VO2 max

Question 1

what is VO2 max

Answer 1

measure of individuals capacity for aerobic resynthesis
- max capacity for making ATP through the aerobic pathway

Question 2

what does high VO2 max require

Answer 2

integrated and high level resposne of diverse physiological systems (pulmonary, CV, muscle systems) to uptake transport, and utilise oxygen

Question 3

how can we measure VO2 max

Answer 3

ramp incremental - consistent PO increases
step incremental - PO increases in steps and is maintained for an amount of time
constant intensity - sharp increase in PO to a constant intensity

Question 4

what are the results of different tests (PO and VO2max)

Answer 4

VO2 is consistent between all tests
PO at that intensity differs
- highest in ramp, lowest in constant load
can’t sustain constant intensity in severe domain for very long

Question 5

how can you control for differences in body comp

Answer 5

normalising by lean body mass eliminates sex based differences in VO2 max (when matched for training level)

Question 6

do you need a high VO2 max to be successful

Answer 6

necessary but not the only factor determining aerobic capacity

Question 7

how does VO2 max decline with age

Answer 7

8% decline per decade
both males and females
regardless of training

Question 8

what is the relationship with ventilation and VO2 max tests

Answer 8

ventilation shows a curvilinear relationship during the VO2 max test

Question 9

what are the benefits of a ramp incremental test

Answer 9

• can determine exercise capacity (VO2 max)
• can identify cardiorespiratory response thresholds
• can use lactate or ventilation show the same thresholds