EXSS 288 EXAM 3 UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

EXSS 288 EXAM 3 UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS

Question:
1. Environmental Stress
Answer:
Adversely impact an athlete's performance and pose serious health threats Areas of concern: hyperthermia,
hypothermia, lightening storms

Question:
2. Hyperthermia Defined
Answer:
Increase in body temperature
- may be within a normal range
- may be outside normal range (area of concern) Thermal load on body generated internally or externally
- muscle
- environment

Question:
3. Hyperthermia Concerns
Answer:
Interaction of many variables: temperature, weather, humidity, hydration Serious consequences when not
managed properly All above contribute to a level of Heat Stress

Question:
4. Heat Stress
Answer:
Our body will attempt to maintain a "physiological temperature" that is safe for function
- the poor management of the thermal load leads to heat illness In athletics we can see elevated body
temperature, it is when we see temperature elevated outside the normal range that illness may ensue Body
temperature regulation

Question:
5. 5 Main Factors Affecting Body Temperature
Answer:
1. Metabolic Heat Production
2. Conductive Heat Exchange
3. Convective Heat Exchange
4. Radiant Heat Exchange
5. Evaporative Heat Loss

Question:
6. Metabolic Heat Production

,Answer:
Normal metabolic function generate heat Exercise will always result in an increase in heat
- greater the intensity exercise -> higher the metabolism -> greater heat production

Question:
7. Conductive Heat Exchange
Answer:
Direct physical contact with an object/structure
- heat is then transferred into or out of the body Physical contact with other objects can result in either a
heat loss or gain

Question:
8. Convective Heat Exchange
Answer:
Contact with air or water Body heat can be either lost or gained depending on the temperature of
circulating medium
- the cool/hot air/water moving against the athlete's skin absorbs or adds heat

Question:
9. Radiant Heat Exchange
Answer:
Radiant heat from sunshine causes an increase in body temperature
- sun's energy contacting the skin Body emits radiant heat energy too
- metabolic processes release energy
- transferred to tissue as heat

Question:
10. Evaporative Heat Loss
Answer:
Sweat glands in skin transport water to the surface When the sweat evaporates, the body releases heat Heat
illness can still occur in cold environment if body cannot dissipate heat
- dehydration and inability to sweat

Question:
11. Effects of Humidity
Answer:
Relative humidity of 65% impairs evaporation Relative humidity of 75% STOPS evaporation

Question:
12. Preventing Heat Illness
Answer:
Monitoring heat index Appropriate Hydration Gradual acclimatization

Question:
13. Heat Index
Answer:
combine air temperature and relative humidity to determine the human-perceived equivalent temperature

, Question:
14. Determining Heat Index
Answer:
Wet bulb globe temperature (WBGT) Readings from 3 thermometers: Dry bulb temp (DBT), Wet bulb
temp (WBT), Globe temp (GT)

Question:
15. Dehydration
Answer:
Defined as: when the loss of water and salts is more than is replenished Water makes up approximately
60% of the male body mass and 50% of the female body mass Water makes up 75% of muscle mass, but
only 25% of fat mass

Question:
16. Dehydration S&S
Answer:
Thrist, Dry mouth, Headache, Dizziness, irritability, lethargy, excessive fatigue, poor skin turgor

Question:
17. Dangers of Dehydration
Answer:
cramps, headaches, diarrhea, fever, vomiting, hallucinations, death

Question:
18. Types of Dehydration
Answer:
Mild - less than 5% weight less Moderate - 5-10% weight loss Severe - 10-15% weight loss
- severe dehydration requires immediate medical attention and can lead to death

Question:
19. Dehydration During Activity
Answer:
Athletes greatly increase their water loss
- large increases in sweat loss
- some decreases in urine loss Athletes need to increase water intake
- athletes often fail to consume adequate amounts of fluids to maintain optimal hydration status

Question:
20. Monitoring Dehydration
Answer:
Establish a hydration protocol Determine individual sweat rate
- changes in body weight: 1 pound = 1-pint additional fluids
- also may account for urine volume
- goal: no weight loss Monitor urine color

Question:
21. Maintain Proper Hydration