Using corticomuscular and intermuscular coherence to assess cortical contribution to ankle plantar flexor activity during gait
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Using corticomuscular and intermuscular coherence to assess cortical contribution to ankle plantar flexor activity during gait. / Jensen, Peter; Frisk, Rasmus; Spedden, Meaghan Elizabeth; Geertsen, Svend Sparre; Bouyer, Laurent J; Halliday, David M; Nielsen, Jens Bo.
I: Journal of Motor Behavior, Bind 51, Nr. 6, 2019, s. 668-680.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Using corticomuscular and intermuscular coherence to assess cortical contribution to ankle plantar flexor activity during gait
AU - Jensen, Peter
AU - Frisk, Rasmus
AU - Spedden, Meaghan Elizabeth
AU - Geertsen, Svend Sparre
AU - Bouyer, Laurent J
AU - Halliday, David M
AU - Nielsen, Jens Bo
N1 - CURIS 2019 NEXS 028
PY - 2019
Y1 - 2019
N2 - The present study used coherence and directionality analyses to explore whether the motor cortex contributes to plantar flexor muscle activity during the stance phase and push-off phase during gait. Subjects walked on a treadmill, while EEG over the leg motorcortex area and EMG from the medial gastrocnemius and soleus muscles was recorded. Corticomuscular and intermuscular coherence were calculated from pair-wise recordings. Significant EEG-EMG and EMG-EMG coherence in the beta and gamma frequency bands was found throughout the stance phase with the largest coherence towards push-off. Analysis of directionality revealed that EEG activity preceded EMG activity throughout the stance phase until the time of push-off. These findings suggest that the motor cortex contributes to ankle plantar flexor muscle activity and forward propulsion during gait.
AB - The present study used coherence and directionality analyses to explore whether the motor cortex contributes to plantar flexor muscle activity during the stance phase and push-off phase during gait. Subjects walked on a treadmill, while EEG over the leg motorcortex area and EMG from the medial gastrocnemius and soleus muscles was recorded. Corticomuscular and intermuscular coherence were calculated from pair-wise recordings. Significant EEG-EMG and EMG-EMG coherence in the beta and gamma frequency bands was found throughout the stance phase with the largest coherence towards push-off. Analysis of directionality revealed that EEG activity preceded EMG activity throughout the stance phase until the time of push-off. These findings suggest that the motor cortex contributes to ankle plantar flexor muscle activity and forward propulsion during gait.
KW - Faculty of Science
KW - Coherence
KW - Gait
KW - EMG
KW - Cortex
KW - Spinal motor neurons
KW - Directionality
U2 - 10.1080/00222895.2018.1563762
DO - 10.1080/00222895.2018.1563762
M3 - Journal article
C2 - 30657030
VL - 51
SP - 668
EP - 680
JO - Journal of Motor Behavior
JF - Journal of Motor Behavior
SN - 0022-2895
IS - 6
ER -
ID: 212123310