MYOFASCIAL TRIGGER POINTS SHOW SPONTANEOUS NEEDLE EMG ACTIVITY

被引:364
作者
HUBBARD, DR [1 ]
BERKOFF, GM [1 ]
机构
[1] UNIV CALIF SAN DIEGO,DEPT NEUROSCI,LA JOLLA,CA 92093
关键词
MYOFASCIAL TRIGGER POINTS; FIBROMYALGIA; EMG; MUSCLE SPINDLES;
D O I
10.1097/00007632-199310000-00015
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Monopolar needle electromyogram (EMG) was recorded simultaneously from trapezius myofascial trigger points (TrPs) and adjacent nontender fibers (non-TrPs) of the same muscle in normal subjects and in two patient groups, tension headache and fibromyalgia. Sustained spontaneous EMG activity was found in the 1-2 mm nidus of all TrPs, and was absent in non-TrPs. Mean EMG amplitude in the patient groups was significantly greater than in normals. The authors hypothesize that TrPs are caused by sympathetically activated intrafusal contractions.
引用
收藏
页码:1803 / 1807
页数:5
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