Exercise tolerance can be enhanced through a change in work rate within the severe intensity domain: work above critical power is not constant
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1371/journal.pone.0138428 http://hdl.handle.net/11449/131269 |
Resumo: | The characterization of the hyperbolic power-time (P-tlim) relationship using a two-parameter model implies that exercise tolerance above the asymptote (Critical Power; CP), i.e. within the severe intensity domain, is determined by the curvature (W') of the relationship. The purposes of this study were (1) to test whether the amount of work above CP (W>CP) remains constant for varied work rate experiments of high volatility change and (2) to ascertain whether W' determines exercise tolerance within the severe intensity domain. Following estimation of CP (208 ± 19 W) and W' (21.4 ± 4.2 kJ), 14 male participants (age: 26 ± 3; peak [Formula: see text]: 3708 ± 389 ml.min-1) performed two experimental trials where the work rate was initially set to exhaust 70% of W' in 3 ('THREE') or 10 minutes ('TEN') before being subsequently dropped to CP plus 10 W. W>CP for TEN (104 ± 22% W') and W' were not significantly different (P>0.05) but lower than W>CP for THREE (119 ± 17% W', P<0.05). For both THREE (r = 0.71, P<0.01) and TEN (r = 0.64, P<0.01), a significant bivariate correlation was found between W' and tlim. W>CP and tlim can be greater than predicted by the P-tlim relationship when a decrement in the work rate of high-volatility is applied. Exercise tolerance can be enhanced through a change in work rate within the severe intensity domain. W>CP is not constant. |
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Repositório Institucional da UNESP |
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spelling |
Exercise tolerance can be enhanced through a change in work rate within the severe intensity domain: work above critical power is not constantThe characterization of the hyperbolic power-time (P-tlim) relationship using a two-parameter model implies that exercise tolerance above the asymptote (Critical Power; CP), i.e. within the severe intensity domain, is determined by the curvature (W') of the relationship. The purposes of this study were (1) to test whether the amount of work above CP (W>CP) remains constant for varied work rate experiments of high volatility change and (2) to ascertain whether W' determines exercise tolerance within the severe intensity domain. Following estimation of CP (208 ± 19 W) and W' (21.4 ± 4.2 kJ), 14 male participants (age: 26 ± 3; peak [Formula: see text]: 3708 ± 389 ml.min-1) performed two experimental trials where the work rate was initially set to exhaust 70% of W' in 3 ('THREE') or 10 minutes ('TEN') before being subsequently dropped to CP plus 10 W. W>CP for TEN (104 ± 22% W') and W' were not significantly different (P>0.05) but lower than W>CP for THREE (119 ± 17% W', P<0.05). For both THREE (r = 0.71, P<0.01) and TEN (r = 0.64, P<0.01), a significant bivariate correlation was found between W' and tlim. W>CP and tlim can be greater than predicted by the P-tlim relationship when a decrement in the work rate of high-volatility is applied. Exercise tolerance can be enhanced through a change in work rate within the severe intensity domain. W>CP is not constant.Centre for Sport and Exercise Science and Medicine, University of Brighton, Eastbourne, United KingdomPhysical Effort Laboratory, Sports Center, Federal University of Santa Catarina, Florianópolis, BrazilUNESP, Human Performance Laboratory, Rio Claro, BrazilUNESP, Human Performance Laboratory, Rio Claro, BrazilPublic Library ScienceUniversity of BrightonUniversidade Federal de Santa Catarina (UFSC)Universidade Estadual Paulista (Unesp)Dekerle, JeanneSouza, Kristopher Mendes deLucas, Ricardo Dantas deGuglielmo, Luiz Guilherme AntonacciGreco, Camila Coelho [UNESP]Denadai, Benedito Sérgio [UNESP]2015-12-07T15:33:16Z2015-12-07T15:33:16Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1371/journal.pone.0138428Plos One, v. 10, n. 9, 2015.1932-6203http://hdl.handle.net/11449/13126910.1371/journal.pone.0138428PMC4583487.pdf7416129894680689190747925083303326407169PMC4583487PubMedreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPlos One2.7661,164info:eu-repo/semantics/openAccess2024-01-14T06:19:56Zoai:repositorio.unesp.br:11449/131269Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:56:07.531453Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Exercise tolerance can be enhanced through a change in work rate within the severe intensity domain: work above critical power is not constant |
