On the surface it does make perfect sense that efficiency requires minimizing unnecessary internal work. If that were true, everybody could return to their normally scheduled programming. That is the Number One sticking point, which keeps coaches and athletes from looking further into my program/concept. Take a look at any biomechanics publication, in some cases it is explicitly stated that the pelvis is assumed to be still, in others assumed; either way the legs are perceived to do all the work. With the exception of a publication in ’95 or so, in which they tracked the path of the acetabulum (only one volunteer for the intracortical pin). This assumption has become embedded in the belief system primarily because the relevant questions are not asked, and if they are elite athletes are not available even for a kinematic study, and you don’t know what you are going to get with an amateur (regardless of category).
The legs need the assist from the movement pattern to position and reposition the foot over the full pedal stroke. There is greater stability imparted to manage pedal reaction forces. There is a greater advantage from “moments” exerted on the crankarm, at each quadrant of the pedal stroke. The current assumptions discount the impact of “priming” the movement sequence with quick stretch responses as well as passive energy return mechanisms (all in the right time frame for the cycling performance).
The video evidence, without exception each and every elite athlete engages in the movement patterns, not for show but for the sake of performance. It’s fully evident.
For some reason cycling is the only sport in which the athleticism of the human body and expert performance on the bike is frowned upon for the sake of “efficiency”, aero-this and the other. Fortunately, we have elite athletes which sit patiently through the instruction, ignore most of it, and do things their way in the end, expertly. It comes down to expanding the definition of efficiency, breaking from the purely physiological model and including effectiveness in the mix.