Effect of a previous high intensity running exercise on isokinetic muscular strength in individuals with different training backgrounds
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3233/IES-2010-0362 http://hdl.handle.net/11449/20741 |
Resumo: | The objective of this study was to compare the effects of high intensity running exercise on the strength of the knee extensors at concentric and eccentric conditions in individuals with different training background. Sixteen physically active (SED), 11 endurance-trained (ET) and 7 strength-trained (ST) subjects volunteered to participate in the study. Initially each subject performed, on different days, one familiarization session on an isokinetic dynamometer and an incremental treadmill test to volitional exhaustion to determine the velocity at the onset of blood lactate accumulation (OBLA). The subjects then returned to the laboratory on two experimental sessions, separated by at least five days, to perform maximal isokinetic eccentric (E) and concentric (C) contractions of the quadriceps at 180 degrees/s. One session was performed after a standardized warm-up period (5 min at 50% VO(2)max) and the other session was performed after a continuous running at 95% OBLA. The duration of this session was estimated to a caloric expenditure around 500 Kcal. Following this high intensity exercise there was a significant reduction in the peak torque in E in all groups. The percent strength loss in E following the running exercise was statistically higher in ST (16.5%) when compared to SED (6.5%) and ET (7.2%). We thus conclude that the reduction in isokinetic peak torque of the knee extensors after a session of high intensity running exercise at 95% OBLA depends on the contraction type and training background. |
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Effect of a previous high intensity running exercise on isokinetic muscular strength in individuals with different training backgroundsConcentriceccentricaerobic exercisefatigueThe objective of this study was to compare the effects of high intensity running exercise on the strength of the knee extensors at concentric and eccentric conditions in individuals with different training background. Sixteen physically active (SED), 11 endurance-trained (ET) and 7 strength-trained (ST) subjects volunteered to participate in the study. Initially each subject performed, on different days, one familiarization session on an isokinetic dynamometer and an incremental treadmill test to volitional exhaustion to determine the velocity at the onset of blood lactate accumulation (OBLA). The subjects then returned to the laboratory on two experimental sessions, separated by at least five days, to perform maximal isokinetic eccentric (E) and concentric (C) contractions of the quadriceps at 180 degrees/s. One session was performed after a standardized warm-up period (5 min at 50% VO(2)max) and the other session was performed after a continuous running at 95% OBLA. The duration of this session was estimated to a caloric expenditure around 500 Kcal. Following this high intensity exercise there was a significant reduction in the peak torque in E in all groups. The percent strength loss in E following the running exercise was statistically higher in ST (16.5%) when compared to SED (6.5%) and ET (7.2%). We thus conclude that the reduction in isokinetic peak torque of the knee extensors after a session of high intensity running exercise at 95% OBLA depends on the contraction type and training background.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)UNESP, Human Performance Lab, BR-13506900 Rio Claro, SP, BrazilUNESP, Human Performance Lab, BR-13506900 Rio Claro, SP, BrazilIOS PressUniversidade Estadual Paulista (Unesp)Denadai, Benedito Sergio [UNESP]Corvino, Rogerio Bulhoes [UNESP]Greco, Camila Coelho [UNESP]2013-09-30T18:49:09Z2014-05-20T13:58:23Z2013-09-30T18:49:09Z2014-05-20T13:58:23Z2010-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article15-21http://dx.doi.org/10.3233/IES-2010-0362Isokinetics and Exercise Science. Amsterdam: IOS Press, v. 18, n. 1, p. 15-21, 2010.0959-3020http://hdl.handle.net/11449/2074110.3233/IES-2010-0362WOS:00027672570000319074792508330337416129894680689Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIsokinetics and Exercise Science0.5680,222info:eu-repo/semantics/openAccess2021-10-23T11:48:03Zoai:repositorio.unesp.br:11449/20741Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:09:45.646121Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of a previous high intensity running exercise on isokinetic muscular strength in individuals with different training backgrounds |
