Faktor-Faktor Yang Berhubungan Dengan Waktu Reaksi Rangsang Cahaya Pada Tenaga Kerja Yang Terpapar Panas Di PT. Baja Kurnia Ceper Klaten

Factors Related to Reaction Time of Light Stimuli on Workers Exposed to Heat at PT.Baja Kurnia Ceper, Klaten.

 Sri Handayani, Suhartono, Nurjazuli

 ABSTRACT

Background : One of the negative impacts from the iron work industry is heat in working environment. The heat stress in the working environment gives the workers additional burden and may result an adverse health effect, especially the metabolism of  their body.  Consequently, it may cause fatigue that causes the decrease of their working productivity. The fatigue may be clearly observed on the basis of the measurement of reaction time of light stimuli. The study aims for determining factors related to reaction time of light stimuli of the employees exposed to heat in PT. Baja Kurnia Ceper, Klaten.

Method : The study used  cross sectional approach. The samples of the study were 43 workers. It was conducted on January – May 2005. Data was collected using measurement of ambient temperature in the production room, measurement of the fatigue with the reaction time of light stimuli, counting of arterial pulse, measurement of body weight/high and interview with respondent. Data was analyzed by using Pearson Product Moment Correlation, Independent t-Test and Multiple Linier Regression

Result : Result of the study indicated that ambient temperature was 30,64⁰C, age was 34,35 on average, nutritional status 19,89 on average, working period was 8,23 on average, the pre-working of reaction time of light stimuli was 352,46 mm/sec on average, and the post-working of reaction time of light stimuli was 500,78 mm/sec on average, while 27 employees were in the condition of health and16 employees were in the condition of not health.

Conclusion : There was a significant correlation between ambient temperature, age, nutritional status,  working period, working burden and reaction time of light stimuli. There was no different  in reaction time of light stimuli in the group of health respondents and un-healthy respondents.

Keywords : temperature, nutritional status, working burden, light stimuli

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