Question 1

What is the predominant fuel used by muscle cells during low- or moderate-intensity activity?

Accepted Answer

A) Fat 
B) Protein 
C) Glycogen 
D) Blood glucose

Question 2

How much time spent in vigorous activity is usually needed to deplete glycogen reserves?

Accepted Answer

A) 1 hour 
B) 2 hours 
C) 3 hours 
D) 4 hours

Question 3

For female endurance athletes,about how much more protein above the RDA is recommended by recognized health organizations?

Accepted Answer

A) 10-20% 
B) 25-35% 
C) 50-75% 
D) 100-150%

Question 4

A person engaging in a vigorous level of physical activity would walk at a minimum pace of

Accepted Answer

A) 1.5 mph. 
B) 3.2 mph. 
C) 4.6 mph. 
D) 7.5 mph.

Question 5

Your friend Bob,who engages in endurance exercise throughout the week,is concerned that his protein intake is inadequate and asks what type of protein supplement he should take.You assure him that

Accepted Answer

A) all high-quality protein drinks are equivalent despite the price differences. 
B) the extra protein he needs should be high-quality lean sources of poultry and fish. 
C) he most likely already gets more protein from his regular diet than he needs,even for endurance activity. 
D) no sports authority organizations recommend protein intakes greater than the RDA for endurance athletes.

Question 6

Chris has been competing all day in a track competition and is now ready for the 100-meter dash.Although he feels tired,which of the following high-energy muscle compounds can he rely on for quick energy in this event?

Accepted Answer

A) Fat 
B) Lactate 
C) Creatine phosphate 
D) Adenosine diphosphate

Question 7

Which of the following represents current knowledge of the role of vitamin and mineral supplements in physical performance?

Accepted Answer

A) When taken right before an event,they have been shown to benefit performance 
B) Moderate amounts have been shown to improve the performance of most elite athletes 
C) They may be beneficial for athletes who struggle to meet their energy requirements 
D) Except perhaps for iron,they are needed in high amounts to meet the needs of athletes exposed to hot and humid weather conditions

Question 8

What high-energy compound acts as a reservoir of energy for the maintenance of a steady supply of ATP?

Accepted Answer

A) Glycerol 
B) Glycogen 
C) Fatty acids 
D) Creatine phosphate

Question 9

A common side effect of chronic creatine supplementation is

Accepted Answer

A) diarrhea. 
B) weight gain. 
C) greater endurance. 
D) reduced endurance.

Question 10

Which of the following is a characteristic of fuel use by muscles?

Accepted Answer

A) At rest,about 90% of the fuel is derived from glucose 
B) At rest,about 90% of the fuel is derived from fat 
C) Muscles always use a mixture of fuels at rest or during physical activity 
D) During physical activity,amino acids contribute most of the fuel

Question 11

Which of the following components of training define(s)the progressive overload principle?

Accepted Answer

A) Intensity only 
B) Frequency only 
C) Frequency and flexibility only 
D) Intensity,frequency,and duration only

Question 12

The duration of exercise warm-up and cool-down periods should be

Accepted Answer

A) 1-2 minutes each. 
B) 5-10 minutes each. 
C) 15 minutes each. 
D) 2 minutes warm-up and 4 minutes cool-down.

Question 13

Carbohydrate loading involves the consumption of a high-carbohydrate diet plus

Accepted Answer

A) no exercise. 
B) light exercise. 
C) intense exercise. 
D) moderate exercise.

Question 14

Which of the following is an effect of exercise on protein metabolism?

Accepted Answer

A) Protein synthesis is inhibited during exercise 
B) Protein use as a fuel is lowest in endurance athletes 
C) Protein use during physical performance is generally not related to carbohydrate content of the diet 
D) Protein synthesis is increased slightly during exercise but thereafter diminishes by a like amount to remain in balance

Question 15

During the first 20 minutes of moderate exercise,the body uses about

Accepted Answer

A) 50% of the available fat. 
B) 10% of the available water. 
C) 90% of the available protein. 
D) 20% of the available glycogen.

Question 16

Which of the following is an example of a resistance training activity?

Accepted Answer

A) Yoga 
B) Swimming 
C) Power walking 
D) Lifting free weights

Question 17

Which of the following is a feature of sports anemia?

Accepted Answer

A) It is not a true iron-deficiency anemia 
B) It is usually corrected by iron supplementation 
C) It is found primarily in over-conditioned athletes 
D) It is associated with reduced cardiorespiratory fitness

Question 18

Which of the following is a characteristic of human growth hormone use in athletes?

Accepted Answer

A) Excessive use shortens life span 
B) Low cost accounts for some of its popularity 
C) Excessive use leads to shrinking of internal organs 
D) Laboratory tests can differentiate between the naturally occurring form and the drug form of growth hormone

Question 19

The recommended amount of dietary carbohydrate (g/kg body weight)for an athlete training for a marathon is approximately

Accepted Answer

A) 2. 
B) 4. 
C) 8. 
D) 12.

Question 20

Which of the following describes the role of protein in the diet of competitive athletes?

Accepted Answer

A) The need for protein per kg body weight is higher in female athletes than in male athletes 
B) The need for protein is best met by increasing the level to 20-25% of the total energy content of the diet 
C) The need for protein in weight lifters and marathon runners may be up to 50-100% higher than the RDA 
D) The need for protein in most athletes generally could NOT be met from diets meeting energy requirements but providing only 10% of the energy as protein

Exam 14: Fitness: Physical Activity, nutrients, and Body Adaptations