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中频电因其频率较低频电高,无电解作用,对皮肤的刺激小,可以使人耐受较大的电流,另外中频电可有一部分以电容的形式穿透组织,可以相对降低人体的阻抗,所以中频电的作用深度比低频电深。为提高疗效,中频电疗常以低频调制或差频的形式应用于临床,使其不但作用深度增加,而且同时具有低频电和中频电的治疗作用。故中频电疗的效果比纯低频电好,应用比较广泛,
IF because of its lower frequency of high frequency, no electrolysis, the stimulation of the skin is small, people can tolerate a larger current, while the other part of the IF can penetrate the body in the form of capacitance can be relatively lower body Impedance, so the role of medium-frequency electric depth than the low frequency. In order to improve the curative effect, IF electrotherapy is often applied to clinic in the form of low-frequency modulation or difference frequency, which not only increases the depth of action, but also has the therapeutic effect of low-frequency electricity and medium-frequency electricity. Therefore, the effect of intermediate frequency electrotherapy is better than the pure low frequency, which is widely used,