Abstract
Pulsed magnetic stimulation (pMS) effectively stimulates neural, muscular, and other excitable tissues by inducing eddy currents in the body, in accordance with Faraday’s law of electromagnetic induction. This can reduce pain and allow noncontact stimulation of deep tissues, and is therefore used in the examination and diagnosis of cranial neurological disease and in various fields of rehabilitation. We are considering a new application for magnetic stimulation by utilization of its effects on muscle fatigue recovery. Electrical stimulation is generally used in physical therapy to induce electron flow relevant to the electrophysiological, biochemical, and mechanical changes in the body that accompany fatigue, and reportedly promotes recovery from muscle fatigue through various mechanisms. Magnetic stimulation also induces electron flows in the body, through pulsating variation of the internal magnetic fields and eddy currents, and may therefore have similar effects on muscle fatigue recovery.In the present study, we applied electromyogram analysis and muscle-strength measurement to determine the characteristics of low-intensity pMS in terms of effects on muscle fatigue recovery. The results show that low-intensity pMS does indeed promote recovery.
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