The influence of occupational heat exposure on cognitive performance and blood level of stress hormones: a field study report
| Autor: | Farideh Golbabaei, Somayeh Farhang Dehghan, Mostafa Hosseini, Adel Mazlomi, Mohammad Ansari, Marzieh Abbasinia, Somayeh Mahmoud Khani |
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| Rok vydání: | 2016 |
| Předmět: |
Adult
Male Working hours Blood level Epinephrine Hydrocortisone Wet-bulb globe temperature Physiology Iran 010501 environmental sciences Heat Stress Disorders Positive correlation 01 natural sciences Developmental psychology 03 medical and health sciences Cognition 0302 clinical medicine Study report Stress Physiological Occupational Exposure Humans 030212 general & internal medicine Effects of sleep deprivation on cognitive performance Safety Risk Reliability and Quality 0105 earth and related environmental sciences Analysis of Variance Public Health Environmental and Occupational Health Middle Aged Heat stress Stroop Test Psychology Automobiles Safety Research Hormone |
| Zdroj: | International Journal of Occupational Safety and Ergonomics. 23:431-439 |
| ISSN: | 2376-9130 1080-3548 |
| Popis: | This article aimed to investigate the effect of heat stress on cognitive performance and the blood concentration of stress hormones among workers of a foundry plant.Seventy workers within the exposed (35 people) and unexposed (35 people) groups were studied. The wet bulb globe temperature (WBGT) index was measured for heat stress assessment. The cognitive performance tests were conducted using the Stroop color word test (SCWT) before and during working hours. For the assessment of the serum level of cortisol and the plasma level of adrenaline and noradrenaline, blood samples were taken during working hours from both groups.Only for SCWT III was there a significant relationship between heat stress and test duration, error rate and reaction time. The laboratory test results revealed significantly higher concentrations of cortisol, adrenaline and noradrenaline in the exposed subjects than in the unexposed group. There existed a positive correlation between cortisol, adrenaline, noradrenaline and WBGT index and also test duration and reaction time of SCWT III, and number of errors of SCWT I, SCWT II and SCWT III during work.Heat stress can lead to an increase in the blood level of stress hormones, resulting in cognitive performance impairment. |
| Databáze: | OpenAIRE |
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