Adaptation of muscle coordination to altered task mechanics during steady-state cycling
Gespeichert in:
| Deutscher übersetzter Titel: | Anpassung der Muskelkoordination an geaenderte mechanische Bedingungen beim Pedalarbeit im Steady-state |
|---|---|
| Autor: | Neptune, R.R.; Herzog, W. |
| Erschienen in: | Journal of biomechanics |
| Veröffentlicht: | 33 (2000), 2, S. 165-172, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
| Sprache: | Englisch |
| ISSN: | 0021-9290, 1873-2380 |
| DOI: | 10.1016/S0021-9290(99)00149-9 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU199912405544 |
| Quelle: | BISp |
| id |
PU199912405544 |
|---|---|
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db |
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Literatur |
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2022-07-18T08:19:30Z |
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2001-07-24T13:53:02Z |
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BISp |
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Zeitschriftenartikel |
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JO00000000723 |
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JOI200000020000723 |
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Journal of biomechanics |
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Journal of biomechanics, 2000, 2 |
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PU199912405544 |
| is_hierarchy_title |
Adaptation of muscle coordination to altered task mechanics during steady-state cycling |
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0165 |
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bisparticle |
| publishDate |
2000 |
| publishDate_facet |
2000 |
| language |
eng |
| title |
Adaptation of muscle coordination to altered task mechanics during steady-state cycling |
| spellingShingle |
Adaptation of muscle coordination to altered task mechanics during steady-state cycling Analyse, biomechanische Bewegungskontrolle Bewegungslehre Biomechanik Elektromyographie Kettenblatt Kinematik Kinetik Muskelaktivität Muskelkoordination Pedalarbeit Präferenz Selbstbestimmung Skelettmuskulatur Tretfrequenz |
| title_sort |
adaptation of muscle coordination to altered task mechanics during steadystate cycling |
| title_short |
Adaptation of muscle coordination to altered task mechanics during steady-state cycling |
| title_alt |
Anpassung der Muskelkoordination an geaenderte mechanische Bedingungen beim Pedalarbeit im Steady-state |
| title_alt_lang |
deu |
| media_type |
Gedruckte Ressource Elektronische Ressource (online) |
| city |
New York (N.Y.) |
| abstract |
The objective of this work was to increase our understanding of how motor patterns are produced during movement tasks by quantifying adaptations in muscle coordination in response to altered task mechanics. We used pedaling as our movement paradigm because it is a constrained cyclical movement that allows for a controlled investigation of test conditions such as movement speed and effort. Altered task mechanics were introduced using an elliptical chainring. The kinematics of the crank were changed from a relatively constant angular velocity using a circular chainring to a widely varying angular velocity using an elliptical chainring. Kinetic, kinematic and muscle activity data were collected from eight competitive cyclists using three different chainrings - one circular and two different orientations of an elliptical chainring. We tested the hypotheses that muscle coordination patterns (EMG timing and magnitude), specifically the regions of active muscle force production, would shift towards regions in the crank cycle in which the crank angular velocity, and hence muscle contraction speeds, were favorable to produce muscle power as defined by the skeletal muscle power-velocity relationship. The results showed that our hypothesis with regards to timing was not supported. Although there were statistically significant shifts in muscle timing, the shifts were minor in absolute terms and appeared to be the result of the muscles accounting for the activation dynamics associated with muscle force development (i.e. the delay in muscle force rise and decay). But, significant changes in the magnitude of muscle EMG during regions of slow crank angular velocity for the tibialis anterior and rectus femoris were observed. Thus, the nervous system used adaptations to the muscle EMG magnitude, rather than the timing, to adapt to the altered task mechanics. The results also suggested that cyclists might work on the descending limb of the power-velocity relationship when pedaling at 90 rpm and sub-maximal power output. This finding might have important implications for preferred pedaling rate selection. Verf.-Referat |
| abstract_lang |
eng |
| abstract_type |
author |
| author2 |
Neptune, R.R. Herzog, W. |
| author_facet |
Neptune, R.R. Herzog, W. |
| author2-role |
Autor Autor |
| author2-authorityid |
|
| author_author_facet |
Neptune, R.R. Herzog, W. |
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|
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0/Autor/ 1/Autor/Neptune, R.R./ 0/Autor/ 1/Autor/Herzog, W./ |
| doi |
10.1016/S0021-9290(99)00149-9 |
| spelling |
10.1016/S0021-9290(99)00149-9 0021-9290 1873-2380 JBMCB 218076-5 Analyse, biomechanische Bewegungskontrolle Bewegungslehre Biomechanik Elektromyographie Kettenblatt Kinematik Kinetik Muskelaktivität Muskelkoordination Pedalarbeit Präferenz Selbstbestimmung Skelettmuskulatur Tretfrequenz biomechanical analysis biomechanics cadence chainring electromyography kinematics kinetics motor control movement theory muscle activity muscle coordination pedal work preference self-determination skeletal muscles Koordination Amplitude Elektromyogramm EMG Biokinetik Muskelaktion Analyse, methodische Aufzeichnung, biomechanische Untersuchung, biomechanische Tretgeschwindigkeit Bewegungsforschung Bewegungstheorie Muskulatur Skelettmuskel Muskel Bewegung, physikalische Merkmal, biomechanisches Biokinematik Prinzip, biomechanisches movement control movement science Adaptation of muscle coordination to altered task mechanics during steady-state cycling PU199912405544 199912405544 |
| url |
https://dx.doi.org/10.1016/S0021-9290(99)00149-9 |
| url-type |
fulltext |
| url-free |
1 |
| free_access |
1 |
| issn |
0021-9290 1873-2380 |
| coden |
JBMCB |
| zdb |
218076-5 |
| location_hierarchy_facet |
0/USA/ 1/USA/New York/ |
| topic |
Analyse, biomechanische Bewegungskontrolle Bewegungslehre Biomechanik Elektromyographie Kettenblatt Kinematik Kinetik Muskelaktivität Muskelkoordination Pedalarbeit Präferenz Selbstbestimmung Skelettmuskulatur Tretfrequenz |
| topic_facet |
Analyse, biomechanische Bewegungskontrolle Bewegungslehre Biomechanik Elektromyographie Kettenblatt Kinematik Kinetik Muskelaktivität Muskelkoordination Pedalarbeit Präferenz Selbstbestimmung Skelettmuskulatur Tretfrequenz |
| topic_en |
biomechanical analysis biomechanics cadence chainring electromyography kinematics kinetics motor control movement theory muscle activity muscle coordination pedal work preference self-determination skeletal muscles |
| topic_en_facet |
biomechanical analysis biomechanics cadence chainring electromyography kinematics kinetics motor control movement theory muscle activity muscle coordination pedal work preference self-determination skeletal muscles |
| synonym |
Koordination Amplitude Elektromyogramm EMG Biokinetik Muskelaktion Analyse, methodische Aufzeichnung, biomechanische Untersuchung, biomechanische Tretgeschwindigkeit Bewegungsforschung Bewegungstheorie Muskulatur Skelettmuskel Muskel Bewegung, physikalische Merkmal, biomechanisches Biokinematik Prinzip, biomechanisches |
| synonym_en |
movement control movement science |
| journal_facet |
Journal of biomechanics |
| container_title |
Journal of biomechanics |
| container_volume |
33 |
| container_issue |
2 |
| container_start_page |
S. 165-172 |
| has_references |
1 |
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BISp |
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JO00000000723 |
| journal_year |
2000 |
| journal_issue |
2 |
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1791516172279087104 |
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13,561486 |