Controlling interfered area in interferential current stimulation by electrode-area patterning
Controlling interfered area in interferential current stimulation by electrode-area patterning
复制标题
通过电极区域图案控制干扰电流刺激中的干扰区域
DOI：
10.1109/embc.2016.7591048
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Jun Ozawa
中科院分区：
文献类型：
--
作者：
S. Bounyong;S. Adachi;T. Yoshimoto;T. Ota;Jun Ozawa
干扰电流疗法是一种同时使用两个或两个以上穿过组织的中频电流的非侵入性疗法。通过控制电流的干扰区域，可以对目标肌肉进行选择性刺激，包括深部肌肉。然而，对干扰区域或电流强度的精确控制仍然是缺乏的。通过基于大腿生物模型的模拟以及电肌肉刺激(EMS)实验，我们研究了电极面积比对改变电流干扰面积的影响。在相同条件下，分别以1：1或3：1的电极面积比对股四头肌和腿肌肌施加电流信号。仿真结果表明，干扰电流密度在面积较大的电极附近减小，而在面积较小的电极附近增加。此外，EMS实验还显示，股四头肌以1：1的面积比使用电极刺激，而腿肌以3：1的面积比使用电极进行刺激。这些结果证明了通过电极面积图案化来控制干扰电流的面积施加的可能性。
Interferential current therapy is a noninvasive therapy using simultaneously two or more medium-frequency currents passing through tissue. By controlling the interfered area of the current flows, selective stimulation is possible in target muscles, including deep muscles. However, controlling the interfered area or the intensity of the current precisely is still lacking. Using simulations based on a biological model of the thigh as well as electrical muscle stimulation (EMS) experiments, we investigated the influence of electrode area ratio in changing the interfered area of the currents. Simulation and experiments were conducted under the same conditions, whereby current signals were applied through electrodes placed on the quadriceps and hamstring with an electrode area ratio of either 1:1 or 3:1. A comparison of the simulation results showed that the interferential current density decreased near the larger area electrode but increased near the smaller area electrode. In addition, the EMS experiment also showed that the quadriceps were stimulated using electrodes in a 1:1 area ratio, and the hamstrings were stimulated using electrodes in a 3:1 area ratio. These results demonstrated the possibility of controlling the area application of interferential current through electrode area patterning.