Developing a Framework for Assessing Muscle Effort and Postures During Computer Work in the Field: The Effect of Computer Activities on Neck/Shoulder Muscle Effort and Postures

Details

• Personal Author:
  Blatter BM ; Bruno Garza JL ; Dennerlein, Jack T. ; Eijckelhof BHW ; Huysmans MA ; Johnson PW ; Raina SM ; Rynell P ; van der Beek AJ ; van Dieën JH
• Description:
  The present study, a part of the PROOF (PRedicting Occupational biomechanics in OFfice workers) study, aimed to determine whether trapezius muscle effort was different across computer activities in a field study of computer workers, and also investigated whether head and shoulder postures were different across computer activities. One hundred twenty participants were measured continuously for two hours each while performing their own computer work. Keyboard activities were associated with the highest intensity of left and right trapezius muscle efforts, and mouse activities were associated with the smallest variability in left and right trapezius muscle efforts. Corresponding trends in head and shoulder postures included that the greatest head flexion and left and right shoulder internal rotation was observed during keyboard activities, and that the smallest variability in head flexion, head lateral tilt, and right shoulder internal rotation was observed during mouse activities. Identifying which muscle efforts and postures are different across computer activities is the first essential step for developing prediction rules for muscle efforts and postures, which can be used to link muscle efforts and postures to musculoskeletal symptoms in epidemiological studies. [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Computers Musculoskeletal Diseases Musculoskeletal System Occupational Health Safety
• Keywords:
  Author Keywords: Office Work Biomechanics Exposure Assessment MSD Musculoskeletal Disorders Office Workers Posture Task Trapezius Upper Extremities Upper Extremity

  More +
• ISSN:
  1051-9815
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Proceedings
• 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:
  41
• NIOSHTIC Number:
  nn:20056475
• Citation:
  Work 2012 Feb; 41(Suppl 1):2377-2380
• Contact Point Address:
  J.T. Dennerlein, Department of Environmental Health, Harvard School of Public Health, 665 Huntington Avenue, Boston, MA, 02115, USA
• Email:
  jax@hsph.harvard.edu
• Federal Fiscal Year:
  2012
• NORA Priority Area:
  Healthcare and Social Assistance ; Services
• Performing Organization:
  Harvard University, School of Public Health, Boston, Massachusetts
• Peer Reviewed:
  False
• Start Date:
  20080901
• Source Full Name:
  Work. IEA 2012: 18th World congress on Ergonomics - Designing a sustainable future, February 12-16, 2012, Recife, Brazil
• Supplement:
  1
• End Date:
  20130831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:3a6a0fdbdbd0817ed007684bfa4c4197b230c8e3c1942263578399c6a7af2fdde9b3a16b998bdaa231690420f26096f892198a2a0c4c2190c244ca2bb380253c
• Download URL:
  https://stacks.cdc.gov/view/cdc/214079/cdc_214079_DS1.pdf
• File Type:
  [PDF - 73.87 KB ]