Comparison of trunk activity during gait initiation and walking in humans.
To understand the role of trunk muscles in maintenance of dynamic postural equilibrium we investigate trunk movements during gait initiation and walking, performing trunk kinematics analysis, Erector spinae muscle (ES) recordings and dynamic analysis. ES muscle expressed a metachronal descending pat...
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2009-12-01
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doaj-227a2714847e4e05bffe5df5727b67282020-11-25T02:02:56ZengPublic Library of Science (PLoS)PLoS ONE1932-62032009-12-01412e819310.1371/journal.pone.0008193Comparison of trunk activity during gait initiation and walking in humans.Jean-Charles CeccatoMathieu de SèzeChristine AzevedoJean-René CazaletsTo understand the role of trunk muscles in maintenance of dynamic postural equilibrium we investigate trunk movements during gait initiation and walking, performing trunk kinematics analysis, Erector spinae muscle (ES) recordings and dynamic analysis. ES muscle expressed a metachronal descending pattern of activity during walking and gait initiation. In the frontal and horizontal planes, lateroflexion and rotation occur before in the upper trunk and after in the lower trunk. Comparison of ES muscle EMGs and trunk kinematics showed that trunk muscle activity precedes corresponding kinematics activity, indicating that the ES drive trunk movement during locomotion and thereby allowing a better pelvis mobilization. EMG data showed that ES activity anticipates propulsive phases in walking with a repetitive pattern, suggesting a programmed control by a central pattern generator. Our findings also suggest that the programs for gait initiation and walking overlap with the latter beginning before the first has ended.http://europepmc.org/articles/PMC2782139?pdf=render |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jean-Charles Ceccato Mathieu de Sèze Christine Azevedo Jean-René Cazalets |
spellingShingle |
Jean-Charles Ceccato Mathieu de Sèze Christine Azevedo Jean-René Cazalets Comparison of trunk activity during gait initiation and walking in humans. PLoS ONE |
author_facet |
Jean-Charles Ceccato Mathieu de Sèze Christine Azevedo Jean-René Cazalets |
author_sort |
Jean-Charles Ceccato |
title |
Comparison of trunk activity during gait initiation and walking in humans. |
title_short |
Comparison of trunk activity during gait initiation and walking in humans. |
title_full |
Comparison of trunk activity during gait initiation and walking in humans. |
title_fullStr |
Comparison of trunk activity during gait initiation and walking in humans. |
title_full_unstemmed |
Comparison of trunk activity during gait initiation and walking in humans. |
title_sort |
comparison of trunk activity during gait initiation and walking in humans. |
publisher |
Public Library of Science (PLoS) |
series |
PLoS ONE |
issn |
1932-6203 |
publishDate |
2009-12-01 |
description |
To understand the role of trunk muscles in maintenance of dynamic postural equilibrium we investigate trunk movements during gait initiation and walking, performing trunk kinematics analysis, Erector spinae muscle (ES) recordings and dynamic analysis. ES muscle expressed a metachronal descending pattern of activity during walking and gait initiation. In the frontal and horizontal planes, lateroflexion and rotation occur before in the upper trunk and after in the lower trunk. Comparison of ES muscle EMGs and trunk kinematics showed that trunk muscle activity precedes corresponding kinematics activity, indicating that the ES drive trunk movement during locomotion and thereby allowing a better pelvis mobilization. EMG data showed that ES activity anticipates propulsive phases in walking with a repetitive pattern, suggesting a programmed control by a central pattern generator. Our findings also suggest that the programs for gait initiation and walking overlap with the latter beginning before the first has ended. |
url |
http://europepmc.org/articles/PMC2782139?pdf=render |
work_keys_str_mv |
AT jeancharlesceccato comparisonoftrunkactivityduringgaitinitiationandwalkinginhumans AT mathieudeseze comparisonoftrunkactivityduringgaitinitiationandwalkinginhumans AT christineazevedo comparisonoftrunkactivityduringgaitinitiationandwalkinginhumans AT jeanrenecazalets comparisonoftrunkactivityduringgaitinitiationandwalkinginhumans |
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