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Diadynamic current in physical therapy

Diadynamic current is a low frequency current. It can be semi-wave and full-wave sinusoidal current, 50-100 Hz frequency. Combining frequency and strength and adding constant galvanic direct current you can have a few modulations.

  • Modulation 1 – 100 Hz frequency has a good analgetic effect and sympathicus blockage. It is used in treating painful conditions which result in a vegetative system balance disorder.
  • Modulation 2 - 50 Hz frequency has a stronger analgetic effect and blocks sympathicus better than modulation 1. It affects the connective tissue toning, which is a very important post-injury process.
  • Modulation 3 – this is a combination of modulations 1 and 2. It strongly affects edema and hematoma, lessening the cross striated muscle tonus, and removing pain.
  • Modulation 4 – represents a combination of modulation 1 with added low-strength galvanic impulses, and modulation 2. It has a strong and long-lasting analgetic effect, so it is also called electroanalgesia.

It is used in treating painful syndromes and extra-articular rheumatism. Some modulations can be combined (like 1 and 4) for a stronger effect. Diadynamic current is led to the human body via cup-like or vacuum electrodes. There are several methods : transregional (at painful spots on the affected nerve), paravertebral or segmental, and vasotropic.

Application lasts 4 - 6 minutes with reversing the poles halfway through. If there are multiple application spots, optimal period of application is 15-20 minuta. Diadynamic current is used daily, with stronger pain up even to 2 times per day. The treatment usually lasts 10-20 days.

When not to use diadynamic current:
  • acute inflammation
  • active bone, joint, and other organ tuberculosis
  • malign illnesses
  • diseases that cause cachexia
  • decompensated heart condition
  • hemorrhaging or hemorrhaging-prone condition
  • metal in the tissue (after the injury, endoprosthetics, osteosynthesis etc.)
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