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Interhemispheric asymmetries in postural control in post-stroke: quiet stance and recovering from perturbation

Grant number: 11/16667-9
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): March 01, 2012
Effective date (End): February 28, 2014
Field of knowledge:Humanities - Psychology - Experimental Psychology
Principal Investigator:Luis Augusto Teixeira
Grantee:Corina Aparecida Fernandes
Host Institution: Escola de Educação Física e Esporte (EEFE). Universidade de São Paulo (USP). São Paulo , SP, Brazil


Body balance is one of the impaired motor functions following stroke. The side of occurrence of the neural lesion has been shown to affect differentially postural control, revealing functional asymmetries between the right and left hemispheres in body balance. This study aims at comparing reactive postural responses in post stroke individuals with lesions to the right versus left hemispheres, considering the lesioned neural area. In the proposed experiment individuals with moderate stroke at the cerebellum or occipital cortex in one of the cerebral hemispheres and a group of healthy individuals paired by age will have their stance perturbed by manual load release. Postural recovery analysis will be made through posturography based on center of pressure and electromyography of anterior distal muscles of the paretic and healthy legs.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
FERNANDES, CORINA APARECIDA; COELHO, DANIEL BOARI; MARTINELLI, ALESSANDRA REZENDE; TEIXEIRA, LUIS AUGUSTO. Right cerebral hemisphere specialization for quiet and perturbed body balance control: Evidence from unilateral stroke. HUMAN MOVEMENT SCIENCE, v. 57, p. 374-387, . (11/16667-9, 12/05769-8, 11/18173-3)
COELHO, DANIEL BOARI; FERNANDES, CORINA APARECIDA; MARTINELLI, ALESSANDRA REZENDE; TEIXEIRA, LUIS AUGUSTO. Right in Comparison to Left Cerebral Hemisphere Damage by Stroke Induces Poorer Muscular Responses to Stance Perturbation Regardless of Visual Information. JOURNAL OF STROKE & CEREBROVASCULAR DISEASES, v. 28, n. 4, p. 954-962, . (12/05769-8, 11/18173-3, 11/16667-9)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
FERNANDES, Corina Aparecida. Influence of the injured brain hemisphere and of sensory deficits on body balance post-stroke. 2014. Master's Dissertation - Universidade de São Paulo (USP). Escola de Educação Física e Esportes (EEFE/BT) São Paulo.

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