Why is power-based training so important all of a sudden?
Its no more so than it was previously, in fact, exercise physiologists have used calibrated ergometers for years to impose precise loads on study subjects. Rather, the introduction of affordable on-bike power measurement systems (power/speed measuring device, handlebar-mounted computer, receiver/wiring and computer mounting bracket, download interface, software) have made it possible to use power in everyday training as well as racing, then analyze the resulting workout data. This, and their widening use among both amateur and professional riders has generated considerable buzz.
