The Experts below are selected from a list of 15 Experts worldwide ranked by ideXlab platform
R Murray - One of the best experts on this subject based on the ideXlab platform.
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sodium balance during u s football training in the Heat Cramp prone vs reference players
International Journal of Sports Medicine, 2009Co-Authors: C A Horswill, John R Stofan, Magie Lacambra, T A Toriscelli, E R Eichner, R MurrayAbstract:U. S. football players with a history of Heat Cramps were evaluated for the effect of physical training, sodium intake, and loss of sweat sodium on whole blood sodium concentration (BNa). Athletes (n=14 males, 24+/-1 y) were recruited and studied based on medical history, age, and position. The reference group (R, n=8 without a Cramping history) and Cramp-prone group (C, n=6, history of whole-body Cramps associated with extensive sweat loss during exercise in the Heat) were measured for body mass and BNa (ISTAT) before and after team training of 2.2 h in hot conditions (WBGT=29-32 degrees C). Intake and loss of fluid and sodium were also measured to determine respective acute balance. In R, BNa was stable pre- to post-training (138.9+/-1.8 to 139.0+/-2.0 mmol/L) while it tended to decline in C (137.8+/-2.3 to 135.7+/-4.9 mmol/L), and three subjects in C had BNa values below 135 mmol/L (131.7+/-2.9 mmol/L). C consumed a greater percentage of total fluid as water (p 0.05). Compared to R, C tended to experience a decline in BNa and greater acute sodium imbalance. These changes may place Cramp-prone players at greater risks for developing acute sodium deficits during training.
Sasitorn Taptagaporn - One of the best experts on this subject based on the ideXlab platform.
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Health impact of climate change on occupational health and productivity in Thailand.
Global health action, 2010Co-Authors: Uma Langkulsen, Nuntavarn Vichit-vadakan, Sasitorn TaptagapornAbstract:Background: The rise in global temperature is well documented. Changes in temperature lead to increases in Heat exposure, which may impact health ranging from mild Heat rashes to deadly Heat stroke. Heat exposure can also aggravate several chronic diseases including cardiovascular and respiratory disease. Objective: This study examined the relationship between climate condition and health status and productivity in two main categories of the occupational setting - where one setting involves Heat generated from the industry and the other with Heat in a natural setting. Design: This cross-sectional study included four industrial sites (pottery industry, power plant, knife industry, and construction site) and one agricultural site in the Pathumthani and Ayutthaya provinces. Exposure data were comprised of meteorological data and Heat exposure including relative humidity (RH) measured by Wet Bulb Globe Temperature (WBGT) monitor. Heat index was calculated to measure the effects of Heat exposure on the study population, which consisted of 21 workers at five worksites; a questionnaire was also used to collect data on workers. Results: Among the five workplaces, the outdoor WBGTwas found to be highest at 34.6°C during 12:00 and 1:00 PM at the agricultural site. It was found that four out of five study sites had Heat indices in the ‘extreme caution,’ where Heat Cramp and exhaustion may be possible and one site showed a value of 41°C that falls into the category of ‘danger,’ where sunstroke and Heat exhaustion are likely and prolonged exposure may lead to Heatstroke. Productivity as perceived by the workers revealed that only the construction and pottery industry workers had a loss of productivity ranged from 10 to 60 %. Conclusions: Climate conditions in Thailand potentially affect both the health and productivity in occupational settings. Keywords: climate change; occupational health; productivity; Heat index; WBGT (Published: 9 December 2010) Citation: Global Health Action 2010, 3: 5607 - DOI: 10.3402/gha.v3i0.5607
C A Horswill - One of the best experts on this subject based on the ideXlab platform.
