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Arch Phys Med Rehabil ; 105(7): 1322-1329, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38458374

RESUMO

OBJECTIVE: To investigate the immediate effects of plastic ankle-foot orthosis (AFO) on locomotor performance in patients with stroke and determine how such effects might undergo alteration when distinct plantarflexor (PF) module subtypes are considered. DESIGN: Cross-sectional study. SETTING: Two university hospitals. PARTICIPANTS: Fifty-two patients with stroke and 21 of those without stroke (N=73). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Motor modules were identified through non-negative matrix factorization, and participants were classified into 3 groups: independent-normal-timing, independent-altered-timing, and merged PF modules. To assess the effects of the AFO, gait measurements reflecting locomotor performance were obtained with and without the presence of the plastic AFO for each group. RESULTS: The independent-altered-timing group had increased paretic propulsion, greater non-paretic step length, and faster walking speed after the administration of the plastic AFO; however, these significant changes were not observed in the independent-normal-timing and merged PF module groups. Notably, patients in the independent-normal-timing and merged PF module groups exhibited longer paretic stance times. CONCLUSION: This study suggests that the immediate effects of plastic AFO depend on the PF module subtype. These findings can potentially guide clinical decision-making regarding AFO selection for stroke rehabilitation in patients with diverse gait control characteristics.


Assuntos
Órtoses do Pé , Transtornos Neurológicos da Marcha , Reabilitação do Acidente Vascular Cerebral , Humanos , Estudos Transversais , Masculino , Feminino , Pessoa de Meia-Idade , Reabilitação do Acidente Vascular Cerebral/métodos , Idoso , Transtornos Neurológicos da Marcha/reabilitação , Transtornos Neurológicos da Marcha/fisiopatologia , Transtornos Neurológicos da Marcha/etiologia , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/fisiopatologia , Marcha/fisiologia , Velocidade de Caminhada/fisiologia , Desenho de Equipamento
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