title: Kinematic mapping reveals different spatial distributions of center of pressure high-speed regions under somatosensory loss.
abstract: The spatial distribution of center-of-pressure speed during postural tasks and its changes due to somatosensory constraint (temporary ischemic hypoxia on ankle/feet) were investigated in young, healthy subjects (n = 13). A single high-speed region in the central region of the statokinesigram was observed during postural tasks with full sensory information. A significant increase in the quantity of high-speed regions was observed during ischemia and somatosensory constraint, whereas a significant increase in the quantity of high-speed regions localized more distant to the center of center-of-pressure area occurred under somatosensory constraints, suggesting a redirection of center-of-pressure trajectory to adjust the position of the center of mass with respect to the egocentric reference of balance.
authors.affiliation: a Laboratory of Computational Simulation and Modeling in Rehabilitation, Centro Universitário Augusto Motta , Rio de Janeiro , Brazil.
authors.forename: Fellipe M
authors.initials: FM
authors.lastname: Portela
authors.forename: Arthur S
authors.initials: AS
authors.lastname: Ferreira
mesh_terms: D000328:Adult; D000377:Agnosia / Q000503:physiopathology*; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D008297:Male; D009048:Motor Skills / Q000502:physiology; D053580:Muscle Strength / Q000502:physiology; D004856:Postural Balance / Q000502:physiology; D011434:Proprioception / Q000502:physiology
keywords: center-of-pressure; egocentric constraints; kinematics; postural sway; rehabilitation