The effect of work-rest schedules and type of task on the discomfort and performance of VDT users.
Consideration of the literature survey indicates that video display terminal (VDT) operators tend to have a high incidence of musculoskeletal problems, visual fatigue, and job stress. Although a number of ergonomic improvements in workstation design and work environment can help to reduce these prob...
| Publicado en: | Ergonomics Vol. 46; no. 5; pp. 455 - 466 |
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| Autores principales: | , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
4/15/2003
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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=106700738&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106700738 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00140139 ERO jtl: Ergonomics issn: 00140139 maglogo: Y pubinfo: dt: 4/15/2003 vid: 46 iid: 5 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 106700738 106700738 2004032208 10.1080/0014013021000047557 NLM12745696 106700738 ppf: 455 ppct: 11 formats: tig: atl: The effect of work-rest schedules and type of task on the discomfort and performance of VDT users. aug: au: Balci R Aghazadeh F affil: Department of Industrial and Manufacturing Systems Engineering, 3128 CEBA, Louisiana State University, Baton Rouge, LA 70803 sug: subj: Computer Terminals Time Factors Workload Comfort Productivity Male Students, College Adult Descriptive Statistics Questionnaires Workload Measurement Multivariate Analysis of Variance Statistical Significance Neck Back Thorax Eye Pathology Vision Disorders Elbow Arm Comparative Studies Mathematics United States Occupational Safety and Health Administration United States Ergonomics Visual Analog Scaling Analysis of Variance Post Hoc Analysis Mental Processes Human Adult: 19-44 years Male ab: Consideration of the literature survey indicates that video display terminal (VDT) operators tend to have a high incidence of musculoskeletal problems, visual fatigue, and job stress. Although a number of ergonomic improvements in workstation design and work environment can help to reduce these problems, a proper work-rest schedule deserves consideration since it is easily applicable and inexpensive. The objective of this study was to compare the work-rest schedules for VDT operators considering data entry and mental arithmetic tasks. An experiment was conducted with 10 male college students as participants. The methodology included a discomfort questionnaire and performance measures. The independent variables were the work-rest schedule (60-minute work/10-minute rest, 30-minute work/5-minute rest, and 15-minute work/micro breaks) and the type of task (data entry and a mental arithmetic task). The results were analysed using multiple analysis of variance followed by separate analyses. The 15/micro schedule resulted in significantly lower discomfort in the neck, lower back, and chest than the other schedules for data entry task. The 30/5 schedule followed by 15/micro schedule resulted in the lowest eyestrain and blurred vision. Discomfort in the elbow and arm was the lowest with the 15/micro schedule for the mental arithmetic task. The 15/micro schedule resulted in the highest speed, accuracy, and performance for both of the tasks, compared with the 60/10 and 30/5 schedules. The data entry task resulted in significantly increased speed, accuracy, and performance, and lower shoulder and chest discomfort than the mental arithmetic task. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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