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IB C129 > Chapter 4: Assessing Cardiorespiratory Fitness > Flashcards

Chapter 4: Assessing Cardiorespiratory Fitness Flashcards

1
Q

What is the most important component of physical fitness?

A

cardiorespiratory endurace

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2
Q

What is cardiorespiratory endurance?

A

“ability to perform dynamic exercise involving large groups of muscles at mod to high intensity for prolonged periods”

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3
Q

What is VO2 max?

A

maximum oxygen uptake

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4
Q

What is the most valid measure of functional capacity of the cardiorespiratory system?

A

VO2 max

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5
Q

What does VO2 max reflect?

A

capacity of heart, lungs, and blood to deliver oxygen to the working muscles during dynamic exercise

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6
Q

Is a “plateau phenomenon” a prereq for identifying true VO2 max?

A

No

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7
Q

What is VO2 peak?

A

the highest rate of oxygen consumption measured during the text (does not necessarily = VO2 max)

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8
Q

What is Absolute VO2?

A

measured in liters per minute (directly related to body size)
aka just a final value

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9
Q

What is Relative VO2?

A

used to classify an individual’s cardiorespiratory fitness level or compare fitness (takes various body sizes in account)
aka gives a rating based on body weight

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10
Q

What test should you perform before the state of a vigorous exercise program if they are high risk with s/sxs?

A

graded maximal test

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11
Q

What test should you perform before the state of a vigorous exercise program if they are low risk?

A

submaximal test

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12
Q

What are some pros of doing a submaximal testing?

A
  • less costly
  • less time-consuming
  • still gives reasonable estimate
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13
Q

What are some cons of doing a submaximal test?

A
  • less sensitive as diagnostic tool for heart disease
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14
Q

If VO2 plateau does not appear, what other factors indicate VO2 max?

A
  • failure of HR increase with increase intensity
  • venous lactate concentration > 8mmol
  • respiratory exchange ratio (RER) > 1.15
  • rating of perceived exertion (RPE) > 17
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15
Q

T/F: Maximal exercise tests are no more dangerous than submaximal tests (provided you follow guidelines and correctly monitor)

A

True

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16
Q

What is moderate intensity on the Borg scale?

A

12-14

17
Q

What are RPEs used for?

A

determine endpoints of GXT

18
Q

What are some indications for terminating an exercise test?

A
  • angina
  • drop in systolic BP from baseline BP despite increase in workload
  • excessive rise in BP
  • shortness of breath, wheezing, leg cramps, etc.
  • change in heart rhythm
  • client request to stop
19
Q

What is a continuous exercise test?

A

no rest in between work increments

20
Q

What are discontinuous exercise tests?

A

the client rests 5-10 minutes between workloads

21
Q

What is the VO2 max different between cycle ergometer tests and treadmill tests?

A

VO2 max for cycle was 6%-11% lower than for treadmill

22
Q

What speed does the client need to go at for the leg and arm ergometry GXT for it to be accurate?

A

client needs to attain aa steady state during the maximal GXT test

23
Q

What does the bench stepping maximal GXT need to be adjusted for?

A

step height and stepping rate for differences in body weight

this makes standardization of the work extremely difficult

24
Q

What do you monitor during submax tests?

A

HR BP and PRE

25
Q

What are the assumptions of submax GXTs?

A
  • a steady stage HR is achieved and consistent for each exercise work rate
  • a linear relationship between VO2 and HR within range of 110 to 150
  • mechanical efficiency during cycling or treadmill exercise is constant for all individuals (but a client w poor mechanical efficiency while cycling has higher submax HR at a given workload, and his actual VO2 max is underestimated)
  • HRmax for similar aged clients is similar (even though age only accounts for 80% of one’s HRmax)
26
Q

Is VO2 max over or underestimated in submax tests?

A

overestimated for highly trained individuals and underestimated for untrained, sedentary individuals

27
Q

What is the least desirable way of assessing aerobic fitness?

A

Field tests, they should not be used for diagnostic purposes

28
Q

How long should distance runs be in order to assess aerobic function?

A

at least 9 mins - 12 mins

29
Q

What does the validity of step tests depend on?

A

obesity, height, fitness level, and the accurate measurement of HR
step tests are usually less valid than distance run tests

30
Q

What tests are good for children and older adults?

A

a treadmill protocol that increases grade rather than speed

IB C129 (11 decks)

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