PSYCHO-PHYSIOLOGICAL INDEXES AND WORKING-ABILITY IN PERSONS WORKING WITH COMPUTERS IN TRADING CENTERS (OBJECTS)
Journal Title: Българско списание за обществено здраве (Bulgarian Journal of Public Health) - Year 2011, Vol 0, Issue 1
Abstract
The study of the work ability of those working with computers in the retail sector has great importance in necessitating the creation of a sensible work-rest balance to prevent fatigue and increase work productivity. 39 administrative personnel and cashiers from the retail sector, with an average age of 29.95+1.1 years and who work mostly with computers, have been examined. The subjects were divided in three groups according to their work schedules: group I (morning shift) working from 8 am to 2:30 pm; group II (afternoon shift) working from 2:30 pm to 9 pm; and group III (regular shift) working from 9 am to 5 pm. Studies have been conducted three days a week (first, third and fifth day), three times a day – at the start, middle and end of the workday. The following indicators were measured: heart rate, blood pressure, eye-hand coordination using a computer software, and amount, speed and accuracy of information internalization using a Landolt table. The vegetative index of Kerdo and the coefficient of resistance have been calculated. The statistical analysis includes variable, alternative and non-parametric analysis using SPSS. The results of the study of the psycho-physiological indicators show certain changes in work ability. More pronounced are the changes in the cardio-vascular and information internalization indicators amongst those in groups I and II, which could be connected with the effect of monotony on the body. The data of the weekly dynamics of work ability confirms the statement of earlier development of neurosensory fatigue amongst those working with computers.
Authors and Affiliations
Boryana Kavaldzieva, Teodora Dimitrova, Darina Naidenova
Keywords
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