The effect of over-commitment and reward on trapezius muscle activity and shoulder, head, neck, and torso postures during computer use in the field

Details

• Personal Author:
  Bruno Garza JL ; Catalano PJ ; Dennerlein, Jack T. ; Eijckelhof BHW ; Huysmans MA ; Johnson PW ; Katz JN ; van der Beek AJ ; van Dieen JH
• Description:
  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 hour 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. [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Computers Environmental Monitoring Epidemiology Ergonomics Mental Health Musculoskeletal Diseases Musculoskeletal System Occupational Health Safety
• Keywords:
  Anthropometry Author Keywords: Psychosocial Biomechanics Body-mechanics Body-regions Computer-equipment Exposure-assessment Exposure Assessment Extremities Job-analysis Keyboard-operators MSDs Muscle-function Muscle-stress Musculoskeletal-system-disorders Office-workers Office Ergonomics Physiological-measurements Posture Psychological-factors Repetitive-work Sociological-factors Task-performance VDT Video-display-terminals

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• ISSN:
  0271-3586
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Massachusetts ; OSHA Region 1 ; OSHA Region 10 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  56
• Issue:
  10
• NIOSHTIC Number:
  nn:20043138
• Citation:
  Am J Ind Med 2013 Oct; 56(10):1190-1200
• Contact Point Address:
  Jack T. Dennerlein, Northeastern University, 6 Robinson Hall, Office 308F, 360 Huntington Avenue, Boston, MA 02115
• Email:
  j.dennerlein@neu.edu
• Federal Fiscal Year:
  2014
• NORA Priority Area:
  Healthcare and Social Assistance ; Services
• Performing Organization:
  Harvard University, School of Public Health, Boston, Massachusetts
• Peer Reviewed:
  True
• Start Date:
  20080901
• Source Full Name:
  American Journal of Industrial Medicine
• End Date:
  20130831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:d8891b670288413f9b7384d90be0bdc7a68248bb50a965b455944bc06b50b0293cec243920787aa2181596aea957657ada94d0429ce828f0169feb3eb120a419
• Download URL:
  https://stacks.cdc.gov/view/cdc/195141/cdc_195141_DS1.pdf
• File Type:
  [PDF - 422.48 KB ]