What type of current is present in Diadynamic therapy?
Diadynamic therapy is a type of electrotherapy which uses certain parameters of electric current: sine-wave current at the frequency of 50–100 Hz. The current is primarily to affect nerve tissue, in which it contributes to weakening pain impulses.
What are Diadynamic current?
Diadynamic currents are also called Bernard’s currents based on a sine wave with a frequency of 50Hz. Due to the ease of generation of this current shape, they have been known almost from the beginning of electrotherapy, and their influence on the human body has been thoroughly studied.
What are the three types of current?
They are direct current, abbreviated DC, and alternating current, abbreviated AC. In a direct current, the electrons flow in one direction.
What are sinusoidal currents?
Definition • sinusoidal currents are evenly sine wave alternating currents with a frequency of 50 Hz. • The sine wave or sinusoid is a mathematical curve that describes a smooth repetitive oscillations.
What is the duration of Diadynamic current?
it is monophasic sinusoidal current was developed in the 1950’s,by Bernard (a French Dentist). so it is called also Bernard current. The frequency is operating at 50 Hz with pulse duration 10 msec.
What are the 3 electrical quantities?
It defines the relationship between the three fundamental electrical quantities: current, voltage, and resistance.
What is a sinusoidal current used for?
The main action of the sinusoidal current is to to produce the muscle contraction. If it is applied continuously, tetanic contraction will occur and there is stimulation of both sensory and motor nerves which will produce tingling and needle like sensation.
What is sinusoidal in circuits?
A sinusoidal voltage source (dependent or independent) produces a voltage that varies as a sine wave with time. A sinusoidal current source (dependent or independent) produces a current that varies with time. The sinusoidal varying function can be expressed either with the sine function or cosine function.
Who discovered Diadynamic current?
Diadynamic therapy is an another example for low frequency current rarely used in UK but in mainland Europe has stronger following. it is monophasic sinusoidal current was developed in the 1950’s,by Bernard (a French Dentist).
What is the frequency of Russian current?
Russian currents are alternating currents (AC) at a frequency of 2.5 kHz that are burst modulated at a frequency of 50 Hz with a 50% duty cycle.
What are the 4 basic units of electricity?
Therefore, the 4 basic units of electricity are volts, amps, ohms, and watts.
Why are Diadynamic currents called Bernard’s currents?
Diadynamic currents are also called Bernard’s currents based on a sine wave with a frequency of 50Hz. Due to the ease of generation of this current shape, they have been known almost from the beginning of electrotherapy, and their influence on the human body has been thoroughly studied.
What are the effects of Diadynamic currents on muscle?
In order to elicit vascular reaction also the following sequence may be applied: Diadynamic currents affect the alteration of the muscle tissue excitability. MF current (with the frequency of 50 Hz) causes hypertonia. DF current (with the frequency of 100 Hz) results in reduction of muscle tension.
What is the base of a Diadynamic current?
Diadynamic currents are unidirectional currents, what’s more, until recently, they were applied with the superposition called base – ie the initial direct current polarization. Currently, because of the studies that have not confirmed the effectiveness of this solution, the base has been withdrawn from the application.
What are the different types of didynamic current?
There are four different current available for Didynamic current. Monophase fixe. (MF) Diphase fixe. (DF) Courtes periodes. (CP) Longues periodes. (LP) The two electrodes are applied as a bipolar technique with the anode applied over pain spot and the cathode adjacent to it.