Question 1

Intestinal absorption of water is

Accepted Answer

A)  enhanced when glucose and sodium are also present. 
B)  enhanced when only a single form of carbohydrate is present. 
C)  enhanced if high intensity exercise accompanies it. 
D)  regulated by the body at a constant rate of 80-90 percent in 15-20 minutes. 
A)  enhanced when glucose and sodium are also present. 
B)  enhanced when only a single form of carbohydrate is present. 
C)  enhanced if high intensity exercise accompanies it. 
D)  regulated by the body at a constant rate of 80-90 percent in 15-20 minutes. A

Question 2

When you are exercising in the heat and sweating, the concentration of electrolytes in the blood and
other body fluids actually decreases.

Accepted Answer

A) True 
 B)False  False

Question 3

Which of the following statements regarding hyponatremia during exercise is FALSE?

Accepted Answer

A)  it is more common in faster runners who complete marathons in 3 hours or less 
B)  it is more common in females than in males 
C)  it is more common in heat-unacclimatized than heat-acclimatized individuals 
D)  it is more common in individuals who consume excessive amounts of plain water before, during and after exercise 
E)  it is more common in individuals with high sweat sodium concentrations 
A)  it is more common in faster runners who complete marathons in 3 hours or less 
B)  it is more common in females than in males 
C)  it is more common in heat-unacclimatized than heat-acclimatized individuals 
D)  it is more common in individuals who consume excessive amounts of plain water before, during and after exercise 
E)  it is more common in individuals with high sweat sodium concentrations A

Question 4

If one has been following a schedule of physical training, there should be no deterioration of exercise
performance when hot temperatures arrive, even by an unacclimatized individual.

Accepted Answer

A) True 
 B)False

Question 5

How much water is necessary per day to maintain adequate water balance in the average adult?

Accepted Answer

A)  1 quart 
B)  2-3 quarts 
C)  1 liter 
D)  2 milliliters per Calorie of energy intake 
A)  1 quart 
B)  2-3 quarts 
C)  1 liter 
D)  2 milliliters per Calorie of energy intake

Question 6

Gastric emptying is

Accepted Answer

A)  adversely affected by fluids with less than an 8 percent concentration of carbohydrates. 
B)  generally enhanced by fluids with a higher osmolality. 
C)  affected greatly by the volume of fluid ingested. 
D)  enhanced by ingesting warm fluids rapidly. 
A)  adversely affected by fluids with less than an 8 percent concentration of carbohydrates. 
B)  generally enhanced by fluids with a higher osmolality. 
C)  affected greatly by the volume of fluid ingested. 
D)  enhanced by ingesting warm fluids rapidly.

Question 7

Recommendations for fluid intake during exercise, according to the American College of Sports Medicine include:

Accepted Answer

A)  20-30 mEq of sodium 
B)  60-100 mEq of sodium 
C)  10-20 mEq of potassium 
D)  25-50 mEq of potassium 
A)  20-30 mEq of sodium 
B)  60-100 mEq of sodium 
C)  10-20 mEq of potassium 
D)  25-50 mEq of potassium

Question 8

An electrolyte deficiency could impair physical performance; therefore, supplements, above normal
electrolyte nutrition enhance performance.

Accepted Answer

A) True 
 B)False

Question 9

An obese individual will have a greater percentage of their weight as water compared to a muscular
individual.

Accepted Answer

A) True 
 B)False

Question 10

A high relative humidity and sunshine hinder heat loss from the body by their adverse effects on the body, respectively, as:

Accepted Answer

A)  increased condensation and radiation 
B)  increased convection and radiation 
C)  decreased evaporation and increased radiation 
D)  decreased condensation and decreased radiation 
E)  increased evaporation and increased convection 
A)  increased condensation and radiation 
B)  increased convection and radiation 
C)  decreased evaporation and increased radiation 
D)  decreased condensation and decreased radiation 
E)  increased evaporation and increased convection

Question 11

Individuals who have experienced previous heat injury may have lost the ability for the circulatory
system to adjust to the heat stress, possibly because temperature-regulating centers in the brain have been irreversibly damaged.

Accepted Answer

A) True 
 B)False

Question 12

Calculate the increase in the body temperature, in degrees Celsius, that would occur if an individual was unable to dissipate heat and was exercising at an intensity of 3 liters of oxygen per minute for 20 minutes. The athlete weighs 60 kg, her mechanical efficiency is 20 percent, and the specific heat of her body is 0.83.

Accepted Answer

A)  2.2 
B)  4.8 
C)  10.2 
D)  6.0 
E)  9.4 
A)  2.2 
B)  4.8 
C)  10.2 
D)  6.0 
E)  9.4

Question 13

An electrolyte is a substance that, in solution, conducts an electric current and usually dissociates into ions, particles carrying either a negative or a positive electric charge.

Accepted Answer

A) True 
 B)False

Question 14

Chloride is the major negative ion in the extra cellular fluids and works with sodium in the regulation
of body-water balance and electrical potentials across cell membranes.

Accepted Answer

A) True 
 B)False

Question 15

Higher intensity exercise increases blood flow to the intestines, which will in all probability increase
absorption.

Accepted Answer

A) True 
 B)False

Question 16

Body sodium levels are largely regulated through:

Accepted Answer

A)  changes in intestinal absorption, depending on need 
B)  changes in fecal excretion 
C)  storage of excess sodium in the liver 
D)  excretion or absorption by the kidney 
A)  changes in intestinal absorption, depending on need 
B)  changes in fecal excretion 
C)  storage of excess sodium in the liver 
D)  excretion or absorption by the kidney

Question 17

Young children are at a greater risk of developing a heat injury than adults.

