Quizzes 2 Flashcards
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
HR does not change 6bpm for 2min
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
d) all the above
Predicting one’s VO2 max can be valuable for making exercise prescriptions
a) true
b) false
true
When estimating VO2max using the extrapolation/graphing method it is advised to plot two HR that fall between what values
120 bpm and 85% of HR
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
e) both a and b
How long will students step during the Queens College step test
a) 1 min
b) 2 min
c) 3 min
d) 4 min
c) 3 min
Calculate the heart rate reserve (HRR) for an individual with a HRmax of 200bpm and resting HR of 80bpm
HRR = HRmax-HRrest
HRR = 120bpm
Body mass index (BMI) is an adequate measurement of disease risk for individuals across any fitness level
a) true
b) false
b) false
In conjunction with BMI, _________ is used to assess health risk and is valuable in assessing central obesity
waist measurement
Subject A has a body mass of 50kg and a body fat percentage of 10%. What is their lean body mass in kg?
% body fat = (495/body density) -450
The interrelationship among energy availablity, menstrual funciton, and bone mineral density is referred to as the _________
athlete triad
How many skinfold sites will be in the body composition lab
7 sites
List 2 potential sources of error involved in the skinfold method for assessment of body composition
- accurate location of where the skinfold test is performed
- how trained the technician is
The ________ corresponds to how many standard deviations away your MBD is compared to the mean for a healthy young adult of the same sex
T-score
The ______ corresponds to how many standard deviations away your MBD value is compared to the mean for your age, sex, and ethnicity
Z-score
Mean arterial pressure represents the ______ pressure in the arteries during a cardiac cycle
a) total
b) average
c) highest
d) lowest
b) average
High blood pressure always results in acute symptoms
a) true
b) false
false
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
both A and B
During a GXT, the _________ is used to indicate the heart’s ability to function normally under increased myocardial oxygen demand
ECG
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
a) normotensive
During the lab procedure, what are the two positions in which we will be taking resting blood pressure
both sitting and standing
* both with arm at the same level as the heart with uncrossed legs
You record the following data at rest: systolic BP =100, diastolic BP = 70, What is the pulse pressure?
PP = sBP - dBP
PP = 30
How does systolic blood pressure change with increased exercise intensity
a) increases
b) decreases
c) stays consistent
increases
Normal core body temperature is around what temperature
37 degrees celcius
list two mechanisms of heat transfer
convection, radiation
The body always loses heat through all four mechanisms of heat transfer
a) true
b) false
false
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
all of the above
Using the information below calculate the amount of energy lost to heat (kcal): given total kcal produced: 100kcal and cycling efficiency: 20%
100 kcal * 0.2 = 20kcal
100-20 =80kcal
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
acclimitization
Exercise plus heat stress may reduce plasma volume more than exercise alone. why?
because with heat stress on an individual you will sweat more and therefore will reduce plasma volume more as compared to just exercise alone
How many minutes will students exercise during the thermoregulatory lab
40 minutes
Approximately what altitude are we stimulating in today’s lab
pikes peak (14,110 ft above sea level)
list the two conditions under which hypoxia will be administered during the lab procedure
resting and submax exercise
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
barometric pressure
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
c) near the top of the curve, small changes in PaO2 have minimal effects on SaO2
The amount of oxygen dissolved in the plasma is extremely small compared to the amount bould to hemoglobin
a) true
b) false
a) true
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
b) maximum HR at VO2max
The percentage of oxygen in Boulder is less than at sea level
a) true
b) false
b) false
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
cardiac output
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
elite endurance athletes
