2015
DOI: 10.4103/2008-7802.163185
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Validation of perceptual strain index to evaluate the thermal strain in experimental hot conditions

Abstract: Background:The incidence of heat stress is one of the most common problems in workplaces and industries. Many heat stress indices have been developed, and these indices have some disadvantages. The purpose of this study is to validate the perceptual strain index (PeSI) in experimental hot conditions.Methods:This study is of cross-sectional carried out on 15 men at five different thermal conditions (35°C, 30°C, 27°C, 24°C, and 21°C) in a climate chamber and on a treadmill at three levels of light (2.4 kph), med… Show more

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Cited by 16 publications
(13 citation statements)
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“…In a study conducted by Dehghan et al to assess heat strain, results showed that there was a relationship between heart rate and oral temperature and heat strain index. 34 Negahban et al in a study that conducted on Tehran casting staff, results showed that there is a correlation between heat strain of heart rate number and amount of recovery heart rate and environmental heat stress. 35 In a study by Stephen and McQueen in 2012 to evaluate heat stress by measuring body temperature, heart rate, body weight loss was conducted on farm workers, the re- sults found that one-third of workers have had weight loss of 1.5%, which was a sign of dehydration and heart rate were significantly associated with WBGT index that is consistent with this study and people who were exposed to heat stress, body temperature, and weight was respectively high and less than those who were exposed to less thermal stress.…”
Section: Discussionmentioning
confidence: 97%
“…In a study conducted by Dehghan et al to assess heat strain, results showed that there was a relationship between heart rate and oral temperature and heat strain index. 34 Negahban et al in a study that conducted on Tehran casting staff, results showed that there is a correlation between heat strain of heart rate number and amount of recovery heart rate and environmental heat stress. 35 In a study by Stephen and McQueen in 2012 to evaluate heat stress by measuring body temperature, heart rate, body weight loss was conducted on farm workers, the re- sults found that one-third of workers have had weight loss of 1.5%, which was a sign of dehydration and heart rate were significantly associated with WBGT index that is consistent with this study and people who were exposed to heat stress, body temperature, and weight was respectively high and less than those who were exposed to less thermal stress.…”
Section: Discussionmentioning
confidence: 97%
“…temperature, noise and lighting, which cause improvement in performance (7). A number of researches have studied the psychological effects of the environment on other environment features and in some other studies the physical effects of the environment on psychological factors (8)(9)(10). Recently many studies on workplace psychology have been conducted that focused highly on the environment physical conditions and job performance (4).…”
Section: Introductionmentioning
confidence: 99%
“…The oral temperature ranged from 0.3 to 0.7°C lower than core body temperature, averaging at around 0.5°C. national institute of occupational safety and health (NIOSH ) and the world health organization (WHO) recommend that core body temperature remain below 38°C (9).…”
Section: Resultsmentioning
confidence: 99%
“…This process was used to measure several physiological parameters simultaneously. As a measure of physiological strain, coincident oral temperature and heart rate measurements were used to create the PSI (9). In this study, oral temperature was calculated to represent core body temperature (Trek), as rectal temperature measurement was not possible (11).…”
Section: Measurementsmentioning
confidence: 99%
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