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Increased central common drive to ankle plantar flexor and dorsiflexor muscles during visually guided gait

When we walk in a challenging environment, we use visual information to modify our gait and place our feet carefully on the ground. Here, we explored how central common drive to ankle muscles changes in relation to visually guided foot placement. Sixteen healthy adults aged 23 ± 5 years participated...

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Autores principales: Jensen, Peter, Jensen, Nicole Jacqueline, Terkildsen, Cecilie Ulbæk, Choi, Julia T., Nielsen, Jens Bo, Geertsen, Svend Sparre
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5800295/
https://www.ncbi.nlm.nih.gov/pubmed/29405634
http://dx.doi.org/10.14814/phy2.13598
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author Jensen, Peter
Jensen, Nicole Jacqueline
Terkildsen, Cecilie Ulbæk
Choi, Julia T.
Nielsen, Jens Bo
Geertsen, Svend Sparre
author_facet Jensen, Peter
Jensen, Nicole Jacqueline
Terkildsen, Cecilie Ulbæk
Choi, Julia T.
Nielsen, Jens Bo
Geertsen, Svend Sparre
author_sort Jensen, Peter
collection PubMed
description When we walk in a challenging environment, we use visual information to modify our gait and place our feet carefully on the ground. Here, we explored how central common drive to ankle muscles changes in relation to visually guided foot placement. Sixteen healthy adults aged 23 ± 5 years participated in the study. Electromyography (EMG) from the Soleus (Sol), medial Gastrocnemius (MG), and the distal and proximal ends of the Tibialis anterior (TA) muscles and electroencephalography (EEG) from Cz were recorded while subjects walked on a motorized treadmill. A visually guided walking task, where subjects received visual feedback of their foot placement on a screen in real‐time and were required to place their feet within narrow preset target areas, was compared to normal walking. There was a significant increase in the central common drive estimated by TA‐TA and Sol‐MG EMG‐EMG coherence in beta and gamma frequencies during the visually guided walking compared to normal walking. EEG‐TA EMG coherence also increased, but the group average did not reach statistical significance. The results indicate that the corticospinal tract is involved in modifying gait when visually guided placement of the foot is required. These findings are important for our basic understanding of the central control of human bipedal gait and for the design of rehabilitation interventions for gait function following central motor lesions.
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spelling pubmed-58002952018-03-15 Increased central common drive to ankle plantar flexor and dorsiflexor muscles during visually guided gait Jensen, Peter Jensen, Nicole Jacqueline Terkildsen, Cecilie Ulbæk Choi, Julia T. Nielsen, Jens Bo Geertsen, Svend Sparre Physiol Rep Original Research When we walk in a challenging environment, we use visual information to modify our gait and place our feet carefully on the ground. Here, we explored how central common drive to ankle muscles changes in relation to visually guided foot placement. Sixteen healthy adults aged 23 ± 5 years participated in the study. Electromyography (EMG) from the Soleus (Sol), medial Gastrocnemius (MG), and the distal and proximal ends of the Tibialis anterior (TA) muscles and electroencephalography (EEG) from Cz were recorded while subjects walked on a motorized treadmill. A visually guided walking task, where subjects received visual feedback of their foot placement on a screen in real‐time and were required to place their feet within narrow preset target areas, was compared to normal walking. There was a significant increase in the central common drive estimated by TA‐TA and Sol‐MG EMG‐EMG coherence in beta and gamma frequencies during the visually guided walking compared to normal walking. EEG‐TA EMG coherence also increased, but the group average did not reach statistical significance. The results indicate that the corticospinal tract is involved in modifying gait when visually guided placement of the foot is required. These findings are important for our basic understanding of the central control of human bipedal gait and for the design of rehabilitation interventions for gait function following central motor lesions. John Wiley and Sons Inc. 2018-02-06 /pmc/articles/PMC5800295/ /pubmed/29405634 http://dx.doi.org/10.14814/phy2.13598 Text en © 2018 The Authors. Physiological Reports published by Wiley Periodicals, Inc. on behalf of The Physiological Society and the American Physiological Society This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Jensen, Peter
Jensen, Nicole Jacqueline
Terkildsen, Cecilie Ulbæk
Choi, Julia T.
Nielsen, Jens Bo
Geertsen, Svend Sparre
Increased central common drive to ankle plantar flexor and dorsiflexor muscles during visually guided gait
title Increased central common drive to ankle plantar flexor and dorsiflexor muscles during visually guided gait
title_full Increased central common drive to ankle plantar flexor and dorsiflexor muscles during visually guided gait
title_fullStr Increased central common drive to ankle plantar flexor and dorsiflexor muscles during visually guided gait
title_full_unstemmed Increased central common drive to ankle plantar flexor and dorsiflexor muscles during visually guided gait
title_short Increased central common drive to ankle plantar flexor and dorsiflexor muscles during visually guided gait
title_sort increased central common drive to ankle plantar flexor and dorsiflexor muscles during visually guided gait
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5800295/
https://www.ncbi.nlm.nih.gov/pubmed/29405634
http://dx.doi.org/10.14814/phy2.13598
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