.... An anterior shift of 0.5 deg (V0) to 1.5 deg (C10) from 0% to 100% of the extended stride was observed. The angular momentum in the sagittal plane L wb differed between the conditions before the stance phase of the leading leg ( Fig. 6 A). In the visible conditions, L wb increased with the larger...

...Hugh Herr; Marko Popovic SUMMARY Angular momentum is a conserved physical quantity for isolated systems where no external moments act about a body's center of mass (CM). However, in the case of legged locomotion, where the body interacts with the environment(ground reaction forces...

... the spin, the morphology of the dolphin precludes this mechanism for the spinning maneuver. A mathematical model was developed that demonstrates that angular momentum to induce the spin was generated underwater, prior to the leap. Subsurface corkscrewing motion represents a balance between drive torques...