ROM Resist & New Zealand

We see that swing phase knee flexion, which is normally supple and inertial, is of strikingly low change in both stance and swing. Cocontraction (emg) is maintaining a new structure (harmonic #6). It is a long vertical mechanically stiff rod (ignoring the structural contours). Gait has become a wheel with the axle on the ground. It uses only a very short arc centered on that spoke being vertical. A big wheel using a short arc so that the rise is minimal and the fall past midstance is minimal. Another solution to this:

Go from hither to thither with least energy. Straight line – a wheel – but wheels need roads or flat surfaces to be worthwhile. Man in the wild? Not a best choice. Low amplitude travel of the center of mass en route – least work against gravity. Inman's 6 determinants got that done. But his subjects were not self damping (nor elasticized to be so). They had amputations but not CP. OK. Use a BIG wheel as plan B. You see this everywhere in articles – something or other is amiss and it [the amiss part] CAUSES short stride length .