Visuomotor control of leaping over a raised obstacle is sensitive to small baseline displacements.

ABSTRACT: The limb kinematics used for stepping or leaping over an obstacle are determined primarily by visual sensing of obstacle position and geometry. In this study, we demonstrate that changes are induced in limb kinematics even when obstacle geometry is manipulated in a way that does not introduce a mechanical requirement for a change of limb trajectory nor increase risk of collision. Human participants performed a running leap over a single raised obstacle bar. Kinematic changes were measured when an identical second bar was introduced at a ground level underneath the obstacle and displaced by a functionally insignificant distance along the axis of travel. The presence or absence of a baseline directly beneath the highest extremity had no significant effect on limb kinematics. However, displac

SUBMITTER: Daniels KAJ 

PROVIDER: S-EPMC8074954 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature