Quizzes 2

Question 1

during the prediction and prescription lab how do you determine if a subject has reached “steady state” in submaximal HR
a) subject has exercised for 10 minutes
b) HR does not change 3bpm for 5min
c) HR does not change 6bpm for 2min
d) subject has exercised for 5 minutes

Answer 1

HR does not change 6bpm for 2min

Question 2

based on the ACSM Position stand, which of the following would be expected to result in health benefits
a) meeting ACSM’s exercise guidelines for physical activity
b) reducing time spent in sedentary persuits
c) breaking up prolonged periods of sedentary behavior
d) all the above
e) A and B

Answer 2

d) all the above

Question 3

Predicting one’s VO2 max can be valuable for making exercise prescriptions
a) true
b) false

Answer 3

true

Question 4

When estimating VO2max using the extrapolation/graphing method it is advised to plot two HR that fall between what values

Answer 4

120 bpm and 85% of HR

Question 5

Which method(s) will be using to predict VO2max in today’s lab
a) non exercise VO2 max prediction
b) submax HR extrapolation
c) indirect calorimetry
d) all the above
e) both a and b

Answer 5

e) both a and b

Question 6

How long will students step during the Queens College step test
a) 1 min
b) 2 min
c) 3 min
d) 4 min

Answer 6

c) 3 min

Question 7

Calculate the heart rate reserve (HRR) for an individual with a HRmax of 200bpm and resting HR of 80bpm

Answer 7

HRR = HRmax-HRrest
HRR = 120bpm

Question 8

Body mass index (BMI) is an adequate measurement of disease risk for individuals across any fitness level
a) true
b) false

Answer 8

b) false

Question 9

In conjunction with BMI, _________ is used to assess health risk and is valuable in assessing central obesity

Answer 9

waist measurement

Question 10

Subject A has a body mass of 50kg and a body fat percentage of 10%. What is their lean body mass in kg?

Answer 10

% body fat = (495/body density) -450

Question 10

The interrelationship among energy availablity, menstrual funciton, and bone mineral density is referred to as the _________

Answer 10

athlete triad

Question 11

How many skinfold sites will be in the body composition lab

Answer 11

7 sites

Question 12

List 2 potential sources of error involved in the skinfold method for assessment of body composition

Answer 12

1. accurate location of where the skinfold test is performed
2. how trained the technician is

Question 13

The ________ corresponds to how many standard deviations away your MBD is compared to the mean for a healthy young adult of the same sex

Answer 13

T-score

Question 14

The ______ corresponds to how many standard deviations away your MBD value is compared to the mean for your age, sex, and ethnicity

Answer 14

Z-score

Question 14

Mean arterial pressure represents the ______ pressure in the arteries during a cardiac cycle
a) total
b) average
c) highest
d) lowest

Answer 14

b) average

Question 15

High blood pressure always results in acute symptoms
a) true
b) false

Answer 15

false

Question 16

Aerobic training decreases blood pressure in which of the following conditions:
a) rest
b) submaximal exercise at the same absolute intensity
c) both A and B

Answer 16

both A and B

Question 17

During a GXT, the _________ is used to indicate the heart’s ability to function normally under increased myocardial oxygen demand

Answer 17

ECG

Question 18

What would be a resting blood pressure of 116/79 be classified as?
a) normotensive
b) prehypertensive
c) stage 1 hypertensive
d) stage 2 hypertensive

Answer 18

a) normotensive

Question 19

During the lab procedure, what are the two positions in which we will be taking resting blood pressure

Answer 19

both sitting and standing
* both with arm at the same level as the heart with uncrossed legs

Question 20

You record the following data at rest: systolic BP =100, diastolic BP = 70, What is the pulse pressure?

Answer 20

PP = sBP - dBP
PP = 30

Question 21

How does systolic blood pressure change with increased exercise intensity
a) increases
b) decreases
c) stays consistent

Answer 21

increases

Question 22

Normal core body temperature is around what temperature

Answer 22

37 degrees celcius

Question 23

list two mechanisms of heat transfer

Answer 23

convection, radiation

Question 24

The body always loses heat through all four mechanisms of heat transfer a) true b) false

Answer 24

false

Question 25

Body mass loss during exercise can occur from which of the following mechanisms a) sweat loss b) metabolic mass loss c) respiratory water loss d) urinary water loss e) all of the above

Answer 25

all of the above

Question 26

Using the information below calculate the amount of energy lost to heat (kcal): given total kcal produced: 100kcal and cycling efficiency: 20%

Answer 26

100 kcal * 0.2 = 20kcal 100-20 =80kcal

Question 27

Some athletes prepare for competitions in the hot weather by deliberately choosing to have some of their training outside during the hottest part of the day. What type of adaptation is this called a

Answer 27

acclimitization

Question 28

Exercise plus heat stress may reduce plasma volume more than exercise alone. why?

Answer 28

because with heat stress on an individual you will sweat more and therefore will reduce plasma volume more as compared to just exercise alone

Question 29

How many minutes will students exercise during the thermoregulatory lab

Answer 29

40 minutes

Question 30

Approximately what altitude are we stimulating in today's lab

Answer 30

pikes peak (14,110 ft above sea level)

Question 31

list the two conditions under which hypoxia will be administered during the lab procedure

Answer 31

resting and submax exercise

Question 32

when determining inspiratory and partial pressure of oxygen (PiO2) which parameter(s) is (are) dependent on altitude a) water vapor pressure (PH2O) b) barometric pressure (Pb) c) percentage of oxygen in the environment d) all of the above

Answer 32

barometric pressure

Question 33

Which statement best explains the shape advantages of the hemoglobin oxygen dissociation curve at sea level a) near the top of the curve, large changes in SaO2 have minimal effects on PiO2 b) near the top of the curve, large changes in PaO2 have large effects on SaO2 c) near the top of the curve, small changes in PaO2 have minimal effects on SaO2 d) near the top of the curve, small changes in PaO2 have large effects on CaO2

Answer 33

c) near the top of the curve, small changes in PaO2 have minimal effects on SaO2

Question 34

The amount of oxygen dissolved in the plasma is extremely small compared to the amount bould to hemoglobin a) true b) false

Answer 34

a) true

Question 35

Which of the following variables would not be affected from sea level to acute high altitude exposure a) ventilation (L/min) at an absolute submaximal workload b) maximum HR at VO2max c) HR at an absolute submaximal workload d) relative aerobic power (% VO2max) at an absolute submaximal workload

Answer 35

b) maximum HR at VO2max

Question 36

The percentage of oxygen in Boulder is less than at sea level a) true b) false

Answer 36

b) false

Question 37

Which of the following parameters does not contribute directly to arterial oxygen content (CaO2) a) hemoglobin concentration b) cardiac output c) arterial hemoglobin oxygen saturation d) dissolved oxygen

Answer 37

cardiac output

Question 38

which of the following populations would be expected to have a larger percent decrease in VO2max at 20,000 ft. a) untrained college students b) elite endurance athletes

Answer 38

elite endurance athletes