Question 1

The body content is approximately what percentage of water?

Accepted Answer

A)  10-150 
B)  20-25 
C)  30-40 
D)  50-60 
E)  80-90

Question 2

Acclimatization to the heat will increase performance in warm environments. Which of the following statements is true concerning this technique?

Accepted Answer

A)  Cutback on the intensity or duration of your normal activity and then increase it gradually 
B)  The process usually takes from one to two weeks to complete, but is lost in about seven to ten days in a cool environment 
C) The changes associated with acclimatization increase the ability of the body to dissipate heat with less stress on the cardiovascular system 
D)  All of these answers are correct when discussing acclimatization

Question 3

The amount of ingested fluid that enters the circulatory system depends upon two factors: gastric absorption and intestinal absorption.

Accepted Answer

A) True 
 B)False

Question 4

Excessive loss of sweat during exercise in the heat will lead to a body condition known as

Accepted Answer

A)  hyperhydration 
B)  hypohydration 
C)  homeostasis 
D)  normohydration 
E)  hyponatremia

Question 5

Oral rehydration therapy was developed by medical scientists to decrease mortality from diarrhea, but
as yet has produced no application for sports activities.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is NOT true concerning exercise and hypertension?

Accepted Answer

A)  Exercise may exert a beneficial effect in reducing high blood pressure as it is a means to lose excess body fat 
B)  All individuals will experience a decrease in blood pressure from an approved exercise program 
C) Isometric exercises, weight lifting, pull-ups, and other high-intensity aerobic exercise should be
Avoided by all hypertensive individuals as they create a physiological response that rapidly raises blood pressure 
D)  The exact role of exercise, as an independent factor in lowering blood pressure, has not been totally resolved

Question 7

Dehydration may be voluntary or involuntary.

Accepted Answer

A) True 
 B)False

Question 8

Sodium is a mineral element and is one of the principle positive ions. Sodium

Accepted Answer

A)  serves primarily to help maintain normal body-fluid balance and osmotic pressure in the extracellular fluids. 
B)  is solely responsible for nerve impulse transmission and muscle contraction. 
C)  is found in rather small amounts in most natural foods, thus, deficiency states due to inadequate dietary intake are common. D concentration may decrease in the blood; if this occurs, ADH, produced in the adrenal gland, will
) stimulate the kidney to return additional sodium.

Question 9

Hyperhydration, also known as superhydration,

Accepted Answer

A)  is an attempt to assure that the body-water level is high before exercising in a hot environment. 
B)  is more effective than rehydration and will reduce the effects of heat stress on the core temperature. 
C)  can be easily accomplished by simply consuming 8 ounces of cold water about 90-120 minutes before exercising. 
D)  can delay the effects of dehydration, but research suggests that it has no effect on prolonged endurance.

Question 10

Which of the following statements is NOT true regarding water in the human body?

Accepted Answer

A)  It contains some food energy and enables the utilization of most of the other nutrients essential to life 
B)  It provides the medium within which other nutrients function and regulates body temperature 
C)  It constitutes the majority of body weight, thus, rapid losses through dehydration may prove fatal in a relatively short time 
D) The combination of environmental heat and increased heat from exercise metabolism may disturb
Body-water supplies, electrolyte status, and temperature regulations

Question 11

Which of the following is one of the general recommendations of the DASH diet plan to help prevent or treat high blood pressure (hypertension)?

Accepted Answer

A)  achieve and maintain a healthy body weight with diet and aerobic exercise 
B)  reduce or moderate sodium intake 
C)  consume a diet rich in fruits and vegetables 
D)  do not consume alcohol in excess 
E)  all are recommended to help prevent or treat hypertension

Question 12

During acute, moderate duration bouts of exercise, such as a 10-kilometer run, electrolyte deficiency
is a concern.

Accepted Answer

A) True 
 B)False

Question 13

If one liter of sweat would evaporate from the skin, approximately how many kilocalories of heat energy would be removed from the body?

Accepted Answer

A)  0-100 
B)  150-200 
C)  350-400 
D)  550-600 
E)  1,000

Question 14

During times of excessive stress, when circulation is attempting to regulate both body temperature and
blood pressure, control of blood pressure is impaired since body temperature regulation becomes a priority.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following does not occur following acclimatization to exercise in the heat?

Accepted Answer

A)  increased sweat production during exercise 
B)  increased blood volume 
C)  a lower rise in the core temperature during exercise 
D)  a lesser rise in the heart rate response to exercise 
E)  an increased sodium loss in each liter of sweat

Question 16

Normal body water level is normohydration, while loss of body water results in hyperhydration.

Accepted Answer

A) True 
 B)False

Question 17

The recommended means to replenish lost electrolytes through sweat on a day-to-day basis is via:

Accepted Answer

A)  salt tablets 
B)  potassium supplements 
C)  GES such as Gatorade 
D)  vitamin tablets 
E)  a balanced diet and adequate fluids

Question 18

If an athlete weighs several pounds less from one morning to the next, it is likely that fluid
replenishment has been deficient.

Accepted Answer

A) True 
 B)False

Question 19

Hypothermia is one of the major factors limiting physical performance.

Accepted Answer

A) True 
 B)False

Question 20

Exercise in the heat, such as running a 10K race. Which of the following, if any, is likely to hamper temperature regulation during the event?

Accepted Answer

A)  plain water 
B)  5-7 percent glucose solution 
C)  Glucose polymer solution of 6-8 percent 
D)  there appears to be no difference among these different forms of hydration techniques relative to temperature regulation

Exam 9: Water, Electrolytes and Temperature Regulation

The body content is approximately what percentage of water?

Acclimatization to the heat will increase performance in warm environments. Which of the following statements is true concerning this technique?

The amount of ingested fluid that enters the circulatory system depends upon two factors: gastric absorption and intestinal absorption.

Excessive loss of sweat during exercise in the heat will lead to a body condition known as

Oral rehydration therapy was developed by medical scientists to decrease mortality from diarrhea, but as yet has produced no application for sports activities.

Which of the following is NOT true concerning exercise and hypertension?

Dehydration may be voluntary or involuntary.

Sodium is a mineral element and is one of the principle positive ions. Sodium

Hyperhydration, also known as superhydration,

Which of the following statements is NOT true regarding water in the human body?

Which of the following is one of the general recommendations of the DASH diet plan to help prevent or treat high blood pressure (hypertension) ?

During acute, moderate duration bouts of exercise, such as a 10-kilometer run, electrolyte deficiency is a concern.

If one liter of sweat would evaporate from the skin, approximately how many kilocalories of heat energy would be removed from the body?

During times of excessive stress, when circulation is attempting to regulate both body temperature and blood pressure, control of blood pressure is impaired since body temperature regulation becomes a priority.

Which of the following does not occur following acclimatization to exercise in the heat?

Normal body water level is normohydration, while loss of body water results in hyperhydration.

The recommended means to replenish lost electrolytes through sweat on a day-to-day basis is via:

If an athlete weighs several pounds less from one morning to the next, it is likely that fluid replenishment has been deficient.

Hypothermia is one of the major factors limiting physical performance.

Exercise in the heat, such as running a 10K race. Which of the following, if any, is likely to hamper temperature regulation during the event?