Full-shift and task-specific upper extremity muscle activity among US large-herd dairy parlour workers

Details

• Personal Author:
  Douphrate DI ; Fethke NB ; Gimeno Ruiz de Porras D ; Hagevoort R ; Nonnenmann MW ; Rodriguez A
• Description:
  U.S. large-herd dairy parlor workers experience a high prevalence of musculoskeletal symptoms in the upper extremity. The purpose of this study was to estimate and compare full-shift and taskspecific muscle activity of the upper extremity among parlor workers. Surface EMG data was recorded continuously throughout a full work shift for each participant (n=60). For a subset of participants (n=33) muscular effort was estimated for milking task cycles. Lower muscle activity levels and higher percent muscular rest was observed among rotary parlor participants as compared to herringbone and parallel parlor participants for anterior deltoid, forearm flexor and forearm extensor muscles. These findings suggest rotary parlors may offer workstation designs or work organizational dynamics which may be more beneficial to the health and performance of the worker, as compared to parallel or herringbone parlors. Practitioner Summary: Study findings suggest milking parlour configurations present different biomechanical demands on workers which may influence worker health and performance. Our findings will enable more informed decisions regarding both engineering (e.g. parlour configuration or milking equipment) and administrative (e.g. work organisation) control strategies for large-herd milking parlours. [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Ergonomics Musculoskeletal Diseases Musculoskeletal System Occupational Health Safety Shift Work Schedule
• Keywords:
  Animal Husbandry Workers Author Keywords: Agriculture Ergonomics Biomechanics Equipment Design Intervention Intervention Effectiveness MSD Musculoskeletal Disorders Shift Work Task Analysis Upper Extremities Work Organization

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• ISSN:
  0014-0139
• Document Type:
  Text
• Funding:
  Cooperative Agreement ; Grant
• Genre:
  Journal Article
• Place as Subject:
  Iowa ; New Mexico ; OSHA Region 6 ; OSHA Region 7 ; Texas
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  60
• Issue:
  8
• NIOSHTIC Number:
  nn:20048956
• Citation:
  Ergonomics 2017 Aug; 60(8):1042-1054
• Contact Point Address:
  David I Douphrate, University of Texas Health Science Center at Houston, School of Public Health in San Antonio, Texas, USA, 7411 John Smith Drive, Suite 1100, San Antonio, TX 78229
• Email:
  david.i.douphrate@uth.tmc.edu
• Federal Fiscal Year:
  2017
• NORA Priority Area:
  Agriculture, Forestry and Fishing
• Performing Organization:
  Colorado State University - Ft. Collins
• Peer Reviewed:
  True
• Start Date:
  20030915
• Source Full Name:
  Ergonomics
• End Date:
  20270914
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c3e38f4a0aed1b728e826521b4a03db0b1377a45dd313b3ffbd8fb95f787539baf83bcef0321f2bbf5a26d793df7d0399ada8f7d52642faebe850cb8b15445e3
• Download URL:
  https://stacks.cdc.gov/view/cdc/203568/cdc_203568_DS1.pdf
• File Type:
  [PDF - 1.74 MB ]