Characteristics of Spontaneous Electrical Activities at the Trigger Point in a Chronic Shoulder Pain Patient-A Case of Trigger Point on Trapezuis Muscle- / 全日本鍼灸学会雑誌

ABSTRACT

[Purpose] The characteristic of electrical activities recorded at the clinical trigger point was examined.<BR>[Materials] A 26-year-old woman complained of chronic shoulder pain. She had a trigger point near GB 21 (Jianjing, Kensei). The electrical activities were recorded at the trigger point and a non- tender point.<BR>[Results] Electrical activities were detected only when the electrode was located on the trigger point andthere was a subjective dull pain sensation. The amplitudes of electrical activities did not change during psychological stress. [ Conclusion ] These results suggest that the electrical activities were the result of nociceptive reflex.