Human Performance 32

Human Performance 32 - HumanPerformance32 15:54 WBGT(index)

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Human Performance 32 15:54 WBGT (index)  It is used to determine heat stress and indicates if the problem may be in trouble  in terms of endurance exercise.  WBGT = (Wet Bulb) (.7)+ (Temperature)(.2) + (Dry Bulb)(.1) hyperthermia = heat production, > heat loss. *Dry Bulb – a regular thermometer. *Wet bulb – cotton wet around the  bottom of the bulb of the thermometer.  The temp of the dry one is 80F and it is very dry day. The temp of the wet one,  what would it be? Would be lower, so less than 80F If its dry day, the vaporization cools the thermometer. The wet bulb decreases in  temperature since the water evaporates just like in the skin.  *wet bulb and dry  bulb used to measure relative humidity in air . If the wet achieves the 80 is  because the air is saturated already . The humidity in the air is the most  important factor in heat stress that an individual would face.
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This note was uploaded on 10/28/2010 for the course EXSC 205Lxg taught by Professor Girandola during the Spring '07 term at USC.

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Human Performance 32 - HumanPerformance32 15:54 WBGT(index)

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