the frequency had no additional effect. This is the only frequency combination that has been studied in an animal model but the effects and the implications are important.

In The Electrical Engineer of JanuI note an article by Mr. Swinton, referring to my experiments with high frequency currents. Swinton uses in these experiments the method of converting described by me in my paper before the American Institute of Electrical Engineers, in May,and published in The Electrical Engineer of July 8,which has since been employed.

George A. Williams, Thomas M. Aaberg Jr, in Retina (Fourth Edition), Diathermy. Diathermy is produced by high-frequency, MHz, alternating electrical current that generates heat because of the impedance (resistance) of the tissue through which it is passed.

The heat created by the diathermy energy coagulates tissues. The histologic picture seen after diathermy depends on the. Among these forms of medium frequency electrical stimulation, interferential current (IFC) is a device frequently used clinically, with a higher tissue penetration and less discomfort when compared to low-frequency current.

(7,12) IFC therapy is the application of alternating medium-frequency current (4, Hz) amplitude modulated at low frequency ( Hz).Diadynamic current is a low frequency current.

It can be semi-wave and full-wave sinusoidal current, Hz frequency. Combining frequency and strength and adding constant galvanic direct current you can have a few modulations. Modulation 1 – Hz frequency has a good analgetic effect and sympathicus blockage.

It is used in treating painful conditions which result in a vegetative.The current is so small that, in the opinion and involuntary experience of the writer, the discharge of even a very large coil cannot produce seriously injurious effects, whereas, if the same coil were operated with a current of lower frequency, though the electromotive force would be much smaller, the discharge would be most certainly injurious.