Effect of Aviation Snip Design and Task Height on Upper Extremity Muscular Activity and Wrist Posture

Details

• Personal Author:
  Anton D ; Cook T ; Gerr F ; Meyers A ; Reynolds J ; Rosecrance JC
• Description:
  Hand tools described as ergonomic in design are intended to reduce exposure to physical risk factors associated with work-related musculoskeletal disorders. Additionally, using the right tool for the job is believed to reduce exposure and, consequently, risk of disease. Sheet metal workers frequently use a cutting tool called aviation snips when fabricating and installing ductwork. The purpose of this laboratory simulation study was to determine the effect of (1) aviation snip design; and (2) work height on muscle activity, wrist posture, and user satisfaction among sheet metal workers. We hypothesized that specific aviation snips designs would be most appropriate for use at specific heights. Twenty-three sheet metal workers used three different designs of aviation snips to make curved cuts in sheet metal placed both at waist height and shoulder height. Conventional circular snips, straight snips, and an alternate design of offset snips were used. Upper extremity muscle activity was measured with surface electromyography, wrist posture was measured with electrogoniometry, and user satisfaction was rated by the participants on a survey. Statistically significant effects of snip design and task height on muscle activity, wrist posture, and user satisfaction were observed. However, no snip was preferable for all dependent variables. Work height had a greater effect on muscle activity and wrist posture than snip design. Field studies are indicated to determine the long-term effect of snip design on physical risk factors and risk of musculoskeletal disorders [Description provided by NIOSH]
• Subjects:
  Communicable Disease Control Construction Industry Construction Materials Ergonomics Hazardous Substances Musculoskeletal Diseases Musculoskeletal System Occupational Health Personal Protective Equipment Protective Clothing Risk Assessment Risk Factors Safety Safety Management Workplace

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• Keywords:
  Author Keywords: Construction Construction Construction-equipment Construction-industry Construction-materials Construction-workers Disease-control Disease-incidence Disease-prevention Disease-transmission Diseases Equipment-reliability Hand-injuries Hand-protection Hand-tools Hand Tools Hazards Health-hazards Health-protection Health-standards Injuries Intervention Effectiveness Muscular-disorders Musculoskeletal-system Musculoskeletal-system-disorders Musculoskeletal Disorders Risk-analysis Risk-factors Safety-education Safety-helmets Safety-measures Safety-monitoring Safety-personnel Safety-practices Safety-programs Work-analysis Work-environment Work-operations Work-practices Worker-health Workers Workplace-monitoring Workshops

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• ISSN:
  1545-9624
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Colorado ; Iowa ; Minnesota ; OSHA Region 5 ; OSHA Region 7 ; OSHA Region 8
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  99-113
• Volume:
  4
• Issue:
  2
• NIOSHTIC Number:
  nn:20035203
• Citation:
  J Occup Environ Hyg 2007 Jan; 4(2):99-113
• Contact Point Address:
  Dan Anton, 138 IREH, Oakdale Campus, Department of Occupational and Environmental Health, The University of Iowa, Iowa City, IA, 52242-5000
• Email:
  dan-anton@uiowa.edu
• Federal Fiscal Year:
  2007
• Performing Organization:
  Colorado State University, Fort Collins, Colorado
• Peer Reviewed:
  True
• Start Date:
  19940701
• Source Full Name:
  Journal of Occupational and Environmental Hygiene
• End Date:
  20050630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:be781e5467bdd10796603fe4df192700d11171a4f2316be38b0a8d5d80acb0ec985ad58066b8d7f16c4be0688edfb4d8c86c87ff014cced48ef8ae904db996be
• Download URL:
  https://stacks.cdc.gov/view/cdc/187131/cdc_187131_DS1.pdf
• File Type:
  [PDF - 3.37 MB ]