Maximal Oxygen Consumption
N14A20
2.3.5.VO2max_VOP.pptxVO2 Max
KIN 330
Learning objectives
To describe what VO2 max is and why it is measured.
Be familiar with values for VO2 max .
To describe how we verify achievement of VO2 max .
To explain the physiological factors that contribute to VO2 max .
To broadly understand how to increase VO2 max .
VO2 max
AKA: VO2 max, maximal oxygen consumption, maximal oxygen uptake, maximal aerobic power, aerobic capacity
The greatest amount of O2 that can be utilized per minute to produce ATP during large muscle activity
Occurs at the point in incremental exercise when VO2 plateaus even though workload increases
VO2 max (cont.)
Determined during incremental exercise test
VO2 is a linear function of workload until maximal levels are achieved (VO2 max)
Represents the maximal rate of aerobic re-synthesis of ATP
CV system’s ability to deliver O2
muscle’s ability to use O2
4
Criteria for VO2 max
Copyright© 2021 McGraw-Hill Education. All rights reserved. No reproduction without the prior written consent of McGraw-Hill Education
Gold Standard = plateau in VO2 even with increase in work rate
If a plateau in O2 consumption is not achieved…secondary criteria include:
Age-predicted max heart rate (+/- 10 beats/min)
Blood lactate concentration of 8 mM or higher
RER of 1.15 or higher
****Research reveals that these criterial do not always “prove” that VO2 max has been reached
5
ACSM Guidelines- VO2 max values
1 MET = 3.5 ml/kg/min
6
Why do we measure?
Cardiovascular fitness
One of the main determinants of aerobic performance
Indicator of cardiovascular health
Physiological Factors that Contribute to VO2 max
How to increase your VO2 max
Unfit:
moderate intensity for 30 minutes or more minutes at least 3 days/week
Fit:
vigorous intensity for 20 or more minutes at least 3 days/week
Summary
Important measure and marker of health and performance.
