Postural stability in human running with step-down perturbations: an experimental and numerical study.

ABSTRACT: Postural stability is one of the most crucial elements in bipedal locomotion. Bipeds are dynamically unstable and need to maintain their trunk upright against the rotations induced by the ground reaction forces (GRFs), especially when running. Gait studies report that the GRF vectors focus around a virtual point above the centre of mass (VP_A), while the trunk moves forward in pitch axis during the stance phase of human running. However, a recent simulation study suggests that a virtual point below the centre of mass (VP_B) might be present in human running, because a VP_A yields backward trunk rotation during the stance phase. In this work, we perform a gait analysis to investigate the existence and location of the VP in human running at 5 m s^-1, a

SUBMITTER: Drama O 

PROVIDER: S-EPMC7735328 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature