Association between walking and strength of lower limbs after chronic stroke

Acta Fisiátrica

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Title Association between walking and strength of lower limbs after chronic stroke
Associação entre velocidade de marcha e força de membros inferiores após acidente vascular encefálico crônico
 
Creator Silva, Brenno Belchior Cordeiro
Faria-Fortini, Iza de
Costa, Pollyana Helena Vieira
Torriani-Pasin, Camila
Polese, Janaine Cunha
 
Subject Stroke
Muscle Strength
Gait
Walking Speed
Acidente Vascular Cerebral
Força Muscular
Marcha
Velocidade de Caminhada
 
Description Certain muscle groups strength directly influence walking speed (WS), and the lower strength of the paretic side is significantly associated with lower WS of individuals after stroke. Studies that have investigated the association between the average of lower limb strength and the WS in individuals are scarce. Therefore, it is important to determine whether the strength could explain walking performance due to some muscle weakness could be compensated by the strength of others, mainly because all muscles act in group, not isolated. Objective: To investigate the association between WS and lower limbs muscle strength, and to identify whether an individual muscle group or the average strength of lower limb would best predict WS and walking speed reserve (WSR) in individuals with stroke. Methods: Sixty-four community-dwelling individuals with chronic stroke have their maximum isometric strength (hip flexors/extensors/abductors, knee flexors/extensors, and ankle dorsiflexors/plantarflexors) and self-selected and fast WS (10m walk test) measured. WSR was considered as the difference between the fast and self-selected speed. Results: Average strength of the paretic limb accounted for 19% and 20% of the variance in self-selected and fast WS, respectively. Plantarflexor strength of the paretic, knee and hip flexors of the non-paretic side explained alone 27% of the WSR scores and plantarflexor strength of the paretic side alone explained 15%.Conclusion: Average muscle strength of the paretic side contributed to self-selected and fast WS. Plantarflexor strength of the paretic side, knee and hip flexors of the non-paretic side contributed with the WSR of chronic stroke individuals.
Estudos que investigam a associação entre a força média de membro inferior e a velocidade de marcha em indivíduos pós AVE são escassos. Logo, é importante determinar se a força muscular média pode explicar o desempenho na marcha, visto que os músculos agem em grupo. Objetivo: Investigar a associação entre velocidade de marcha e força muscular de membros inferiores, e identificar se um grupo muscular individual ou a força média de membros inferiores poderia predizer a velocidade de marcha e a velocidade de reserva (VR) em indivíduos pós AVE crônico. Métodos: 64 indivíduos deambuladores comunitários pós AVE crônico passaram por avaliação de força isométrica máxima (flexor/extensor/abdutor de quadril, flexor/extensor de joelho e flexor plantar/dorsoflexor de tornozelo) e velocidade de marcha habitual e máxima (Teste de Caminhada de 10 metros). A VR foi considerada a diferença entre velocidade de marcha máxima e habitual. Resultados: A força média do lado parético foi responsável por 19% e 20% da variância na velocidade de marcha habitual e máxima respectivamente. A força de flexor plantar do lado parético e flexor de quadril e joelho do lado não parético explicaram 27% da VR e força de flexor plantar do lado parético explicou 15%.  Conclusão: A força média do lado parético contribuiu para a velocidade de marcha habitual e máxima. a força de flexor plantar do lado parético, flexor de quadril e joelho do lado não parético contribuíram para a VR de indivíduos pós AVE crônico.
 
Publisher Faculdade de Medicina, Universidade de São Paulo
 
Date 2020-06-30
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://www.revistas.usp.br/actafisiatrica/article/view/171118
10.11606/issn.2317-0190.v27i3a171118
 
Source Acta Fisiátrica; v. 27 n. 3 (2020); 131-138
2317-0190
0104-7795
 
Language eng
 
Relation https://www.revistas.usp.br/actafisiatrica/article/view/171118/167880
 
Rights Copyright (c) 2020 Acta Fisiátrica
https://creativecommons.org/licenses/by-nc-sa/4.0
 

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