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Human Performance 31

Human Performance 31 - HumanPerformance31 15:58...

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Human Performance 31 15:58 Sweat Rate: AVG ~ 1-2 L/hr max is 4L per hour. A gallon in an hour.  1liter = 1  kilogram = 2.2 lbs. 1 Gallon of sweat one looses 8-9lbs of weight. During exercise  heat max theoretical = 4L/hr If you work harder and in heat you sweat more. Genetic determination. If  ancestors came from Europe from cold places the likelihood of sweat  glands is a low number. If ancestors are from equator then you have more  sweat glands. When people train they increase sweat glands.   In addition, it  appears that once increase sweat glands one increases capacity. Moving to  a hot place one increases sweat glands.   Scenario: Temp: 90F Wind:0 Humidity 30%: what is the heat loss system? By  sweating, evaporative cooling, since there is no humidity. (when ambient temp is  close to body temp, loosing heat by radiation is impaired) Scenario 2)Temp: 40F, 10 Wind, 90% humidity: Radiation  Scenario 3)Temp: 90F, 0 Wind, 90%: the key is exercise, at rest you can tolerate  this 1kcal/min, but if you do heavy exercise to 10 calories or so is dangerous  (long term exercise): radiation, cooling minimal amounts.
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  • Spring '07
  • Girandola
  • sweat rate, Gatorade product.  Sweat, sweat glands., sweat glands.  Scenario, total blood  volume, sweat capacity.

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