Exercise Physiology Quiz on VO2max

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Questions and Answers

What is the gold standard for measuring cardiorespiratory fitness?

heart rate at the conclusion of a 3-minute step test

time to complete a 1-mile run

directly measured maximal oxygen uptake VO2max (correct)

number of 12-inch steps completed in 3 minutes

Which units of measure are used for quantifying absolute VO2max?

ml·min-1 (correct)

ml·kg-1·min-1

ml·kgFFM-1·min-1

L·min-1 (correct)

When comparing cardiorespiratory fitness levels of individuals of different body sizes, which values are best to look at?

heart rate recovery times

breathing rates during exercise

relative VO2max values (correct)

absolute VO2max values

What is the risk of a graded maximal cardiorespiratory exercise test being fatal in the general population?

less than 1 in 10,000 Signup and view all the answers

What is the minimal intensity for a graded exercise test necessary for coronary heart disease screening?

85% of age-predicted maximal heart rate Signup and view all the answers

Is the OMNI scale used as an alternative to blood pressure measurements during a graded exercise test?

No, it is not an alternative. Signup and view all the answers

Which of the following would indicate terminating a graded exercise test before reaching the endpoint?

failure of heart rate to increase with increasing workload Signup and view all the answers

Which of the following is NOT an indication to terminate a graded exercise test before reaching the predetermined endpoint?

high respiratory rate Signup and view all the answers

What is the optimal duration to reach VO2max using a continuous protocol GXT?

8 to 12 minutes Signup and view all the answers

Which statement regarding the ACSM metabolic equations is true?

They should not be used to estimate VO2max. Signup and view all the answers

What is the equivalent of one watt in kilogram-meters per minute?

6 kilogram-meters per minute Signup and view all the answers

How does HRmax variability compare among individuals of the same age?

There is a significant variability. Signup and view all the answers

What is NOT an assumption for a submaximal exercise test to estimate VO2max?

Resting heart rates are similar among individuals. Signup and view all the answers

Which field test is most widely used to estimate running or walking distances?

1 mile to 1.5 miles Signup and view all the answers

What modification is recommended for GXT testing in older adults?

Extend the warm-up to more than 3 minutes. Signup and view all the answers

What does a clamped protocol require from the client?

To achieve a specific RPE value at each stage. Signup and view all the answers

Which assessment tool is considered suitable for health care professionals in an office setting?

STEP tool Signup and view all the answers

Are smart devices suitable for data collection when estimating maximal aerobic capacity?

No, they are not reliable. Signup and view all the answers

Study Notes

Cardiorespiratory Fitness Assessment

Maximal oxygen uptake (VO2max) is the gold standard for measuring cardiorespiratory fitness.
Absolute VO2max is quantified in liters per minute (L·min-1) and milliliters per minute (ml·min-1).
Relative VO2max is important for comparing different body sizes; it’s expressed as ml·kg-1·min-1.
VO2max values should be analyzed relatively to account for body size differences.

Graded Exercise Testing (GXT)

The risk of fatality during a graded maximal exercise test is less than 1 in 10,000.
For screening coronary heart disease, a minimum intensity of 85% of age-predicted maximal heart rate is recommended.
The OMNI scale is not a substitute for blood pressure measurements during a GXT.
Termination indicators for a GXT include failure of heart rate to increase with workload.

Exercise Protocols and Recommendations

An optimal duration for reaching VO2max during a continuous GXT ranges from 8 to 12 minutes.
ACSM metabolic equations estimate VO2 for steady-state work but are not suitable for estimating VO2max.
In electrically braked cycle ergometers, pedaling rate does not need to remain constant to maintain power output.
One watt is approximately equal to 6 kilogram-meters per minute.

Heart Rate and Fitness

Heart rate maximum (HRmax) varies significantly among individuals of the same age.
Individuals with excellent cardiorespiratory fitness exhibit a lower heart rate compared to those with poor fitness at the same submaximal workload.

Field Testing and Special Populations

Common field tests to estimate cardiorespiratory fitness cover distances between 1 mile to 1.5 miles.
The multistage 20-meter shuttle run test is most suitable for estimating VO2max in children, especially those around 12 years old.
Modifications for older adults during GXT include extending the warm-up and reducing stage duration.

Self-Paced Protocols and Tools

In self-paced treadmill protocols, clients adjust speed and incline to reach exhaustion in approximately 10 minutes.
Clamped protocols require achieving specific exertion levels at each test stage.
Convenient field assessments for healthcare professionals include the STEP tool and the 6-minute walk test, but smart devices are not suitable for data collection in these settings.

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Description

Test your knowledge on cardiorespiratory fitness and the measurement of VO2max with this engaging quiz. Explore different methods and units of measure for quantifying absolute VO2max and find out what really defines fitness levels in exercise physiology.