Wait a minute. I think your statement is not correct.. It is true that the energy systems do not work independantly of each other and all three systems make a contribution but one or at most two will be responsible for most of the energy production at any given time. So no, the aerobic energy system is definately not always fully contributing to the effort. Lets take a 2 minute interval for example. If the effort is really intense the ATP-PCR system is almost totally (maybe near 100%) predominant and aerobic system is not doing much and is certainly nowhere near 100% or probbaly not even at 10%.. As the effort goes past 15 seconds then the anaerobic system does most of the work. As the effort goes past 45 seconds then the aerobic system starts to do a lot more of the energy production.frenchyge said:Keep in mind that anaerobic energy supplements aerobic energy as needed, so aerobic energy is always fully contributing to the effort. It's not a switchover situation between the two.
The graphs here show what I am talking about.
http://freewebs.com/velodynamics2/LTtest.pdf