Detalhes bibliográficos
| Resumo: | Following anterior cruciate ligament reconstruction (ACLR), neuromuscular control alterations may persist, increasing the risk of reinjury. This study aimed to investigate electromyographic (EMG) muscle activation and the co-contraction index (CCI) of ACL-related agonist and antagonist muscles during side- hop tasks in ACLR individuals, offering novel insights into neuromuscular strategies during dynamic tasks. A cross-sectional study was conducted with 15 ACLR individuals and 15 participants without ACL injury (N-ACLR). Participants performed side-hop tasks while kinematic, kinetic, and EMG data were recorded during the preparatory and loading phases. Statistical analyses were performed at a 95 % confidence level. During ipsilateral side hops, ACLR individuals exhibited higher semitendinosus (ST) activity in the initial contact (IC) and risk phases and increased quadriceps:hamstrings (Q:H) CCI in the risk phase compared to N-ACLR (p < 0.05). In contralateral side hops, ACLR individuals demonstrated higher Q:H CCI in the preparatory phase and higher vastus lateralis:biceps femoris (VL:BF) CCI in the IC and risk phases (p < 0.05). ACLR individuals display altered neuromuscular strategies during side-hop tasks compared to N-ACLR, highlighting adaptations in muscle activation and co-contraction patterns. |
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| Autores principais: | Paredes, Ricardo |
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| Outros Autores: | Pereira, Soraia; Crasto, Carlos; Guedes, Diana; Montes, António Mesquita; Alves, Leonel; Arias-Buría, José L.; C. Guedes, Diana; Mesquita Montes, António |
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| Assunto: | Knee Anterior cruciate ligament Motor control Muscle activity Electromyography |
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| Ano: | 2025 |
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| País: | Portugal |
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| Tipo de documento: | artigo |
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| Tipo de acesso: | acesso embargado |
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| Instituição associada: | Instituto Politécnico do Porto |
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| Idioma: | inglês |
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| Origem: | Repositório Científico do Instituto Politécnico do Porto |
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