title: Balance control in gait children with cerebral palsy.
abstract: This study sought to highlight the balance control process during gait in children with cerebral palsy (CP) by analyzing the different strategies used in order to generate forward motion while maintaining balance. Data were collected using a motion analysis system in order to provide a clinical gait analysis for 16 children with CP and 16 children with typical development. Significant differences between the two groups are observed in terms of kinetic data of the propulsive forces of the center of mass (COM) and of the center of pressure (COP) dynamic trajectory and for locomotor parameters. The imbalance generated by divergent trajectories of COM and COP produce the propulsive forces responsible for human gait initiation. Moreover, we observe in children with CP an "en bloc" postural strategy resulting in increasing divergence between trajectories of COM-COP. This particular strategy of the children with CP is characterized by a greater time duration between the moment of COM-COP trajectory divergence and the moment where the forward propulsive forces became apparent.
authors.affiliation: Laboratoire GEPECS, équipe Techniques et Enjeux du Corps, Université Paris Descartes, UFR-STAPS, 1, rue Lacretelle, 75015 Paris, France; Laboratoire Motricité Humaine Éducation Sport Santé EA6309, UFR-STAPS, Université Nice-Sophia Antipolis, 261, route de Grenoble, 06205 Nice Cedex 2, France. Electronic address: wallard_laura@hotmail.fr.
authors.forename: L
authors.initials: L
authors.lastname: Wallard
authors.affiliation: Laboratoire GEPECS, équipe Techniques et Enjeux du Corps, Université Paris Descartes, UFR-STAPS, 1, rue Lacretelle, 75015 Paris, France.
authors.forename: G
authors.initials: G
authors.lastname: Dietrich
authors.affiliation: Laboratoire GEPECS, équipe Techniques et Enjeux du Corps, Université Paris Descartes, UFR-STAPS, 1, rue Lacretelle, 75015 Paris, France.
authors.forename: Y
authors.initials: Y
authors.lastname: Kerlirzin
authors.affiliation: Centre de Santé Institut Rossetti-PEP06, Unité Clinique d'Analyse du Mouvement, 400, bld de la Madeleine, 06000 Nice, France; Laboratoire Motricité Humaine Éducation Sport Santé EA6309, UFR-STAPS, Université Nice-Sophia Antipolis, 261, route de Grenoble, 06205 Nice Cedex 2, France.
authors.forename: J
authors.initials: J
authors.lastname: Bredin
mesh_terms: D001696:Biomechanical Phenomena; D002547:Cerebral Palsy / Q000150:complications* / Q000503:physiopathology* / Q000534:rehabilitation; D002648:Child; D005260:Female; D005684:Gait / Q000502:physiology*; D006801:Humans; D007697:Kinesics; D008124:Locomotion / Q000502:physiology; D008297:Male; D009068:Movement / Q000502:physiology; D009069:Movement Disorders / Q000209:etiology / Q000503:physiopathology* / Q000534:rehabilitation; D004856:Postural Balance / Q000502:physiology*; D011312:Pressure; D012678:Sensation Disorders / Q000209:etiology / Q000503:physiopathology* / Q000534:rehabilitation*
keywords: Balance control; Cerebral palsy; Child gait; Posturokinetic capacity