Abstract:
BACKGROUND:Because of reported associations of psychosocial factors and computer related musculoskeletal symptoms, we investigated the effects of a workplace psychosocial factor, reward, in the presence of over-commitment, on trapezius muscle activity and shoulder, head, neck, and torso postures during computer use. METHODS:We measured 120 office workers across four groups (lowest/highest reward/over-commitment), performing their own computer work at their own workstations over a 2-hr period. RESULTS:Median trapezius muscle activity (P = 0.04) and median neck flexion (P = 0.03) were largest for participants reporting simultaneously low reward and high over-commitment. No differences were observed for other muscle activities or postures. CONCLUSIONS:These data suggest that the interaction of reward and over-commitment can affect upper extremity muscle activity and postures during computer use in the real work environment. This finding aligns with the hypothesized biomechanical pathway connecting workplace psychosocial factors and musculoskeletal symptoms of the neck and shoulder.
journal_name
Am J Ind Medjournal_title
American journal of industrial medicineauthors
Bruno Garza JL,Eijckelhof BH,Huysmans MA,Catalano PJ,Katz JN,Johnson PW,van Dieen JH,van der Beek AJ,Dennerlein JTdoi
10.1002/ajim.22192subject
Has Abstractpub_date
2013-10-01 00:00:00pages
1190-200issue
10eissn
0271-3586issn
1097-0274journal_volume
56pub_type
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journal_title:American journal of industrial medicine
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更新日期:2010-06-01 00:00:00
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journal_title:American journal of industrial medicine
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