ergo14 - Safety and Ergonomics Safety and Ergonomics How...

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Safety and Ergonomics Safety and Ergonomics How the body interacts with the environment Review!!!! ± Thermal regulation of the body??? ² Hot environment ² Cold environment Spring 2010/ 2011 2
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Safety and Ergonomics Acclimatization ± Acclimation to hot ² Increased sweat production ² Decreased core and skin temperature ² Reduced heart rate ± Acclimation to cold Spring 2010/ 2011 3 Thermal environment Effect of hot Effect of cold Cardiovascular system became limitation of muscular work Enlarge cardiac volume with a low heart rate Power output of muscles reduce Oxygen uptake increase due to shivering, work against heavy clothing Dehydration may cause heat exhaustion and affects capability to Dehydration occur in response to the increased sweating due to higher Spring 2010/ 2011 perform endurance tasks energy demand 4
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Safety and Ergonomics Thermal environment ± Air humidity Ai ± Air movement ± Air/ water temperature ± Surfaces/ solids temperature ± Opposing surface temperature Spring 2010/ 2011 ± Windchill 5
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ergo14 - Safety and Ergonomics Safety and Ergonomics How...

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