title |
Exercise tolerance can be enhanced through a change in work rate within the severe intensity domain: work above critical power is not constant |
spellingShingle |
Exercise tolerance can be enhanced through a change in work rate within the severe intensity domain: work above critical power is not constant Dekerle, Jeanne |
title_short |
Exercise tolerance can be enhanced through a change in work rate within the severe intensity domain: work above critical power is not constant |
title_full |
Exercise tolerance can be enhanced through a change in work rate within the severe intensity domain: work above critical power is not constant |
title_fullStr |
Exercise tolerance can be enhanced through a change in work rate within the severe intensity domain: work above critical power is not constant |
title_full_unstemmed |
Exercise tolerance can be enhanced through a change in work rate within the severe intensity domain: work above critical power is not constant |
title_sort |
Exercise tolerance can be enhanced through a change in work rate within the severe intensity domain: work above critical power is not constant |
author |
Dekerle, Jeanne |
author_facet |
Dekerle, Jeanne Souza, Kristopher Mendes de Lucas, Ricardo Dantas de Guglielmo, Luiz Guilherme Antonacci Greco, Camila Coelho [UNESP] Denadai, Benedito Sérgio [UNESP] |
author_role |
author |
author2 |
Souza, Kristopher Mendes de Lucas, Ricardo Dantas de Guglielmo, Luiz Guilherme Antonacci Greco, Camila Coelho [UNESP] Denadai, Benedito Sérgio [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
University of Brighton Universidade Federal de Santa Catarina (UFSC) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Dekerle, Jeanne Souza, Kristopher Mendes de Lucas, Ricardo Dantas de Guglielmo, Luiz Guilherme Antonacci Greco, Camila Coelho [UNESP] Denadai, Benedito Sérgio [UNESP] |
description |
The characterization of the hyperbolic power-time (P-tlim) relationship using a two-parameter model implies that exercise tolerance above the asymptote (Critical Power; CP), i.e. within the severe intensity domain, is determined by the curvature (W') of the relationship. The purposes of this study were (1) to test whether the amount of work above CP (W>CP) remains constant for varied work rate experiments of high volatility change and (2) to ascertain whether W' determines exercise tolerance within the severe intensity domain. Following estimation of CP (208 ± 19 W) and W' (21.4 ± 4.2 kJ), 14 male participants (age: 26 ± 3; peak [Formula: see text]: 3708 ± 389 ml.min-1) performed two experimental trials where the work rate was initially set to exhaust 70% of W' in 3 ('THREE') or 10 minutes ('TEN') before being subsequently dropped to CP plus 10 W. W>CP for TEN (104 ± 22% W') and W' were not significantly different (P>0.05) but lower than W>CP for THREE (119 ± 17% W', P<0.05). For both THREE (r = 0.71, P<0.01) and TEN (r = 0.64, P<0.01), a significant bivariate correlation was found between W' and tlim. W>CP and tlim can be greater than predicted by the P-tlim relationship when a decrement in the work rate of high-volatility is applied. Exercise tolerance can be enhanced through a change in work rate within the severe intensity domain. W>CP is not constant. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-07T15:33:16Z 2015-12-07T15:33:16Z 2015 |
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/10.1371/journal.pone.0138428 Plos One, v. 10, n. 9, 2015. 1932-6203 http://hdl.handle.net/11449/131269 10.1371/journal.pone.0138428 PMC4583487.pdf 7416129894680689 1907479250833033 26407169 PMC4583487 |
url |
http://dx.doi.org/10.1371/journal.pone.0138428 http://hdl.handle.net/11449/131269 |
identifier_str_mv |
Plos One, v. 10, n. 9, 2015. 1932-6203 10.1371/journal.pone.0138428 PMC4583487.pdf 7416129894680689 1907479250833033 26407169 PMC4583487 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Plos One 2.766 1,164 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Public Library Science |
publisher.none.fl_str_mv |
Public Library Science |
dc.source.none.fl_str_mv |
PubMed 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 |
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1808129475312877568 |