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Lecture

Last AT Lecture


Department
Kinesiology: Professional Courses/Basic Activity Courses
Course Code
KIN 2503
Professor
All

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Nadja James
Kin 2503
Class Notes
Evaporation & heat loss
Sweats glands-water to skin
Sweating does not cause heat loss
Evaporation-allows us to cool
Evaporation must occur to dissipate heat
If air is filled with water, body loses ability to cool
65%- impaired
75%-stops
Monitoring Heat Index
Digital Heat Index Monitor
-Easy, efficient
-Does not accurately measure humidity
- (Kopischke, JAT 2005)
Sling Psychomotor
-Combo of dry and wet bulb
- Commonly used, fairly accurate
Measure of External Heat
Wet bulb Globe Temperature Index (WBGT)
-WGBT-different thermometer readings
Dry bulb (standard mercury air temperature)
Wet bulb (measures humidity or evaporation ability)
Black bulb (black casing that measures radiant heat)
WGBT vs. Heat Index
-WBGT INDEX
Must have WGBT device
Utilize chart based on WGBT index
Produces an index number, not temperature rating
-HEAT INDEX
Temperature and % humidity
Utilize a heat index chart
Produces an actual or feels like” temperature rating
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