1. Effects of sensory manipulations on the dynamical structure of center-of-pressure trajectories of children with cerebral palsy during sitting
- Author
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Silvia Leticia Pavão, Carolina Souza Neves da Costa, Nelci Adriana Cicuto Ferreira Rocha, Livia Pessarelli Visicato, and Ana Carolina de Campos
- Subjects
Male ,medicine.medical_specialty ,Adolescent ,Rotation ,genetic structures ,Biophysics ,Experimental and Cognitive Psychology ,Sensory system ,Static sitting ,Sitting ,Cerebral palsy ,Postural control ,Disability Evaluation ,03 medical and health sciences ,0302 clinical medicine ,Physical medicine and rehabilitation ,Center of pressure (terrestrial locomotion) ,Pressure ,medicine ,Humans ,Orthopedics and Sports Medicine ,Child ,Postural Balance ,Eyes open ,Sitting Position ,Cerebral Palsy ,030229 sport sciences ,General Medicine ,medicine.disease ,Child, Preschool ,Visual Perception ,Female ,Psychology ,Photic Stimulation ,030217 neurology & neurosurgery - Abstract
Aim: To investigate the effects of manipulating visual information and the compliance of the support surface on the area of sway and dynamical trajectories of center-of-pressure (CoP) in children with CP and children with typical development during static sitting. Methods: 32 typical children, 14 children with mild CP and 12 with moderate-to-severe CP were tested for CoP sway during static sitting under four sensory conditions: (1) eyes open on a rigid surface; (2) eyes closed on a rigid surface; (3) eyes open on foam; (4) eyes closed on foam. Results: Children with moderate-to-severe CP showed greater regularity and local stability of dynamical CoP trajectories and lower complexity in their motor patterns than typical children and children with mild CP. Moreover, removing vision and sitting on a compliant surface reduced the regularity of CoP trajectories. Conclusion: Children with CP were able to adjust the structure and complexity of their postural control responses to sensory challenges, although the structure of their postural responses was poorer than in typical children.
- Published
- 2019