نتایج جستجو برای: heat strain indices

تعداد نتایج: 496676  

Journal: :jundishapur journal of health sciences 0
peymaneh habibi department of occupational health engineering, school of health, isfahan university of medical sciences, isfahan, ir iran reza momeni department of engineering occupational health, student research center, school of health, isfahan university of medical sciences, isfahan, ir iran habibollah dehghan department of occupational health engineering, school of health, isfahan university of medical sciences, isfahan, ir iran; department of occupational health engineering, school of health, isfahan university of medical sciences, isfahan, ir iran. tel: +98-3117922733, fax: +98-3116682509

conclusions the results showed that, compared to participants with normal weights, physiological and thermal perceptual responses were higher in overweight participants. therefore, overweight individuals should avoid hot/dry weather conditions to decrease the amount of heat strain. results in both groups, oral temperature, heart rate, and thermal perceptual responses increased during heat expos...

Journal: :تحقیقات نظام سلامت 0
ایوب قنبری سرتنگ دانشجوی کارشناسی ارشد، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران حبیب اله دهقان استادیار، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

background : in many jobs, individuals are exposed to thermal stress, and thus, evaluation of heat stress is necessary. this study was conducted with the purpose of investigating the relationship of perceptual strain index (pesi) with other heat indexes under hot laboratory conditions. methods: this empirical-experimental and cross-sectional study was performed in 5 different temperatures (21 º...

Journal: :international journal of occupational hygiene 0
mohamadreza monazzam department of occupational health engineering, school of public health, tehran university of medical sciences. farideh golbabaei department of occupational health engineering, school of public health, tehran university of edicalsciences,tehran, iran. rasoul hematjo department of occupational health engineering, faculty of health, bushehr university of medical sciences, bushehr , iran. mostafa hosseini department of epidemiology and biostatistics, school of public health, tehran university of medical sciences. parvin nassiri department of occupational health engineering, school of public health, tehran university of medical sciences. somayeh fahang-dehghan department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran.

heat stress is a common occupational health hazard at outdoor workplaces especially in a hot-humid climate. overheating of the body can cause a number of problems, including heat rash, heat cramps, dizziness, heat exhaustion, and heat stroke. the present study aimed to assess heat stress indices including di, wbgt, and sw req /phs, as a mean to estimate the heat load on the employees of a petro...

Journal: :Ergonomics 2009
S J Petruzzello J I Gapin E Snook D L Smith

Firefighting demands performing heavy muscular work under adverse and potentially dangerous conditions. Although the physiological and psychological responses to simulated firefighting activities have been described, the heat strain has not been characterised using standardised indices of exercise-heat strain. The purpose of the study is to describe the physiological and perceptual strain assoc...

اصیلیان مهابادی, حسن, تیموری, غلام حیدر, جعفری, محمد جواد, خداکریم, سهیلا,

Introduction: Workers in open pit iron ore mines are exposed to heat stress which can cause health and safety problems. The purpose of this study was to evaluate heat stress among open-pit mine workers of iron ore based on Wet Bulb Globe Temperature (WBGT) index and also to investigate its relationship with physiological Strain. Material and Method: This cross-sectional study was conducted o...

Journal: :تحقیقات نظام سلامت 0
حبیب اله دهقان مربی، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران احسان اله حبیبی دانشیار، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران بهنام خدارحمی دانشجوی کارشناسی ارشد، کمیته تحقیقات دانشجویی، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران حسینعلی یوسفی مربی، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران اکبر حسن زاده مربی، مرکز تحقیقات امنیت غذایی، گروه آمار زیستی و اپیدمیولوژی، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

background: heat stress is a common and usual problem in industries. several indices, including wet bulb globe temperature (wbgt), are used to evaluate heat stress. however, wbgt index has limitations such as high cost and response time. it is not thus suitable as a screening tool. heat strain scoring index (hssi) is also an observational-judgmental technique that has been developed for primary...

ژورنال: ارگونومی 2015
دهقان, حبیب الله, قنبری سرتنگ, ایوب,

  Introduction: The incidence of heat stress is one of the most common problems in work environments as well as many different industries. The exposure of workers to heat results in heat strain. The purpose of the present study was to validate the Perceptual Strain Index through determining its relationship to the Physiological Strain Index and the Wet Bulb Globe Temperature Index und...

2018
Chuansi Gao Kalev Kuklane Per-Olof Östergren Tord Kjellstrom

Global warming will unquestionably increase the impact of heat on individuals who work in already hot workplaces in hot climate areas. The increasing prevalence of this environmental health risk requires the improvement of assessment methods linked to meteorological data. Such new methods will help to reveal the size of the problem and design appropriate interventions at individual, workplace a...

Journal: :international journal of occupational hygiene 0
mohammad reza ghotbi ravandi department of occupational health engineering, school of public health, kerman university of medical sciences, kerman, iran sajad salimi department of occupational health engineering, school of public health, kerman university of medical sciences, kerman, iran narges khanjani department of statistics and epidemiology, school of public health, kerman university of medical sciences, kerman, iran mohammad javad jafari department of occupational health engineering, school of public health, shahid beheshti university of medical sciences, tehran, iran

original article   introduction: exposure to heat is one of the workplace risk factors, which may lead to thermal strain, such as rising heart rate and body temperature. to have the best association between a heat stress indices and physiological parameters have always been a major concern for those studying the subject. this study aims to compare the association of two heat stress indices with...

Journal: :international journal of preventive medicine 0
habiballah dehghan ehsanollah habibi peymaneh habibi mohammad reza maracy

introduction: physiological, anthropometrical and thermal perceptual are the most important factors affecting thermoregulation of men and women in workplaces. the purpose of this study was determining the validity of a questionnaire method for assessing women’s heat strain in workplaces. methods: this cross‑sectional study was carried out on 96 healthy women. data were continuously collected ov...

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