Lab quizzes 6-10

Question 1

how do you determine if a subject has reached steady state in submaximal HR (lab 6)

Answer 1

HR does not change 6 bpm for 2 consecutive minutes

Question 2

based on ACSM position stand which of the following would be expected to result in health benefits

Answer 2

meeting ACSM guidelines for physical activity
reducing time spent in sedentary pursuits
breaking up prolonged periods of sedentary behavior

Question 3

T/F: predicting one’s VO2 max can be valuable for making exercise conditions

Answer 3

true

Question 4

when estimating VO2 max using the extrapolation/graphing method it is advised to plot two HRs that fall between what values

Answer 4

greater than 120 bpm but less than 85% of HRmax

Question 5

how long will students step during Queens College step test

Answer 5

3 minutes

Question 6

which methods will be used to predict VO2 max in lab 6

Answer 6

nonexercise VO2 max prediction
submax HR extrapolation

Question 7

calculate the HRR for an individual with a HR max of 200 bpm and a resting HR of 80 bpm

Answer 7

120 bpm

Question 8

T/F: BMI is an adequate measurement of disease risk for individuals across any fitness level

Answer 8

false

Question 9

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

Answer 9

waist circumfrence

Question 10

the interrelationship among energy availability, menstrual function, and bone mineral density is referred to as the

Answer 10

athlete triad

Question 11

how many skinfold sites are used in lab 10 (body comp)

Answer 11

7

Question 12

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

Answer 12

accuracy of skinfold measurement
technician training

Question 13

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

Answer 13

45

Question 14

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

Answer 14

t score

Question 15

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

Answer 15

z score

Question 16

mean arterial pressure represents the _____ pressure in the arteries during a cardiac cycle

Answer 16

average

Question 17

T/F: high blood pressure always results in acute symptoms

Answer 17

false

Question 18

aerobic training decreases blood pressure in what conditions

Answer 18

rest and submaximal exercise at the same maximal intensity

Question 19

what would a resting BP of 116/79 be classified as

Answer 19

normotensive

Question 20

during GXT, the _______ is used to indicate the hearts ability to function normally under increased myocardial O2 demand

Answer 20

ECG

Question 21

during the lab procedure, what are the two positions in which we will be taking BP

Answer 21

standing and sitting

Question 22

you record the following data at rest: systolic=100 and diastolic = 70 what is PP

Answer 22

30 mmHg

Question 23

how does systolic BP change with increased exercise intensity

Answer 23

increases

Question 24

normal core body temperature is around what temperature

Answer 24

37

Question 25

list 2 mechanisms of heat transfer

Answer 25

conduction and convection

Question 26

T/F: the body always loses heat through all four mechanisms of heat transfer

Answer 26

false

Question 27

body mass loss during exercise can occur from what mechanism

Answer 27

sweat loss
metabolic mass loss
respiratory water loss
urinary water loss

Question 28

using the information below, calculate the amount of energy lost to heat
total kcal produced: 100 kcal
cycling efficiency: 20%

Answer 28

80 kcals lost to heat

Question 29

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

Answer 29

acclimitization

Question 30

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

Answer 30

because heat stress increases sweat rate

Question 31

how many minutes do students exercise in thermoregulation lab

Answer 31

40 min

Question 32

approximately what altitude are we stimulating in todays lab

Answer 32

pikes peak (14,110 ft above sea level)

Question 33

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

Answer 33

rest and submaximal exercise

Question 34

when determining inspiratory partial pressure of O2 (PiO2), which parameters are dependent on altitude

Answer 34

Pb

Question 35

which statement best explains the shape advantages of the Hb-O2 dissociation curve at sea level

Answer 35

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

Question 36

T/F: the amount of O2 dissolved in the plasma is extremely small compared to the amount bound to Hb

Answer 36

true

Question 37

what variable would not be affected from sea level to acute high altitude exposure

Answer 37

HR max at Vo2 max

Question 38

T/F: the percentage of O2 in Boulder is less than at sea level

Answer 38

False

Question 39

which of the following parameters does not contribute directly to CaO2

Answer 39

cardiac output

Question 40

which of the following populations would be expected to have a larger percent decrease in VO2 max at 20,000 ft

Answer 40

elite endurance trained athletes