Adjustments of global and hindlimb local properties during the terrestrial locomotion of the common quail (Coturnix coturnix)

摘要: Increasing insight into neuro-mechanical control strategies during perturbed locomotion is gained. In contrast, more general analyses on simple model (template) related parameters avian terrestrial are still rare. Quails kinematic data obtained using X-ray videography combined with ground reaction force measurements were used as a basis to investigate how "global" template and "local" leg joint in this small predominantly bird change speed gait. Globally, quail approximates spring-like behavior all investigated gaits. However, forces vertically oriented which may help balance the trunk. At level, practically spring like work was found occur ITJ (intertarsal joint). From walking grounded running local stiffness of decreases similarly reduction observed global stiffness. Thus, gaits without aerial phases quails modulate regulate stiffness, therefore gait changes, significant degree. higher speeds compression increased (the latter values not significantly different those walking). This enables animals shorten contact time generate (running). we did observe from running. We hypothesize that extended at touch-down, controlled by angles knee ITJ, has an important influence adjustment process