Alex_Simmons/RST wrote:danowat wrote:bahzob wrote:If you have a power meter one fairly accurate test is a max 3 minute effort. The power on for this will correlate quite closely to your MAP
It'll be in the ballpark, but I'd suggest something longer than 3-minutes for most people, unless you are specifically interested in ~3-min performance (e.g. goal event is shorter pursuits).
3-min power has the complicating factor of having a substantial anaerobic energy contribution (~25-35%) and so underlying aerobic fitness change may be more or less than the change in 3-min power (or steep climb speed) might indicate. Hence it's better to (also) have a longer effort where possible, as that will more reliably indicate aerobic fitness changes.
I would have thought some athletes would have an even more substantial anaerobic contribution than that? Is the 35% the ceiling even for a predominantly fast twitch athlete?