2 min read
Electrotherapy – Use of Electric Current in Treatment
Felix Weber
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Diets Premium Expert • 25.09.2026
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Scientifically reviewed by a clinical dietitian:
This article has been peer-reviewed for adherence to IŻŻ, WHO, and PTGiP clinical nutritional standards.
| Diets Premium Expert Felix Weber | min read 2 min | Scientifically reviewed by a clinical dietitian 25.09.2026 |
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Key Takeaways
Electrotherapy constitutes a widely employed tool in intricate patient therapy that aims to utilize low-voltage electric currents for therapeutic purposes, comparable to those generated by our bodies.
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Transcutaneous electrical nerve stimulation (TENS) via pulsed currents – neurophysiological mechanisms and clinical applications
Transcutaneous electrical nerve stimulation (TENS), a therapeutic modality developed during the 1960s, operates on the neurophysiological gate control theory proposed by Melzack and Wall. According to this framework, electrical stimulation of fast-conducting A-beta nerve fibers modulates and attenuates the transmission of nociceptive signals carried by slow-conducting C-fibers, which relay pain sensations from peripheral receptors to the dorsal horn neurons of the spinal cord. This inhibitory effect arises from synaptic competition within a shared neuronal circuit, where predominant A-beta fiber activation effectively "closes the gate" to pain impulses. Additionally, TENS therapy triggers an endogenous release of opioid peptides—particularly endorphins—within central nervous system structures, further amplifying its analgesic properties. Currently, this method serves as a cornerstone in the management of chronic pain syndromes of diverse origins and is also employed in skeletal muscle rehabilitation through neuromuscular electrical stimulation.
Kotz current therapy – a Russian approach to skeletal muscle electrostimulation
The technique pioneered by Kotz involves the application of controlled electrical impulses designed to activate normally innervated skeletal muscles. Its clinical utility spans both the rehabilitation of hypotrophic muscles that have atrophied due to prolonged immobilization and the augmentation of training regimens for fully functional muscles. It is critical to note, however, that this modality is not applicable to muscles exhibiting partial or complete denervation. A defining advantage of this approach is its virtually pain-free nature, rendering it a viable therapeutic choice for a diverse patient population.
Direct galvanic current: properties and applications in physiotherapeutic interventions
Direct galvanic current represents a form of electrical current characterized by a consistent direction of flow and stable intensity over the duration of its application. This modality is extensively employed in medical procedures such as iontophoresis and therapeutic galvanization. During the treatment, an active pharmaceutical agent—typically an anti-inflammatory compound, such as a specialized ointment or gel—is positioned beneath one of the electrodes, facilitating its transdermal delivery under the influence of a controlled electric field. As a result, the bioactive components penetrate significantly deeper into the epidermal and subcutaneous tissue layers compared to conventional topical application methods.
The precise mechanisms by which electrotherapy influences the human body and why its effects are scientifically substantiated
The human body operates as an intricate biological network wherein continuous micro-scale bioelectrical processes serve as the cornerstone for the seamless functionality of every cell, tissue, and organ. These inherent electrical impulses facilitate intercellular signaling, govern metabolic regulation, and sustain the homeostatic balance essential for maintaining physiological health. However, exposure to external stressors—such as chronic overuse injuries, mechanical trauma, prolonged oxidative stress induced by poor dietary habits, or sedentary behavior—triggers a progressive deterioration of cellular membranes alongside disruptions in ionic conductance. The cumulative effect is a diminished cellular energy potential, manifesting as fatigue, delayed regenerative capacity, and heightened susceptibility to organ dysfunction. Within this framework, the application of externally administered, precisely modulated electrical currents emerges as a pivotal therapeutic intervention, enabling the restoration of membrane polarization integrity, enhancing adenosine triphosphate (ATP) synthesis, and initiating reparative pathways within compromised tissues.
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