Lecture 3

Question 1

What is cardiorespiratory fitness?

Answer 1

It is related to the ability to perform large muscle, dynamic, moderate-to-vigorous intensity exercise for prolonged periods of time

Question 2

What are the gold standard for measuring CRF?

Answer 2

• Max volume of oxygen consumed per unit time-VO2max
• Measured in ml/kg/min (relative) or L/min (absolute)

Question 3

What is VO2 max?

Answer 3

HR linear relation to workload, multi-stage - increasing workload each time, last two workloads should see a plateau

Question 4

What is VO2 peak?

Answer 4

No pleatau, musculo fatigue before cardiovascualr fatigue

Question 5

What are the common equations for estimating HRmax?

Answer 5

Healthy people = 208-(0.7times age)
Broad range of age and fitness levels = 207-(0.7 times age)
Beta-blocker = 164-(0.7 times age)

Question 6

What is a max exercise test?

Answer 6

Exercise to volitional fatigue, go till failure

Question 7

What is a sub-maximal exercise test?

Answer 7

Client exercises to less than 85% of max (or predicted max) HR

Question 8

Who do we make the decision to use maximal vs submaximal?

Answer 8

Depends on:
-reason for test
- risk level of client
- availability of appropriate equipment and personnel
- appropriateness of working some individuals to the point of volitional fatigue

Question 9

What assumptions do we make when estimating VO2 max in submaximal test?

Answer 9

• Steady-state HR
• HR and work rate are a linear relationship
• Predicted max HR is accurate
• Mechanical efficiencies same for everyone
• Not on medications that alter HR response to exercise
• Not using high quantities of caffeine or high in temperature environment

Question 10

What are field tests?

Answer 10

• Can involve running, walking, stepping etc.
• Usually do not monitor HR, BP, and ECG during performance
• Require clients to accurately measure post-exercise HR

Question 11

What are examples of a field test?

Answer 11

• 1 mile fitness walking test
• 1.5 mile walk/run test
• 6 min walk test
• 20 metre shuttle run (beep test)

Question 12

What are lab tests?

Answer 12

• Treadmills, cycle ergometers, step testing
• HR, BP, ECG (in some cases)

Question 13

What are some examples of lab testing?

Answer 13

Astrand-rhyming cycle tests
Bruce protocol graded exercise test

Question 14

What is the bruce protocol treadmill tests?

Answer 14

Start at 1.7mph at 10%, then increase by 2% every 3 min, we want them to be able to last 6-12 minutes, if they can’t last 6 min, use the modified protocol

Question 15

What do you use when calculating CRF?

Answer 15

VO2 max = formula
Submaximal = Nomograms/Graphing