Corticomuscular coupling alterations in subacute stroke patients: insights from fNIRS and sEMG

This study reveals differences in the mapping relationship between cortical activation and sEMG signals across time-domain and frequency-domain indices in stroke patients compared to healthy subjects, providing new theoretical insights into the interaction between brain activity and motor execution. These results underscore the disrupted corticomuscular coupling in stroke patients and suggest its value in characterizing the central-peripheral interaction during motor execution, which may inform future rehabilitation assessment strategies.