Task parameters affecting ergonomic demands and productivity of HVAC duct installation.
BACKGROUND: Mechanical installation workers experience work-related musculoskeletal disorders (WMSDs) at high rates. OBJECTIVES: (1) Quantify the ergonomic demands during HVAC installation, (2) identify the tasks and task parameters that generated extreme ergonomic demands, and (3) propose improveme...
| Publicado en: | Work Vol. 49; no. 4; pp. 627 - 640 |
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| Autores principales: | , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
2014
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=103878885&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 103878885 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10519815 3RC jtl: Work issn: 10519815 maglogo: N pubinfo: dt: 2014 vid: 49 iid: 4 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 103878885 100574258 10.3233/WOR-131700 NLM24004765 103878885 ppf: 627 ppct: 13 formats: fmt: @attributes: type: P tig: atl: Task parameters affecting ergonomic demands and productivity of HVAC duct installation. aug: au: Mitropoulos, Panagiotis Hussain, Sanaa Guarascio-Howard, Linda Memarian, Babak affil: Department of Civil, Construction and Environmental Engineering, San Diego State University, San Diego, CA, USA sug: subj: Ergonomics Air Conditioning Task Performance and Analysis Human Musculoskeletal Diseases Videorecording Flexion Extension Clinical Assessment Tools Lifting Time Factors ab: BACKGROUND: Mechanical installation workers experience work-related musculoskeletal disorders (WMSDs) at high rates. OBJECTIVES: (1) Quantify the ergonomic demands during HVAC installation, (2) identify the tasks and task parameters that generated extreme ergonomic demands, and (3) propose improvements to reduce the WMSDs among mechanical workers. METHOD: The study focused on installation of rectangular ductwork components using ladders, and analyzed five operations by two mechanical contractors. Using continuous time observational assessment, the videotaped operations were analyzed along two dimensions: (1) the production tasks and durations, and (2) the ergonomic demands for four body regions (neck, arms/shoulders, back, and knees). The analysis identified tasks with low portion of productive time and high portion of extreme postures, and task parameters that generated extreme postures. RESULTS: Duct alignment was the task with the highest portion of extreme postures. The position of the ladder (angle and distance from the duct) was a task parameter that strongly influenced the extreme postures for back, neck and shoulders. Other contributing factors included the difficulty to reach the hand tools when working on the ladder, the congestion of components in the ceiling, and the space between the duct and the ceiling. CONCLUSIONS: The identified tasks and factors provide directions for improvement. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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