Quizzes Flashcards
Is body mass index an adequate measurement of diseases risk for individuals across any fitness level?
No
In conjunction with BMI, what is used to assess health risk and is valuable in assessing central obesity
Waist circumference
What is the interrelationship among energy availability, menstrual function, and bone mineral density referred to?
The athlete triad
How many skin fold sites are assessed
7
What are two potential sources of error involved in the skinfold method for assessment of body composition
Subcutaneous fat not representing total body fat
Incorrect positioning of measurement of skinfold
Subject A has a body mass of 50 kg and body fat percentage of 10%, what is their lean body mass in kg?
50 kg x 0.1 = 5; 50 -5= 45
What corresponds to how many standard deviations away from your BMd is compared to the mean for a healthy young adult of the same sex?
T-score
What corresponds to how many standard deviations away you BMD value is compared to the mean for your age sex and ethnicity
Z-score
How do you determine if a subject has reached steady state in submaximal heart rate?
When HR does not change 6 bpm for 2 consecutive minutes
Based on the ACSM position stand, which of the following would be expected to result in health benefits
Meeting SCSM exercise guidelines for physical activity; reducing time spent in sedentary pursuits; breaking up prolonged periods of sedentary behavior
Predicting ones VO2 max can be valuable for making exercise prescriptions
True
When estimating VO2 max using the extrapolation/graphing method it is advised to plot the two heart rates to fall between what values
120 bpm and 85% of max rate
How long do students step for the Queens step test?
3 minutes
Which methods will be used to predict VO2 max in todays lab
Non exercise VO2 max prediction; Submax heart rate extrapolation
Calculate the heart rate reserve HRR for an individual with an HR max of 200 bpm and a resting HR of 80 bpm
200-80= 120 HRR
Approximately what altitude are we simulating in todays lab/
Altitude of 14000 ft simulating pikes peak
List two conditions which hypoxia will be administered during the lab procedure.
Resting and exercising on the bike erg
When determininginspiring partial pressure of oxygen which parameters are dependent on altitude
Barometric pressure only
Which statement best explains the shape advantages of hemoglobin oxygen dissociation crude at sea level
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 bound to hemoglobin (T/F)
True
Which of the following variables would not be affected from sea level to acute high altitude exposure?
Maximum heart rate @ VO2 max
Is the percentage of oxygen in boulder less than at sea level?
No- why?
Which of the parameters does not contribute directly to arterial oxygen consumption CaO2
Cardiac output
Which of the following populations would be expected to have a larger percent decrease in VO2 max at 20,000 feet?
Elite endurance athletes
You record the following data at rest: systolic BP = 100, diastolic BP= 70, what is the pulse pressure
100-70=30 PP
How does systolic BP change with increased exercise intensity?
Increases
