Effect of robotic-assisted gait rehabilitation on dynamic equilibrium control in the gait of children with cerebral palsy.

Journal: Gait & posture
Published Date:

Abstract

Due to the intensity and repetition of movement, roboticassisted gait training therapy could have a beneficial effect on the recovery and improvement of postural and locomotor functions of the patient. This study sought to highlight the effects of robotic-assisted gait rehabilitation in gait of children with Cerebral Palsy (CP). We analyzed the different strategies before and after this rehabilitation which was used in order to generate forward motion while maintaining balance. Data were collected by a motion analysis system (Vicon® - Oxford Metrics, Oxford, UK). The children were divided into two groups in such a way as to obtain a randomized controlled population: i) a group of fourteen children (Treated Group) underwent 20 sessions of roboticassisted gait training therapy using the driven gait orthosis Lokomat®Pediatric (Hocoma AG, Volketswil, Switzerland) compared to ii) a group of sixteen children without sessions of Lokomat®Pediatric (Control Group). Significant differences are observed for the TG between the preand post-test values of the locomotor parameters and of the kinetic data of the propulsive forces of the Center of Mass (COM) and of the Center of Pressure (COP) dynamic trajectory. This first study, although performed on a limited number of patients, shows the usefulness of this robotic gait rehabilitation mainly in the balance control in gait. Indeed after this rehabilitation, these children improve their gait that is especially characterized by a more appropriate time lag between the time instant of COM-COP trajectory divergence and the time instant when the forward propulsive forces became apparent.

Authors

  • L Wallard
    Laboratoire EDA EA4071, centre universitaire des Saints-Pères, 45, rue des Saints-Pères, 75270 Paris cedex 06, 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.
  • G Dietrich
    Laboratoire EDA EA4071, centre universitaire des Saints-Pères, 45, rue des Saints-Pères, 75270 Paris cedex 06, France.
  • Y Kerlirzin
    Laboratoire EDA EA4071, centre universitaire des Saints-Pères, 45, rue des Saints-Pères, 75270 Paris cedex 06, France.
  • J Bredin
    Laboratoire motricité humaine éducation sport santé EA6309, UFR-STAPS, université Nice-Sophia Antipolis, 261, route de Grenoble, 06205 Nice cedex 2, France; Centre de santé, institut Rossetti-PEP06, unité clinique d'analyse du mouvement, 400, boulevard de la Madeleine, 06000 Nice, France.