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Article Abstract
Background: We sought to evaluate potential mediators of the relationship between heat exposure and traumatic injuries in outdoor agricultural workers.
Methods: Linear mixed models were used to estimate associations between maximum work-shift Wet Bulb Globe Temperature (WBGT) and post-shift vigilance (reaction time) and postural sway (total path length) in a cross-sectional sample of 46 Washington State tree fruit harvesters in August-September 2015.
Results: The mean (SD) WBGT was 27.4 (3.2)°C in August and 21.2 (2.0)°C in September. The mean pre-work-shift participant urine specific gravity indicated minimal dehydration. Twenty-four percent of participants exhibited possible excessive sleepiness. There was no association between WBGT and post-shift reaction time or total path length.
Conclusions: Heat exposure was not associated with impaired vigilance or balance in this study, in which the overall mean (SD) WBGT was 25.9 (4.2)°C. However, the study identified opportunities to ensure adequate pre-work-shift hydration and to optimize sleep and work-shift timing in order to reduce occupational injury and heat-related illness risk.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5912891 | PMC |
| http://dx.doi.org/10.1016/j.apergo.2017.09.002 | DOI Listing |
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