Ch. 12

Question 1

describe exercise

Answer 1

leisure physical activity that is purposeful, planned, and structured

Question 2

what is not a physiological effect of regular physical activity

Answer 2

decreases high-density lipoprotein cholesterol

Question 3

approximately _____ of americans report that they do not engage in any leisure time activity

Answer 3

25 percent

Question 4

the institute of medicine recommends a minimum of _____ minutes of physical activity each day for adults

Answer 4

60

Question 5

physical activity not related to a person’s occupation is defined as _____

Answer 5

leisure time physical activity

Question 6

the top of the physical activity pyramid emphasizes activities that _____

Answer 6

we should do less of such as watching tv

Question 7

marco wants to improve his cardiorespritory fitness. what type of activity would help him achieve his goal

Answer 7

aerobics class three times a week

Question 8

what is meant by the overload principle

Answer 8

improving fitness by placing extra physical demand on the body

Question 9

after completing an exercise session, adequate hydration in an athlete is best determined by _____

Answer 9

urine that is light yellow in color

Question 10

to achieve cardiorespiratory fitness, you should train more than _____ days a week

Answer 10

2

Question 11

the FIT principle is _____

Answer 11

the principle that a good physical fitness program should be based on frequency, intensity, and time.

Question 12

what is traditionally used to evaluate the level of intensity of aerobic activity

Answer 12

heart rate

Question 13

to achieve moderate intensity physical activity, the centers for disease control and prevention reccomends a target heart rate of 50 to _____ percent of an individuals maximal heart rate

Answer 13

70

Question 14

what type of exercise would creatine phosphate (CP) be an important source of energy

Answer 14

sprinting in the 100 meter race

Question 15

during exercise what sources are used by the body for glucose

Answer 15

glycogen stored in skeletal muscles

Question 16

the primary end product of glycolysis is

Answer 16

pyruvic acid

Question 17

the amount of ATP that can be produced in glycolysis can maintain eercise for no more than _____ minutes

Answer 17

3

Question 18

when oxygen is scarce, cellular pyruvic acid will be converted to _____

Answer 18

lactic acid

Question 19

what is false concerning aerobic metabolism

Answer 19

it leads to muscle fatigue

Question 20

what is not true about cool-down exercise after an exercise session

Answer 20

helps digestion later on

Question 21

fatty acid molecules provide much of the energy for

Answer 21

long term activity such as walking

Question 22

what best describes how ATP provides energy to the body’s cells

Answer 22

energy is releasedwhen a phosphate group is cleaved from the ATP molecule

Question 23

the major fuel source used by the working muscle during long duration physical activity is

Answer 23

fatty acids

Question 24

what is not a reason fat becomes an energy source for trained athletes

Answer 24

replaces carbohydrates as an energy source dduring prolonged, intense training

Question 25

where in the body do we find the greatest torage of potential energy

Answer 25

body fat

Question 26

at rest, the bodys fuel source is primarily

Answer 26

fat

Question 27

our bodies store glycogen at the highest rate _____ hours after exercise

Answer 27

24

Question 28

When would carbohydrate loading not be beneficial

Answer 28

weightlifting

Question 29

what is not a side effect of carbohydrate loading

Answer 29

improved performance

Question 30

what best dexcribes dr. barry sears the zone diet

Answer 30

high-protein diet designed for competitive athletes

Question 31

in physical activity lasting less than 1 hour, the ost appropriate fluid replacement is _____

Answer 31

plain water

Question 32

what ergogenic aid has been banned in the US

Answer 32

gamma-hydroxybutyric acid GHB

Question 33

what is the cause of sports anemia

Answer 33

increased plasma volume due to training

Question 34

some athletes believe that caffeine can enhance athletic performance because it has been sow to

Answer 34

increase the use of fatty acids as a fuel source

Question 35

why are the B vitamins especially important to an athlete

Answer 35

the B vitamins are directly involved in energy metabolism