نتایج جستجو برای: wbgt
تعداد نتایج: 303 فیلتر نتایج به سال:
Introduction: In this study we (i) introduced time-motion analysis for assessing the impact of workplace heat on the work shift time spent doing labor (WTL) of grape-picking workers, (ii) examined whether seasonal environmental differences can influence their WTL, and (iii) investigated whether their WTL can be assessed by monitoring productivity or the vineyard manager's estimate of WTL. Metho...
OBJECTIVE Explosive ordnance disposal (EOD) often requires technicians to wear multiple protective garments in challenging environmental conditions. The accumulative effect of increased metabolic cost coupled with decreased heat dissipation associated with these garments predisposes technicians to high levels of physiological strain. It has been proposed that a perceptual strain index (PeSI) us...
OBJECTIVE The 2014 FIFA World Cup Brazil included 64 matches in temperate to tropical environmental conditions. We analysed performance data in relation to the environmental conditions to identify potential association. METHODS Wet-bulb globe temperature (WBGT) parameters were obtained at the centre of the field 1 h before the start of play. Environmental stress was estimated (low, moderate a...
BACKGROUND Chronic heat stress and dehydration from strenuous work in hot environments is considered an essential component of the epidemic of chronic kidney disease in Central America. OBJECTIVE (1) To assess feasibility of providing an intervention modelled on OSHA's Water.Rest.Shade programme (WRS) during sugarcane cutting and (2) to prevent heat stress and dehydration without decreasing p...
heat stress particularly at outdoor workplaces in hot-dry climates can disrupt the physical or mental functions and effect negatively on human performance. we aimed to study the effect of heat stress on productivity loss among workers of brick workshops in qom province – central iran. this cross-sectional descriptive and analytic study was performed on 184 workers in 40 brick workshop...
In this review we examine how self-paced performance is affected by environmental heat stress factors during cycling time trial performance as well as considering the effects of exercise mode and heat acclimatization. Mean power output during prolonged cycling time trials in the heat (≥30°C) was on average reduced by 15% in the 14 studies that fulfilled the inclusion criteria. Ambient temperatu...
BACKGROUND Workers laboring in steel industries in tropical settings with high ambient temperatures are subjected to thermally stressful environments that can create well-known risks of heat-related illnesses and limit workers' productivity. METHODS A cross-sectional study undertaken in a steel industry in a city nicknamed "Steel City" in Southern India assessed thermal stress by wet bulb glo...
زمینه و هدف: زمانی که از استرس صحبت می شود بیشتر جنبه های منفی آن مد نظر است. استرس می تواند در بروز برخی بیماریهای جسمی، روانی و اجتماعی نقش داشته باشد. استرس زیاد باعث کاهش عملکرد فرد و افزایش حوادث در محیط کار می شود. در خطوط تولید صنعت سیمان عوامل زیان آور مختلفی وجود دارد که در بروز استرس نقش داشته و سلامتی کارگران را به مخاطره می اندازد. روش بررسی: این پژوهش بر روی 177 نفر از کارگران خط ت...
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