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Between-leg asymmetry in automatic postural responses to stance perturbations in people with Parkinson's disease.
da Conceição, Núbia Ribeiro; de Souza, Caroline Ribeiro; Júlia, Ávila de Oliveira; de Lima-Pardini, Andrea Cristina; Silva-Batista, Carla; Teixeira, Luis Augusto; Coelho, Daniel Boari.
Afiliação
  • da Conceição NR; Human Motor Systems Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil.
  • de Souza CR; Human Motor Systems Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil.
  • Júlia ÁO; Human Motor Systems Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil.
  • de Lima-Pardini AC; Laboratory of Integrative Motor Behaviour, Centre for Neuroscience Studies, Queen's University, Ontario, Canada.
  • Silva-Batista C; Exercise Neuroscience Research Group, School of Arts, Sciences, and Humanities, University of São Paulo, São Paulo, Brazil.
  • Teixeira LA; Human Motor Systems Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil.
  • Coelho DB; Human Motor Systems Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil; Biomedical Engineering, Federal University of ABC, São Bernardo do Campo, São Paulo, Brazil. Electronic address: daniel.boari@ufabc.edu.br.
Gait Posture ; 97: 40-42, 2022 09.
Article em En | MEDLINE | ID: mdl-35872481
BACKGROUND: People with Parkinson's disease (PwPD) showed impairments of balance control which can be aggravated by the presence of higher interlateral postural asymmetry caused by a distinct dopaminergic loss in the substantia nigra between cerebral hemispheres. RESEARCH QUESTION: We evaluate asymmetries between the more and the less affected leg in PwPD in responses to unanticipated stance perturbations. METHODS: Sixteen 16 PwPD participated in the experiment that consisted of recovering a stable upright stance, keeping the feet in place, in response to a perturbation caused by a sudden release of a load equivalent to 7 % of the participant's body mass. Anterior displacement and velocity of the center of pressure (CoP), the latency of gastrocnemius medialis muscle (GM) activation onset, rate of GM activation, and normalized magnitude of muscular activation were analyzed. RESULTS: Analysis revealed significantly rate (p = 0.04) and magnitude (p = 0.02) higher activation of GM in the less affected limb. No significant effects of the leg were found for GM activation latency or CoP-related variables. SIGNIFICANCE: There is a higher contribution of the less affected leg in automatic postural responses in PwPD.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Doença de Parkinson / Postura Limite: Humans Idioma: En Revista: Gait Posture Assunto da revista: ORTOPEDIA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Doença de Parkinson / Postura Limite: Humans Idioma: En Revista: Gait Posture Assunto da revista: ORTOPEDIA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido