期刊
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY
卷 83, 期 2-3, 页码 235-238出版社
SPRINGER-VERLAG
DOI: 10.1007/s004210000284
关键词
pain adaptation; muscle rest; EMG gaps; subjective reactions; daily work
The electromyographic (EMG) activity patterns of Is female supermarket employees reporting neck and shoulder pain were compared with those of 6 of their female colleagues rt pol-ting no pain when doing cash-register work. It was found that the EMG activity of the trapezius muscle tended to show a lack of low and high levels among pain subjects, and that the time the trapezius muscle was at rest was longer in the group reporting Ilo pain. In the non-dominant side, the muscle rest time was significantly longer (P < 0.05) in the group reporting no pain, and this group also showed a larger EMG activity difference between the dominant and non-dominant sides, indicating a less static bilateral muscle activation. Self-reports of negative experiences (stressed, exhausted and tense) were somewhat higher in the group reporting pain, while positive experiences during work (concentrated, stimulated and happy) appeared to be similar in the two groups of supermarket employees.
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