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True or False
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1
Insensible perspiration is fluid lost due to physical activity.
A)True
B)False
2
Solid foods can contribute as a source of water.
A)True
B)False
3
The primary route for daily fluid losses is perspiration.
A)True
B)False
4
Water may be a dietary source of some essential minerals.
A)True
B)False
5
Muscle glycogen breakdown yields water.
A)True
B)False
6
Most water stored in the body is extracellular fluid.
A)True
B)False
7
Obese individuals have a higher body water percentage than lean, muscular individuals.
A)True
B)False
8
Hormones regulate water balance in the body.
A)True
B)False
9
Water is needed for all of the senses - vision, hearing, smell, taste - to function.
A)True
B)False
10
Natural foods have more sodium than processed foods.
A)True
B)False
11
Core temperature is the temperature of the skin.
A)True
B)False
12
Hyperthermia is increased body temperature.
A)True
B)False
13
Exercise decreases the metabolic rate.
A)True
B)False
14
Only sweat that evaporates has a cooling effect.
A)True
B)False
15
Two people with the same body weight, training and activity will have the same sweat rate.
A)True
B)False
16
The more dehydrated someone is, the greater his/her athletic performance will be adversely affected.
A)True
B)False
17
Adequate hydration will improve physical performance during prolonged exercise under warm conditions.
A)True
B)False
18
If equally well-trained, females tolerate exercise in the heat as well as males.
A)True
B)False
19
Everybody has blood pressure.
A)True
B)False
20
High blood pressure is referred to as hypertension.
A)True
B)False
21
Adipose tissue is high in water content.
A)True
B)False
22
Electrolytes in solution can conduct an electric current.
A)True
B)False
23
To a point, the greater the volume of fluid ingested, the greater the rate of gastric emptying.
A)True
B)False
24
Body fluids are hypotonic to sweat.
A)True
B)False
25
Poor physical fitness can contribute to low tolerance to heat stress.
A)True
B)False
26
Water is an adequate fluid replacement product for many activities.
A)True
B)False
27
When fluid is lost from the body, electrolytes are also lost.
A)True
B)False
28
The current thinking suggests that the diuretic effect of caffiene in drinks such as coffee and colas may be offset by the amount of fluids contained in these beverages.
A)True
B)False
29
One of the potential health problems associated with bottled water is the absence of fluoride.
A)True
B)False
30
Sports drinks normally contain about 40-50 percent carbohydrate.
A)True
B)False
31
One of the major hormones involved in body water conservation is the antidiuretic hormone (ADH), which is secreted by the kidney and helps reabsorb water from the urinary bladder.
A)True
B)False
32
The major minerals, or electrolytes, found in sweat in the greatest concentration are calcium and iron.
A)True
B)False
33
The four physical means that the body used to dissipate heat are radiation, convection, condensation, and evaporation.
A)True
B)False
34
One liter of sweat, if it evaporates perfectly, will eliminate over 1,000 kilocalories from the body, thus helping to prevent an excessive rise in core temperature during exercise.
A)True
B)False
35
The WB in the WBGT is primarily a measure of radiant heat from the sun, while the G in the WBGT is a measure of relative humidity.
A)True
B)False
36
The National High Blood Pressure Education Program classifies a systolic blood pressure of 120 mmHg or a diastolic blood pressure of 80 as stage 1 of hypertension, or high blood pressure.
A)True
B)False
37
Because excessive concentrations of sodium in the body may disturb normal physiological functioning, the body possesses some very effective mechanisms to control its sodium content. Although most individuals regulate their body stores of sodium effectively, those who are sodium-sensitive may experience increased blood pressure levels with increased dietary intake of sodium.
A)True
B)False
38
Rehydration with cold water appears to be an effective technique to help mitigate (lessen) the rise in body temperature during exercise under warm environmental conditions.
A)True
B)False
39
The most potentially dangerous of all the heat injuries is heat stroke, for the core temperature may exceed 105° Fahrenheit or even higher, and may be fatal.
A)True
B)False
40
During exercise, about 75-80 percent of the energy produced is released as heat, so strenuous exercise may lead to a rapid rise in the core temperature; but, in most individuals the body temperature is usually regulated quite effectively during exercise.
A)True
B)False
41
One of the major hormones involved in body water conservation is the antidiuretic hormone (ADH), which is secreted by the kidney. Its target organ is the urinary bladder from which it helps reabsorb water.
A)True
B)False
42
The WB in the WBGT is primarily a measure of radiant heat from the sun, while the G in the WBGT is a measure of the relative humidity.
A)True
B)False
43
One of the major hormones involved in body water conservation is the antidiuretic hormone (ADH), which is secreted by the pituitary gland. Its target organ is the kidney and it helps reabsorb water.
A)True
B)False
44
The four physical means that the body uses to dissipate heat are radiation, convection, conduction, and evaporation.
A)True
B)False
45
One liter of sweat, if it evaporates perfectly, will eliminate about 580 kilocalories from the body, thus helping to prevent an excessive rise in core temperature during exercise.
A)True
B)False





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