Journal article
Effect of Aviation Snip Design and Task Height on Upper Extremity Muscular Activity and Wrist Posture
Journal of occupational and environmental hygiene, Vol.4(2), pp.99-113
01/01/2007
DOI: 10.1080/15459620601117087
PMID: 17175513
Abstract
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.
Details
- Title: Subtitle
- Effect of Aviation Snip Design and Task Height on Upper Extremity Muscular Activity and Wrist Posture
- Creators
- Dan Anton - University of IowaFredric Gerr - University of IowaAlysha Meyers - University of IowaThomas M. Cook - University of IowaJohn C. Rosecrance - Colorado State UniversityJonathan Reynolds - University of Minnesota
- Resource Type
- Journal article
- Publication Details
- Journal of occupational and environmental hygiene, Vol.4(2), pp.99-113
- Publisher
- Taylor & Francis Group
- DOI
- 10.1080/15459620601117087
- PMID
- 17175513
- ISSN
- 1545-9624
- eISSN
- 1545-9632
- Language
- English
- Date published
- 01/01/2007
- Academic Unit
- Occupational and Environmental Health; International Programs; Epidemiology; Physical Therapy and Rehabilitation Science
- Record Identifier
- 9984363641902771
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