Ch 6 Cardiorespiratory Assessment Flashcards
VO2 Max
maximal oxygen uptake
Maximal ability of heart, lungs and blood to deliver O2 to working muscles during dynamic exercise
VO2 peak
Highest O2 consumption during exercise test
may be higher, lower or equal to VO2 max
Absolute VO2
Measured in L/min or mL/min
No reference to body mass
Energy cost of non-weigh-bearing exercises
Relative VO2
Expressed relative to body mass (mL/kg/min)
Energy cost of weight-bearing exercises
Allows for comparison across body sizes
Rest (3.5) + exercise O2 consumption
Gross VO2
O2 consumption of exercise only
(VO2 - 3.5)
Net VO2
Primary VO2Max attainment criterion
Plateau in O2 consumption
VO2 increase <150 mL/min
Secondary VO2Max attainment criteria
HR fails to raise with increasing workload
RPE > 17 on Borg 6-20 scale
Blood Lactate > 8mmol/L
RER > 1.15 (CO2 produced/O2 consumed)
Reasons to terminate and exercise test
End of protocol
Equipment Malfunction
Client asks to stop
Signs or symptoms indicating need to stop
Reached predetermined end point
How is the highest VO2 max value attained
running uphill (treadmill)
Common exercise test protocols
Treadmill
Standard Bruce
Modified Bruce
Balke
Naughton
Common exercise test protocols
Stationary bike
Astrand
Fox
Macardle et al
Where are there discrepancies in the bench stepping maximal exercise test
Step Height
Stepping cadence
Body mass
leg lenght
When do you find VO2 max during a bench stepping test
Last stepping stage
What do you need to monitor during submax testing
Heart Rate
Blood pressure
Rate of perceived exertion
