A Randomized Controlled Trial of Chair Interventions on Back and Hip Pain Among Sewing Machine Operators: The Los Angeles Garment Study

Details

• Personal Author:
  Harrison RJ ; Janowitz I ; Rempel DM ; Ritz BR ; Wang PC ; Yu F
• Description:
  OBJECTIVE: Determine whether an adjustable chair with a curved or a flat seat pan improved monthly back and hip pain scores in sewing machine operators. METHODS: This 4-month intervention study randomized 293 sewing machine operators with back and hip pain. The participants in the control group received a placebo intervention, and participants in the intervention groups received the placebo intervention and one of the two intervention chairs. RESULTS: Compared with the control group, mean pain improvement for the flat chair intervention was 0.43 points (95% CI = 0.34, 0.51) per month, and mean pain improvement for the curved chair intervention was 0.25 points (95% CI = 0.16, 0.34) per month. CONCLUSIONS: A height-adjustable task chair with a swivel function can reduce back and hip pain in sewing machine operators. The findings may be relevant to workers who perform visual- and hand-intensive manufacturing jobs. [Description provided by NIOSH]
• Subjects:
  Ergonomics Manufacturing And Industrial Facilities Musculoskeletal Diseases Musculoskeletal System Occupational Health Safety Surveys And Questionnaires
• Keywords:
  Assembly-line-workers Back-injuries Equipment-operators Factory-workers Machine-operation Machine-shop-workers Mathematical-models Musculoskeletal-system-disorders Posture Questionnaires Statistical-analysis

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• ISSN:
  1076-2752
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  255-262
• Volume:
  50
• Issue:
  3
• NIOSHTIC Number:
  nn:20034715
• Citation:
  J Occup Environ Med 2008 Mar; 50(3):255-262
• Contact Point Address:
  David Rempel, MD, University of California, San Francisco, Department of Medicine, 1301 S 46th Street, Building 163, Richmond, CA 94804
• Email:
  davidrempel@ucsf.edu
• Federal Fiscal Year:
  2008
• Performing Organization:
  University of California - Los Angeles
• Peer Reviewed:
  True
• Start Date:
  20020930
• Source Full Name:
  Journal of Occupational and Environmental Medicine
• End Date:
  20060929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:79d042d2d68e06fb977fc8235435c70895d99edb8648e358c1316a128598491a2a3cd5c047921ee9d87ef3c5286a6cbfbf746bad7b64ae22d676b2d51f914324
• Download URL:
  https://stacks.cdc.gov/view/cdc/186821/cdc_186821_DS1.pdf
• File Type:
  [PDF - 413.44 KB ]