Dynamics of corticospinal motor control during overground and treadmill walking in humans

Journal of Neurophysiology
Luisa RoederGraham K Kerr

Abstract

Increasing evidence suggests cortical involvement in the control of human gait. However, the nature of corticospinal interactions remains poorly understood. We performed time-frequency analysis of electrophysiological activity acquired during treadmill and overground walking in 22 healthy, young adults. Participants walked at their preferred speed (4.2, SD 0.4 km/h), which was matched across both gait conditions. Event-related power, corticomuscular coherence (CMC), and intertrial coherence (ITC) were assessed for EEG from bilateral sensorimotor cortices and EMG from the bilateral tibialis anterior (TA) muscles. Cortical power, CMC, and ITC at theta, alpha, beta, and gamma frequencies (4-45 Hz) increased during the double support phase of the gait cycle for both overground and treadmill walking. High beta (21-30 Hz) CMC and ITC of EMG was significantly increased during overground compared with treadmill walking, as well as EEG power in theta band (4-7 Hz). The phase spectra revealed positive time lags at alpha, beta, and gamma frequencies, indicating that the EEG response preceded the EMG response. The parallel increases in power, CMC, and ITC during double support suggest evoked responses at spinal and cortical populations rat...Continue Reading

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Citations

Feb 14, 2020·Brain Sciences·Arnaud DelvalKathy Dujardin
Mar 12, 2020·Journal of Clinical Medicine·Federico GennaroEling D de Bruin
Dec 25, 2019·Journal of Neuroengineering and Rehabilitation·Arturo Forner-CorderoHermano Igo Krebs
Sep 29, 2020·Scientific Reports·Paulo Cezar Rocha Dos SantosTibor Hortobágyi
Feb 23, 2020·Scientific Reports·Luisa RoederGraham K Kerr
Jul 8, 2020·International Journal of Environmental Research and Public Health·Luca RussoJohnny Padulo
Sep 3, 2019·Frontiers in Human Neuroscience·Sok Joo TanJonathan M Peake
Aug 15, 2020·Frontiers in Physiology·Jennifer N KerkmanNadia Dominici
Sep 18, 2020·Journal of Neurophysiology·Hikaru YokoyamaKei Masani
Oct 17, 2020·Frontiers in Veterinary Science·Melissa J LewisUNKNOWN Canine Spinal Cord Injury Consortium (CANSORT-SCI)
Jan 9, 2021·Frontiers in Human Neuroscience·Liyu CaoBarbara F Haendel
Mar 20, 2021·The European Journal of Neuroscience·Alexandre DelauxAngelo Arleo
Jun 11, 2021·Journal of Physical Activity & Health·Jingjing XuePing Hong

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Software Mentioned

MATLAB
TMSi Mobita
SPSS
EEGLAB

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