170049 20260316092630.0 doi 10.1152/jn.00336.2025 sideral 148517 ART-2025-148517 eng Graef, Cosima Propagation of beta bursts from the motor cortex to the motor units of multiple upper-limb muscles 2025 We provide the first evidence of cortical beta bursting in motor unit (MU) activity of forearm extensors across force levels. MU beta bursts are time-locked to cortical beta bursts, supporting direct corticospinal transmission in the upper limb. Our findings indicate that burst timing is robust to changes in contraction levels and demonstrate a robust cortical-peripheral beta relationship during isometric contractions. They also reinforce the utility of HDsEMG for investigating burst dynamics and refining neurophysiological biomarkers. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/EC/HORIZON EUROPE/101151398/EU/Implementation and validation of a closed-loop neural interface to entrain brain rhythms and reduce motor symptoms in Parkinson’s Disease info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pascual Valdunciel, Alejandro Universidad de Zaragoza Farina, Dario Vaidyanathan, Ravi Tai, Yen F Haar, Shlomi 5008 800 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Teoría Señal y Comunicac. 135, 1 (2025), 97-109 J. neurophysiol. JOURNAL OF NEUROPHYSIOLOGY 0022-3077 2984802 http://zaguan.unizar.es/record/170049/files/texto_completo.pdf Versión publicada 2731738 http://zaguan.unizar.es/record/170049/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:170049 articulos driver 2026-03-16-08:17:36 ARTICLE