CSX Elliptical Owner’s Guide
46
Maximal oxygen uptake, or VO
2
max, is considered the best
single measurement of cardiovascular fitness. It represents the
peak rate of your body’s oxygen consumption capability, which
is important because this is one of the two biggest factors in
endurance performance.
Serious training results in an average improvement in VO
2
max
of 20%, and most of that happens in the first 12 weeks.
Additional significant improvement after this time is a result
of improved metabolic pathway efficiency and improved
biomechanics. The root causes of fatigue and cardiovascular
performance limitation are not as well-known as commonly
believed.
VO
2
Max
Appendix B
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