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sodium balance during u s football training in the Heat Cramp prone vs reference players
International Journal of Sports Medicine, 2009Co-Authors: C A Horswill, John R Stofan, Magie Lacambra, T A Toriscelli, E R Eichner, R MurrayAbstract:U. S. football players with a history of Heat Cramps were evaluated for the effect of physical training, sodium intake, and loss of sweat sodium on whole blood sodium concentration (BNa). Athletes (n=14 males, 24+/-1 y) were recruited and studied based on medical history, age, and position. The reference group (R, n=8 without a Cramping history) and Cramp-prone group (C, n=6, history of whole-body Cramps associated with extensive sweat loss during exercise in the Heat) were measured for body mass and BNa (ISTAT) before and after team training of 2.2 h in hot conditions (WBGT=29-32 degrees C). Intake and loss of fluid and sodium were also measured to determine respective acute balance. In R, BNa was stable pre- to post-training (138.9+/-1.8 to 139.0+/-2.0 mmol/L) while it tended to decline in C (137.8+/-2.3 to 135.7+/-4.9 mmol/L), and three subjects in C had BNa values below 135 mmol/L (131.7+/-2.9 mmol/L). C consumed a greater percentage of total fluid as water (p 0.05). Compared to R, C tended to experience a decline in BNa and greater acute sodium imbalance. These changes may place Cramp-prone players at greater risks for developing acute sodium deficits during training.
Uma Langkulsen - One of the best experts on this subject based on the ideXlab platform.
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Health impact of climate change on occupational health and productivity in Thailand.
Global health action, 2010Co-Authors: Uma Langkulsen, Nuntavarn Vichit-vadakan, Sasitorn TaptagapornAbstract:Background: The rise in global temperature is well documented. Changes in temperature lead to increases in Heat exposure, which may impact health ranging from mild Heat rashes to deadly Heat stroke. Heat exposure can also aggravate several chronic diseases including cardiovascular and respiratory disease. Objective: This study examined the relationship between climate condition and health status and productivity in two main categories of the occupational setting - where one setting involves Heat generated from the industry and the other with Heat in a natural setting. Design: This cross-sectional study included four industrial sites (pottery industry, power plant, knife industry, and construction site) and one agricultural site in the Pathumthani and Ayutthaya provinces. Exposure data were comprised of meteorological data and Heat exposure including relative humidity (RH) measured by Wet Bulb Globe Temperature (WBGT) monitor. Heat index was calculated to measure the effects of Heat exposure on the study population, which consisted of 21 workers at five worksites; a questionnaire was also used to collect data on workers. Results: Among the five workplaces, the outdoor WBGTwas found to be highest at 34.6°C during 12:00 and 1:00 PM at the agricultural site. It was found that four out of five study sites had Heat indices in the ‘extreme caution,’ where Heat Cramp and exhaustion may be possible and one site showed a value of 41°C that falls into the category of ‘danger,’ where sunstroke and Heat exhaustion are likely and prolonged exposure may lead to Heatstroke. Productivity as perceived by the workers revealed that only the construction and pottery industry workers had a loss of productivity ranged from 10 to 60 %. Conclusions: Climate conditions in Thailand potentially affect both the health and productivity in occupational settings. Keywords: climate change; occupational health; productivity; Heat index; WBGT (Published: 9 December 2010) Citation: Global Health Action 2010, 3: 5607 - DOI: 10.3402/gha.v3i0.5607
T A Toriscelli - One of the best experts on this subject based on the ideXlab platform.
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sodium balance during u s football training in the Heat Cramp prone vs reference players
International Journal of Sports Medicine, 2009Co-Authors: C A Horswill, John R Stofan, Magie Lacambra, T A Toriscelli, E R Eichner, R MurrayAbstract:U. S. football players with a history of Heat Cramps were evaluated for the effect of physical training, sodium intake, and loss of sweat sodium on whole blood sodium concentration (BNa). Athletes (n=14 males, 24+/-1 y) were recruited and studied based on medical history, age, and position. The reference group (R, n=8 without a Cramping history) and Cramp-prone group (C, n=6, history of whole-body Cramps associated with extensive sweat loss during exercise in the Heat) were measured for body mass and BNa (ISTAT) before and after team training of 2.2 h in hot conditions (WBGT=29-32 degrees C). Intake and loss of fluid and sodium were also measured to determine respective acute balance. In R, BNa was stable pre- to post-training (138.9+/-1.8 to 139.0+/-2.0 mmol/L) while it tended to decline in C (137.8+/-2.3 to 135.7+/-4.9 mmol/L), and three subjects in C had BNa values below 135 mmol/L (131.7+/-2.9 mmol/L). C consumed a greater percentage of total fluid as water (p 0.05). Compared to R, C tended to experience a decline in BNa and greater acute sodium imbalance. These changes may place Cramp-prone players at greater risks for developing acute sodium deficits during training.
