The association between nocturnal trapezius muscle activity and shoulder and neck pain
The association between nocturnal trapezius muscle activity and shoulder and neck pain
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夜间斜方肌活动与肩颈疼痛的关系
DOI：
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发表时间：
2004
影响因子：
3
通讯作者：
R. Westgaard
中科院分区：
文献类型：
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作者：
P. Mork;R. Westgaard
该研究调查了夜间肌肉活动与肩颈疼痛之间的可能联系。60名女性受试者参加了这项研究，33名受试者根据过去6个月的肩颈疼痛报告被归类为疼痛患者。肌电图（EMG）活动监测双侧从所有的记录。包括26名受试者（17名疼痛受试者）的三角肌、肱二头肌和手部屈肌肌电图记录，以提供评价肌电记录的比较基础。受试者之间的肌肉活动量存在相当大的差异;然而，一些受试者在整个假定的睡眠期间呈现连续的低水平活动模式。被归类为疼痛折磨的主题有显着更高的活动水平和更长的持续时间比无痛主题的肌电活动。三角肌的活动明显多于肱二头肌，而肱二头肌和手部屈肌的活动水平和持续时间与肱二头肌相似。夜间活动与疼痛加重不相关。我们认为，夜间肌肉活动是一个指针的生理机制，有助于某些形式的肩部和颈部疼痛，如肌肉痛，但夜间肌肉活动可能不会随便牵连在疼痛诱导过程。
The study investigated the possible association between nocturnal trapezius muscle activity and shoulder and neck pain. Sixty female subjects participated in the study, 33 were classified as pain-afflicted on the basis of shoulder and neck pain reports for the previous 6 months. Electromyographic (EMG) activity was monitored bilaterally from the trapezius in all recordings. EMG recording of the deltoid, biceps, and hand flexors was included for 26 subjects (17 with pain) to provide a comparative basis for evaluation of the trapezius recordings. There was considerable variation in the amount of muscle activity between subjects; however, some subjects presented a continuous, low-level activity pattern throughout the presumed sleep period. Subjects classified as pain-afflicted had significantly higher activity level and longer duration of trapezius EMG activity than the pain-free subjects. The deltoid had significantly more activity than the trapezius, while the biceps and the hand flexors presented similar activity level and duration as the trapezius. Nocturnal trapezius activity was not associated with pain exacerbation the same night. We suggest nocturnal trapezius muscle activity is a pointer to physiological mechanisms that contribute to some forms of shoulder and neck pain, such as trapezius myalgia, but nocturnal muscle activity may not be casually implicated in the pain-induction process.