Aerobic Testing 2.0 Flashcards
(50 cards)
Submaximal, indirect aerobic fitness tests can occur in what two settings
lab-based
or
Field tests
how do submaximal, indirect aerobic fitness tests compare to direct measure tests
Less accurate but often more practical compared to direct measure tests - costs, time, equipment
Submaximal, indirect aerobic fitness tests allow extrapolation of VO2 from …..
HR measurement
What happens to HR with an increase in VO2
As oxygen consumption increases so does HR
What are 4 assumptions of indirect tests
- Steady-state HR is obtained for each work rate
- The max HR for a given age is uniform
- A linear relationship exists between HR, VO2, and PO
- Mechanical efficiency (VO2 at a given work rate) is the same for everyone
Although it is an assumption that max HR for a given age is uniform, in reality HR…
Can vary up to +/-20 bpm
Although it is an assumption that mechanical efficiency is the same for everyone, in reality…
A runner with poor running economy would exhibit higher VO2/HR at any given running speed than an economical runner
What are 8 types of indirect measurement of VO2max
- step test (mCAFT)
- Queen’s College step test
- YMCA cycle test
- Astrand cycle test
- Ebbeling treadmill test
- 1.5 mile run (Cooper’s)
- 20MSR
- Bruce treadmill test
What are some features of a cycle ergometer direct measurement test
- Often yields lower maximal values (local muscular fatigue)
- Some people may feel safe than on a treadmill (balance/fatigue)
What are some features of a treadmill direct measurement test
- Often yields higher maximal values
- more familiar mode for most people
- Many population-specific protocols and norms available
- Running protocols may be unsuitable for some medical conditions
- VO2max can be estimated indirectly from total time in maximal test protocols
oxygen consumption increase linearly with ___
workload
How does workload change on a treadmill
By manipulating speed and/or elevation
The ACSM Walking equation is most accurate for speeds of…
1.9-3.7 mph
What is the ACSM Walking equation
VO2 = 0.1(speed) + 1.8(speed)(fractional grade) + 3.5
The ACSM Running equation is most accurate for speeds…
Over 5mph or as low as 3mph if participant is running
On a cycle ergometer, workload changes by..
manipulating the resistance or the pedaling rate
What is the equation for power
Power = work/time
On a cycle ergometer what is the equation for work
f x d
F = Kilogram or kiloponds resistance
D = Revolutions of flywheel and distance it moves/rev
What is the speed of the fly wheel
6m/rev
Where must direct test measurement take place? using what?
Laboratory-based using open-circuit spirometry
In the gas collecting system you want appropriate breathing valves, tubing and stopcocks to allow for….
Inspiration of room air and expiration through the system
What does the gas collection system do
Collection and gas volume measurement
Gas to be analyzed by the gas collection system should be drawn directly from…
The mixing chamber
The gas collection system has ___ and ___ analyzers
CO2 and O2
