Fast muscle function in the European eel (Anguilla anguilla L.) during aquatic and terrestrial locomotion
Eels are capable of locomotion both in water and on land using undulations of the body axis. Axial undulations are powered by the lateral musculature. Differences in kinematics and the underlying patterns of fast muscle activation are apparent between locomotion in these two environments. The change...
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fthighwire:oai:open-archive.highwire.org:jexbio:204/13/2231 2023-05-15T13:27:54+02:00 Fast muscle function in the European eel (Anguilla anguilla L.) during aquatic and terrestrial locomotion Ellerby, D. J. Spierts, I. L. Y. Altringham, J. D. 2001-07-01 00:00:00.0 text/html http://jeb.biologists.org/cgi/content/short/204/13/2231 en eng Company of Biologists http://jeb.biologists.org/cgi/content/short/204/13/2231 Copyright (C) 2001, Company of Biologists Research Articles TEXT 2001 fthighwire 2013-05-27T04:28:35Z Eels are capable of locomotion both in water and on land using undulations of the body axis. Axial undulations are powered by the lateral musculature. Differences in kinematics and the underlying patterns of fast muscle activation are apparent between locomotion in these two environments. The change in isometric fast muscle properties with axial location was less marked than in most other species. Time from stimulus to peak force ( T a ) did not change significantly with axial position and was 82±6ms at 0.45 BL and 93±3ms at 0.75 BL , where BL is total body length. Time from stimulus to 90% relaxation ( T 90 ) changed significantly with axial location, increasing from 203±11ms at 0.45 BL to 239±9ms at 0.75 BL . Fast muscle power outputs were measured using the work loop technique. Maximum power outputs at ±5% strain using optimal stimuli were 17.3±1.3Wkg−1 in muscle from 0.45 BL and 16.3±1.5Wkg−1 in muscle from 0.75 BL . Power output peaked at a cycle frequency of 2Hz. The stimulus patterns associated with swimming generated greater force and power than those associated with terrestrial crawling. This decrease in muscle performance in eels may occur because on land the eel is constrained to a particular kinematic pattern in order to produce thrust against an underlying substratum. Text Anguilla anguilla European eel HighWire Press (Stanford University) |
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Research Articles |
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Research Articles Ellerby, D. J. Spierts, I. L. Y. Altringham, J. D. Fast muscle function in the European eel (Anguilla anguilla L.) during aquatic and terrestrial locomotion |
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Research Articles |
description |
Eels are capable of locomotion both in water and on land using undulations of the body axis. Axial undulations are powered by the lateral musculature. Differences in kinematics and the underlying patterns of fast muscle activation are apparent between locomotion in these two environments. The change in isometric fast muscle properties with axial location was less marked than in most other species. Time from stimulus to peak force ( T a ) did not change significantly with axial position and was 82±6ms at 0.45 BL and 93±3ms at 0.75 BL , where BL is total body length. Time from stimulus to 90% relaxation ( T 90 ) changed significantly with axial location, increasing from 203±11ms at 0.45 BL to 239±9ms at 0.75 BL . Fast muscle power outputs were measured using the work loop technique. Maximum power outputs at ±5% strain using optimal stimuli were 17.3±1.3Wkg−1 in muscle from 0.45 BL and 16.3±1.5Wkg−1 in muscle from 0.75 BL . Power output peaked at a cycle frequency of 2Hz. The stimulus patterns associated with swimming generated greater force and power than those associated with terrestrial crawling. This decrease in muscle performance in eels may occur because on land the eel is constrained to a particular kinematic pattern in order to produce thrust against an underlying substratum. |
format |
Text |
author |
Ellerby, D. J. Spierts, I. L. Y. Altringham, J. D. |
author_facet |
Ellerby, D. J. Spierts, I. L. Y. Altringham, J. D. |
author_sort |
Ellerby, D. J. |
title |
Fast muscle function in the European eel (Anguilla anguilla L.) during aquatic and terrestrial locomotion |
title_short |
Fast muscle function in the European eel (Anguilla anguilla L.) during aquatic and terrestrial locomotion |
title_full |
Fast muscle function in the European eel (Anguilla anguilla L.) during aquatic and terrestrial locomotion |
title_fullStr |
Fast muscle function in the European eel (Anguilla anguilla L.) during aquatic and terrestrial locomotion |
title_full_unstemmed |
Fast muscle function in the European eel (Anguilla anguilla L.) during aquatic and terrestrial locomotion |
title_sort |
fast muscle function in the european eel (anguilla anguilla l.) during aquatic and terrestrial locomotion |
publisher |
Company of Biologists |
publishDate |
2001 |
url |
http://jeb.biologists.org/cgi/content/short/204/13/2231 |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_relation |
http://jeb.biologists.org/cgi/content/short/204/13/2231 |
op_rights |
Copyright (C) 2001, Company of Biologists |
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1766401052781838336 |