Daytime trapezius muscle activity and XXXX of service workers with work stress and low biomechanical exposure.

@entity2701 @entity4048 @entity158
AIM: The study aims to look for an association between trapezius muscle activity and @entity4048 in work situations characterized by work stress and low biomechanical exposure. METHODS: Female subjects (n = 93) were recruited from four occupational groups: health care, shop assistants, banking, and university secretaries. Thirty-eight workers were interviewed and classified as @entity158 by their @entity4048 score in the last 6 months; 55 were @entity158 -free. @entity4048 , bodily state of @entity2701 and fatigue, and subjective exposure assessments were monitored by repeated hourly measurements over 24 hr. Trapezius muscle activity was recorded bilaterally by surface EMG. RESULTS: @entity4048 , perceived @entity2701 , work stress ("stressful environment"), and mental fatigue was augmented over the workday and reduced leisure time. Physical fatigue was low and stable. Thus, work stress appeared to be the dominant exposure associated with @entity4048 . Muscle activity was low and similar for @entity158 and @entity158 -free subjects during working hours. It was unchanged from work to leisure for the @entity158 workers and was significantly reduced for the @entity158 -free group. CONCLUSIONS: Stress-induced shoulder and neck @entity158 is not necessarily associated with elevated trapezius muscle activity, but @entity158 -free workers may benefit from better muscle relaxation in leisure.