title |
Effect of a previous high intensity running exercise on isokinetic muscular strength in individuals with different training backgrounds |
spellingShingle |
Effect of a previous high intensity running exercise on isokinetic muscular strength in individuals with different training backgrounds Denadai, Benedito Sergio [UNESP] Concentric eccentric aerobic exercise fatigue |
title_short |
Effect of a previous high intensity running exercise on isokinetic muscular strength in individuals with different training backgrounds |
title_full |
Effect of a previous high intensity running exercise on isokinetic muscular strength in individuals with different training backgrounds |
title_fullStr |
Effect of a previous high intensity running exercise on isokinetic muscular strength in individuals with different training backgrounds |
title_full_unstemmed |
Effect of a previous high intensity running exercise on isokinetic muscular strength in individuals with different training backgrounds |
title_sort |
Effect of a previous high intensity running exercise on isokinetic muscular strength in individuals with different training backgrounds |
author |
Denadai, Benedito Sergio [UNESP] |
author_facet |
Denadai, Benedito Sergio [UNESP] Corvino, Rogerio Bulhoes [UNESP] Greco, Camila Coelho [UNESP] |
author_role |
author |
author2 |
Corvino, Rogerio Bulhoes [UNESP] Greco, Camila Coelho [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Denadai, Benedito Sergio [UNESP] Corvino, Rogerio Bulhoes [UNESP] Greco, Camila Coelho [UNESP] |
dc.subject.por.fl_str_mv |
Concentric eccentric aerobic exercise fatigue |
topic |
Concentric eccentric aerobic exercise fatigue |
description |
The objective of this study was to compare the effects of high intensity running exercise on the strength of the knee extensors at concentric and eccentric conditions in individuals with different training background. Sixteen physically active (SED), 11 endurance-trained (ET) and 7 strength-trained (ST) subjects volunteered to participate in the study. Initially each subject performed, on different days, one familiarization session on an isokinetic dynamometer and an incremental treadmill test to volitional exhaustion to determine the velocity at the onset of blood lactate accumulation (OBLA). The subjects then returned to the laboratory on two experimental sessions, separated by at least five days, to perform maximal isokinetic eccentric (E) and concentric (C) contractions of the quadriceps at 180 degrees/s. One session was performed after a standardized warm-up period (5 min at 50% VO(2)max) and the other session was performed after a continuous running at 95% OBLA. The duration of this session was estimated to a caloric expenditure around 500 Kcal. Following this high intensity exercise there was a significant reduction in the peak torque in E in all groups. The percent strength loss in E following the running exercise was statistically higher in ST (16.5%) when compared to SED (6.5%) and ET (7.2%). We thus conclude that the reduction in isokinetic peak torque of the knee extensors after a session of high intensity running exercise at 95% OBLA depends on the contraction type and training background. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-01-01 2013-09-30T18:49:09Z 2013-09-30T18:49:09Z 2014-05-20T13:58:23Z 2014-05-20T13:58:23Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.3233/IES-2010-0362 Isokinetics and Exercise Science. Amsterdam: IOS Press, v. 18, n. 1, p. 15-21, 2010. 0959-3020 http://hdl.handle.net/11449/20741 10.3233/IES-2010-0362 WOS:000276725700003 1907479250833033 7416129894680689 |
url |
http://dx.doi.org/10.3233/IES-2010-0362 http://hdl.handle.net/11449/20741 |
identifier_str_mv |
Isokinetics and Exercise Science. Amsterdam: IOS Press, v. 18, n. 1, p. 15-21, 2010. 0959-3020 10.3233/IES-2010-0362 WOS:000276725700003 1907479250833033 7416129894680689 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Isokinetics and Exercise Science 0.568 0,222 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
15-21 |
dc.publisher.none.fl_str_mv |
IOS Press |
publisher.none.fl_str_mv |
IOS Press |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128764758982656 |