Effects of limited knee flexion movement in intra-limb gait coordination

Autor(es)

Celestino, Melissa L. ^[1] ; van Emmerik, Richard ^[2] ; Barela, Jose A. ^[3] ; Bacca, Odair ^[1] ; Barela, Ana M. F. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Cruzeiro Sul, Inst Phys Act & Sport Sci, Sao Paulo, SP - Brazil

^[2] Univ Massachusetts, Dept Kinesiol, Amherst, MA 01003 - USA

^[3] Sao Paulo State Univ, Inst Biosci, Rio Claro, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF BIOMECHANICS; v. 128, NOV 9 2021.
• Citações Web of Science: 0

Resumo

This study aimed to investigate intra-limb coordination in non-disabled individuals walking with and without a constrained knee and in individuals with stroke. We hypothesized that a constrained knee would modify the intra-limb coordination of non-disabled individuals and that non-disabled individuals walking with a constrained knee would present coordination patterns similar to those presented by individuals with stroke. Twelve individuals with chronic stroke (age: 54.1 +/- 9.9 years) and 12 age- and sex-matched individuals (age: 54.8 +/- 9.2 years) with no known gait impairment (non-disabled individuals) participated in this study. Non-disabled individuals walked with and without an orthosis on one of their knees, limiting flexion to 40 degrees, which was the average maximum knee flexion presented by the participants with stroke. Lower limb coordination was assessed on the basis of vector coding for the thigh-shank and shank-foot couplings during stance and swing periods of gait. Constrained knee flexion in non-disabled individuals mainly affected the thigh-shank coupling but not the shank-foot coupling of the constrained limb. There was reduced anti-phase coordination during the stance and swing periods and a marked increase in in-phase coordination during the swing period. Non-disabled individuals presented most changes toward the coordination pattern presented by individuals with stroke, except for the thigh-phase mode during the swing period, which was lower than that in individuals with stroke. Reduced knee flexion movement caused similar alterations in the intra-limb coordination pattern in non-disabled individuals compared to those observed in individuals with stroke. Therefore, diminished knee flexion movement, which is presented by individuals with stroke, can be considered a key disturbance that leads to impairment in lower extremity intra-limb coordination. (AU)

• Processo FAPESP: 16/08883-7 - Influência do uso de suporte parcial de peso corporal na adaptação locomotora de indivíduos com hemiparesia em decorrência de acidente vascular encefálico
• Beneficiário: Douglas Vicente Russo Junior
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 15/13100-9 - Efeitos do treinamento do andar com suporte parcial de peso corporal na coordenação intra- e inter-membros de indivíduos pós-acidente vascular encefálico
• Beneficiário: Melissa Leandro Celestino
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 18/04964-8 - Reduzindo déficits da marcha com modelagem de estimulação elétrica funcional
• Beneficiário: Ana Maria Forti Barela
• Modalidade de apoio: Auxílio à Pesquisa - Regular