Low-frequency currents. Diadynamic currents. Diadynamic currents are rectified alternating currents. Also called Bernard’s currents named after the French dentist that discovered them. Diadynamic currents are part of the lowfrequency currents group. They have sinusoidal waveform and frequency set at 50Hz or 100Hz. Several types of diadynamic currents are commonly applied: Types of diadynamic currents 1.DF (diphase fixe) - full wave rectified alternating current - frequency 100 Hz - analgesic and sympatholytic effect - duration of the pulse 10ms 2.MF (monophase fixe) - half wave rectified alternating current - frequency 50 Hz - analgesic effect - duration of the pulse 10ms; duration of the pause 10ms 3.CP (courtes periodes) - rapid alternation between one second of MF current and one second of DF 4.LP (longues periodes) - slow alternation between six seconds of MF current and ten seconds DF 5.RS (syncopal rhythm) - it comprises 1-sec phase of MF, followed by a 1-sec rest phase. - RS is used for stimulation of muscles with preserved innervation Indications - electrostimulations of muscles with intact innervations [RS] - pain syndroms of different origin – neuralgia, neuritis, radiculitis, degenerative joint disease, low back pain, neck pain, epicondylitis [DF, MF, LP,CP] - Reflex Sympathetic Dystrophy Syndrome (RSDS), Raynaud`s disease, [DF] Methods of application 1. local - neuralgia, neuritis, radiculitis, degenerative joint disease, low bask pain, neck pain, epicondylitis 2. in the area of the sympathetic ganglia - Reflex Sympathetic Dystrophy Syndrome (RSDS), Raynaud`s disease, [DF] 3. diadynamophoresis – diadynamic currents are direct currents that`s why they can be used for electrophoresis Contraindications pacemaker, metal implants in the area of treatment, pregnancy, malignant tumor, acute haemorrhage, purulent inflammation, high blood pressure, epilepsy
