EMGバイオフィードバック法により軽快した痙性斜頸の1例 : 三角筋, 僧帽筋弛緩の導入から

概要

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This paper reported a female case of spasmodic torticollis that is remitted by EMG biofeedback therapy. The EMG-BF session for 30 min was repeated twice a week and the effect was evaluated by the lowest value of action potential of the surface EMG and its total area. Anatomically, M. deltoideus does not directly correlate with M. sternocleidomastoideus but its relaxation brings not only relaxation of upper arm and shoulder but also secondarily relaxation of cervical and upper part of the body. In this case, instead of M. sternocleidomastoideus, we selected M. deltoideus as the initial target of EMG-BF therapy, to which relaxation was easily introduced. Relaxation of M. deltoideus was reduced to 35% of that before treatment. M. trapezius, the secondary relaxing muscle, was relaxed after 7 sessions. Full relaxation of M. sternocleidomastoideus, which was the ultimate goal, was achieved only after 14 sessions, although its action potential reduced to 12.5% as a result of relaxation of M. deltoideus and trapezius. To start the EMG-BF therapy from muscles which are easily relaxed has advatages that it is not only easy for patients but also ready to introduce to physicians who are not experienced in this therapy. Detailed further study will be required.
日本心身医学会の論文
1990-12-01