Um, yeah, what dmotoguy said, that doesn't make any sense. If you were on a stationary bike and had the same resistance, gear, cadence, speed, distance, etc. were all the same the power has to be the same, regardless of your position. The only thing the position can affect is your aerodynamics or your ability to produce power, e.g. a lower position may make it more difficult to get sufficient oxygen, or have a hip angle that is more limiting...