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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Torque steadiness and muscle activation are bilaterally impaired during shoulder abduction and flexion in chronic post-stroke subjects

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Autor(es):
Santos, Gabriela Lopes ; Fernanda Garcia-Salazar, Luisa ; Souza, Matheus Braganca ; Oliveira, Ana Beatriz ; Camargo, Paula Rezende ; Russo, Thiago Luiz
Número total de Autores: 6
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY; v. 30, p. 151-160, OCT 2016.
Citações Web of Science: 4
Resumo

Objective: To characterize sensorimotor control and muscle activation in the shoulder of chronic hemiparetic during abduction and flexion in maximal and submaximal isometric contractions. Furthermore, to correlate submaximal sensorimotor control with motor impairment and degree of shoulder subluxation. Methods: Thirteen chronic hemiparetic post-stroke age-gender matched with healthy were included. Isometric torques were assessed using a dynamometer. Electromyographic activity of the anterior and middle deltoid, upper trapezius, pectoralis major and serratus anterior muscles were collected. Variables were calculated for torque: peak, time to target, standard deviation (SD), coefficient of variation (CV), and standard error (RMSE); for muscle activity: maximum and minimum values, range and coefficient of activation. Motor impairment was determined by Fugl-Meyer and shoulder subluxation was measured with a caliper. Results: Paretic and non-paretic limbs reduced peak and muscle activation during maximal isometric contraction. Paretic limb generated lower force when compared with non-paretic and control. Paretic and non-paretic presented higher values of SD, CV, RMSE, and CV for prime mover muscles and minimum values for all muscles during steadiness. No correlation was found between sensorimotor control, motor impairment and shoulder subluxation. Conclusion: Chronic hemiparetic presented bilateral deficits in sensorimotor and muscle control during maximal and submaximal shoulder abduction and flexion. (C) 2016 Elsevier Ltd. All rights reserved. (AU)

Processo FAPESP: 14/25845-6 - Efeitos da bandagem elástica na propriocepção do ombro e no desempenho sensório-motor durante o alcance em indivíduos hemiparéticos crônicos
Beneficiário:Gabriela Lopes dos Santos
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 13/21621-3 - Efeito do treino tarefa específica sobre adaptação muscular em gerbilos pós-acidente vascular encefálico isquêmico
Beneficiário:Thiago Luiz de Russo
Linha de fomento: Auxílio à Pesquisa - Regular