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Determination of Proper Monitor Height based on the Musculoskeletal Load and Preference during VDT Monitoring Tasks  

Lee, Joongho (ROKAF 15th Seoul Air Base)
Song, Young Woong (Department of Occupational Health, Catholic University of Daegu)
Na, Seokhee (Department of Industrial and Management Engineering, POSTECH)
Chung, Min Keun (Department of Industrial and Management Engineering, POSTECH)
Publication Information
Journal of Korean Institute of Industrial Engineers / v.32, no.3, 2006 , pp. 236-241 More about this Journal
Abstract
Monitor height is one of the key factors in the VDT workstation design. Most of the previous studies have focused on traditional VDT workplace where the operators performed data entry or word processing tasks using single monitor. This study aimed to suggest proper monitor height when the main task was monitoring information from different number of information sources. Twelve male students participated in three experiments: single information source (one monitor), two information sources (one monitor and one CCTV), and three information sources (one monitor, one CCTV and a window). Subjects performed monitoring tasks for 10 minutes with 3 different monitor center heights : 89.0 cm (Low), 111.3 cm (Middle), and 124.8 cm (High). Surface EMG signals of five neck muscles, subjective discomfort ratings, preference, and working postures were recorded. Results indicated that the middle height was proper for one monitor condition, but the low monitor height was recommended for more than two information sources.
Keywords
Monitor Height; Monitoring Task; VDT Workstation Design; Control Room Design;
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