Accepted Answer

A) True 
 B)False

Question 18

In susceptible persons, high blood pressure may be associated with prolonged excessive intake of:

Accepted Answer

A)  potassium 
B)  magnesium 
C)  iron 
D)  vitamin A 
E)  sodium 
A)  potassium 
B)  magnesium 
C)  iron 
D)  vitamin A 
E)  sodium

Question 19

The three factors that contribute to heat injuries are increased core temperature, loss of body fluids,
and loss of electrolytes.

Accepted Answer

A) True 
 B)False

Question 20

The human body temperature may be influenced in which of the following ways?

Accepted Answer

A)  Infectious disease might decrease heat production 
B)  Body heat is transported from the core to the shell by convection and radiation 
C)  The autonomic division of the central nervous system controls the body temperature 
D)  The heat balance equation shows that evaporation may or may not add to the loss of heat from the body 
A)  Infectious disease might decrease heat production 
B)  Body heat is transported from the core to the shell by convection and radiation 
C)  The autonomic division of the central nervous system controls the body temperature 
D)  The heat balance equation shows that evaporation may or may not add to the loss of heat from the body

Intestinal absorption of water is

When you are exercising in the heat and sweating, the concentration of electrolytes in the blood and other body fluids actually decreases.

Which of the following statements regarding hyponatremia during exercise is FALSE?

If one has been following a schedule of physical training, there should be no deterioration of exercise performance when hot temperatures arrive, even by an unacclimatized individual.

How much water is necessary per day to maintain adequate water balance in the average adult?

Gastric emptying is

Recommendations for fluid intake during exercise, according to the American College of Sports Medicine include:

An electrolyte deficiency could impair physical performance; therefore, supplements, above normal electrolyte nutrition enhance performance.

An obese individual will have a greater percentage of their weight as water compared to a muscular individual.

A high relative humidity and sunshine hinder heat loss from the body by their adverse effects on the body, respectively, as:

Individuals who have experienced previous heat injury may have lost the ability for the circulatory system to adjust to the heat stress, possibly because temperature-regulating centers in the brain have been irreversibly damaged.

An electrolyte is a substance that, in solution, conducts an electric current and usually dissociates into ions, particles carrying either a negative or a positive electric charge.

Chloride is the major negative ion in the extra cellular fluids and works with sodium in the regulation of body-water balance and electrical potentials across cell membranes.

Higher intensity exercise increases blood flow to the intestines, which will in all probability increase absorption.

Body sodium levels are largely regulated through:

Young children are at a greater risk of developing a heat injury than adults.

In susceptible persons, high blood pressure may be associated with prolonged excessive intake of:

The three factors that contribute to heat injuries are increased core temperature, loss of body fluids, and loss of electrolytes.

The human body temperature may be influenced in which of the following ways?

Introduction to Nutrition for Health, Fitness, and Sports Performance

Healthful Nutrition for Fitness and Sport: the Consumer Athlete

Human Energy

Carbohydrates: the Main Energy Food

Fat: an Important Energy Source During Exercise

Protein: the Tissue Builder

Vitamins: the Organic Regulators

Minerals: the Inorganic Regulators

Body Weight and Composition for Health and Sport

Weight Maintenance and Loss Through Proper Nutrition and Exercise

Weight Gaining Through Proper Nutrition and Exercise

Food Drugs and Related Supplements

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Exam 9: Water, Electrolytes and Temperature Regulation

Intestinal absorption of water is

When you are exercising in the heat and sweating, the concentration of electrolytes in the blood and other body fluids actually decreases.

Which of the following statements regarding hyponatremia during exercise is FALSE?

If one has been following a schedule of physical training, there should be no deterioration of exercise performance when hot temperatures arrive, even by an unacclimatized individual.

How much water is necessary per day to maintain adequate water balance in the average adult?

Gastric emptying is

Recommendations for fluid intake during exercise, according to the American College of Sports Medicine include:

An electrolyte deficiency could impair physical performance; therefore, supplements, above normal electrolyte nutrition enhance performance.

An obese individual will have a greater percentage of their weight as water compared to a muscular individual.

A high relative humidity and sunshine hinder heat loss from the body by their adverse effects on the body, respectively, as:

Individuals who have experienced previous heat injury may have lost the ability for the circulatory system to adjust to the heat stress, possibly because temperature-regulating centers in the brain have been irreversibly damaged.

An electrolyte is a substance that, in solution, conducts an electric current and usually dissociates into ions, particles carrying either a negative or a positive electric charge.

Chloride is the major negative ion in the extra cellular fluids and works with sodium in the regulation of body-water balance and electrical potentials across cell membranes.

Higher intensity exercise increases blood flow to the intestines, which will in all probability increase absorption.

Body sodium levels are largely regulated through:

Young children are at a greater risk of developing a heat injury than adults.

In susceptible persons, high blood pressure may be associated with prolonged excessive intake of:

The three factors that contribute to heat injuries are increased core temperature, loss of body fluids, and loss of electrolytes.

The human body temperature may be influenced in which of the following ways?

Introduction to Nutrition for Health, Fitness, and Sports Performance

Healthful Nutrition for Fitness and Sport: the Consumer Athlete

Human Energy

Carbohydrates: the Main Energy Food

Fat: an Important Energy Source During Exercise

Protein: the Tissue Builder

Vitamins: the Organic Regulators

Minerals: the Inorganic Regulators

Body Weight and Composition for Health and Sport

Weight Maintenance and Loss Through Proper Nutrition and Exercise

Weight Gaining Through Proper Nutrition and Exercise

Food Drugs and Related Supplements

Filters