Chapter 11: Hydration | Lesson 2: Effects of Dehydration

Question 1

What is the best way to protect yourself from heat-related illness?

Answer 1

Contrary to popular belief, just staying hydrated does not completely protect you from heat-related illness. The best way to do so is to abstain from overexertion in hot external conditions and microenvironments (example is a hot car in moderate climate).

Question 2

What are some ways that causes heat dissipation?

Answer 2

External temperatures are cooler than internal temperatures, which causes blood movement to the skin. Another way is increasing total body fluid which will increase sweat generation and provide the greatest cooling effect.

Question 3

What is the only way sweat is beneficial for cooling?

Answer 3

When it is evaporated off the surface of the skin.

Question 4

What elements determine the rate of sweat evaporation?

Answer 4

Heat, humidity levels(you want lower humidity), and Convection.

Question 5

What is convection when discussing sweating?

Answer 5

The movement or flow of air over the body.

Question 6

What individuals should not have workouts programed in the heat?

Answer 6

lesser-fit people whose bodies are not used to activity in hot climates.

Question 7

What is euhydration?

Answer 7

Normal hydration status

Question 8

Hydration level affects what two major influential factors when discussing performance in hot climates?

Answer 8

Cardiovascular (heart rate) and thermoregulatory (body temperature) function

Question 9

What is exertional rhabdomyolysis (ER)?

Answer 9

Muscle cell membranes rupture and leak high amounts of proteins, such as myoglobin and creatine kinase, into the ECF after abnormally strenuous or new activity.

Symptoms of ER usually consist of very dark urine, stiff and swollen joints, unusual puffiness, and abnormal muscle soreness.