Apparent Temperature Heat Stress Index
Heatstroke:
Category Apparent
Temperature
Care80-89°F
Ultra Care |
Danger
Ultra Danger | Greater than |
| 130°F |
Effects of Heat Illnesses
Heat Cramps:
Dangers
Exercise more fatiguing than usual
Heat cramps, exhaustion possible
Heat exhaustion likely
Heat sroke imminent
In some cases, extreme heat can upset the body’s thermostat causing body temperature to rise to 105 degrees or higher. Heat stroke symptoms include lethargy, confusion, and unconsciousness. Suspicion of heatstroke also requires immediate medical attention since heatstroke can result in death.
The importance of the Heat Index is to show how hot a particular combination of heat and humidity feels. The Heat Index in the
How Temperature and Humidity Combine to Make If Feel Hotter
Exercising in hot weather can lead to muscle cramps, especially in the legs, because of brief imbalances in body salts. Cramps become less frequent as a person becomes used to the heat. As with heat cramps, the cure is to take it easy.
Heat Syncope or Fainting:
Anyone not used to exercising in the heat can experience a quick drop in blood pressure that can lead to fainting.
Heat Exhaustion:
The loss of fluid and salt through perspiration and improper replacement of them can lead to dizziness and weakness. Body temperature might rise, but not above 102 degrees. In some cases, victims especially the elderly should be hospitalized. Heat exhaustion is more likely to occur after continuous exposure to excessive heat waves. The best prevention from heat exhaustion is to drink plenty of water and minimize physical activity in the heat. Salt tablets should not be taken without consulting a physician.
3.3 Determining Your MET Parameter
If a specific activity is not available in your watch, choose a similar exercise type and use the corresponding parameter from the table below to set your watch (Please refer to page 28 to set the MET Parameter).
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