Cocoa flavanol effects on markers of oxidative stress and recovery after muscle damage protocol in elite rugby players

Objectives: Strenuous exercise can impair athletic performance due to muscular inflammation and oxidative stress. Antioxidants such as cocoa flavanols have been used as a supplement to prevent oxidative stress; however, the benefits of dietary antioxidants for athletic performance after muscle soren...

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Autores: Carvalho, Flavia Giolo de [UNESP], Fisher, Mitchell Garant, Thornley, Todd T., Roemer, Karen, Pritchett, Robert, Freitas, Ellen Cristini de [UNESP], Pritchett, Kelly
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:Brasil
Institución:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/184472
Acceso en línea:http://dx.doi.org/10.1016/j.nut.2018.10.035
http://hdl.handle.net/11449/184472
Access Level:acceso abierto
Palabra clave:Rugby
chocolate milk
cocoa flavanols
muscle damage
recovery
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spelling Cocoa flavanol effects on markers of oxidative stress and recovery after muscle damage protocol in elite rugby playersRugbychocolate milkcocoa flavanolsmuscle damagerecoveryObjectives: Strenuous exercise can impair athletic performance due to muscular inflammation and oxidative stress. Antioxidants such as cocoa flavanols have been used as a supplement to prevent oxidative stress; however, the benefits of dietary antioxidants for athletic performance after muscle soreness (MS) is unclear. The purpose of this study was to examine the effects of cocoa flavanols after a MS inducing protocol. Methods: In a randomized, double-blinded design, 13 male collegiate rugby players consumed either chocolate milk (CHOC) or chocolate milk with additional cocoa flavanols (CocoaCHOC) during a 7-d loading phase. MS was induced by a drop jump protocol on day 5 of the intervention. Athlete performance was assessed with vertical-jump and yo-yo tests and subjective measures of soreness 5 d before and 2 d post-MS protocol. Urinary markers of oxidative stress (isoprostanes) were assessed before and 48 h post-MS. Results: No changes were observed between the groups over time for isometric torque (P=.63), vertical jump performance (P=.39), and yo-yo testing (P =.57) between the trials. No interaction was found in isoprostanes levels between the trials (CocoaCHOC baseline: 88 +/- 0.38 pg/mL and 48 h post-MS: 81 +/- 0.53 pg/mL; P=.82; and CHOC baseline: 98 +/- 0.96 pg/mL and 48 h post-MS: 96 +/- 0.38 pg/mL; P=.59). No main effect (treatment x time; P = .58) was observed for isoprostanes. Although not significant, the CocoaCHOC group ran 97 meters further than the CHOC group in the yo-yo test. Conclusions: Cocoa flavanols added to a post-exercise recovery beverage for 7 d has no oxidative stress or athletic performance benefits. (C) 2018 Published by Elsevier Inc.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)State Univ Sao Paulo, Fac Pharmaceut Sci, Dept Food & Nutr, Postgrad Program Food & Nutr, Sao Paulo, BrazilUniv Sao Paulo, Sch Phys Educ & Sport Ribeirao Preto, Sao Paulo, BrazilCent Washington Univ, Dept Hlth Sci, Ellensburg, WA USAState Univ Sao Paulo, Fac Pharmaceut Sci, Dept Food & Nutr, Postgrad Program Food & Nutr, Sao Paulo, BrazilCAPES: 001Elsevier B.V.Universidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Cent Washington Univ2019-10-04T12:13:47Z2019-10-04T12:13:47Z2019-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article47-51http://dx.doi.org/10.1016/j.nut.2018.10.035Nutrition. New York: Elsevier Science Inc, v. 62, p. 47-51, 2019.0899-9007http://hdl.handle.net/11449/18447210.1016/j.nut.2018.10.035WOS:000466824700008Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengNutritioninfo:eu-repo/semantics/openAccessCarvalho, Flavia Giolo de [UNESP]Fisher, Mitchell GarantThornley, Todd T.Roemer, KarenPritchett, RobertFreitas, Ellen Cristini de [UNESP]Pritchett, Kelly2025-04-15T05:01:14Zoai:repositorio.unesp.br:11449/184472Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462025-04-15T05:01:14Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Cocoa flavanol effects on markers of oxidative stress and recovery after muscle damage protocol in elite rugby players
title Cocoa flavanol effects on markers of oxidative stress and recovery after muscle damage protocol in elite rugby players
spellingShingle Cocoa flavanol effects on markers of oxidative stress and recovery after muscle damage protocol in elite rugby players
Carvalho, Flavia Giolo de [UNESP]
Rugby
chocolate milk
cocoa flavanols
muscle damage
recovery
title_short Cocoa flavanol effects on markers of oxidative stress and recovery after muscle damage protocol in elite rugby players
title_full Cocoa flavanol effects on markers of oxidative stress and recovery after muscle damage protocol in elite rugby players
title_fullStr Cocoa flavanol effects on markers of oxidative stress and recovery after muscle damage protocol in elite rugby players
title_full_unstemmed Cocoa flavanol effects on markers of oxidative stress and recovery after muscle damage protocol in elite rugby players
title_sort Cocoa flavanol effects on markers of oxidative stress and recovery after muscle damage protocol in elite rugby players
dc.creator.none.fl_str_mv Carvalho, Flavia Giolo de [UNESP]
Fisher, Mitchell Garant
Thornley, Todd T.
Roemer, Karen
Pritchett, Robert
Freitas, Ellen Cristini de [UNESP]
Pritchett, Kelly
author Carvalho, Flavia Giolo de [UNESP]
author_facet Carvalho, Flavia Giolo de [UNESP]
Fisher, Mitchell Garant
Thornley, Todd T.
Roemer, Karen
Pritchett, Robert
Freitas, Ellen Cristini de [UNESP]
Pritchett, Kelly
author_role author
author2 Fisher, Mitchell Garant
Thornley, Todd T.
Roemer, Karen
Pritchett, Robert
Freitas, Ellen Cristini de [UNESP]
Pritchett, Kelly
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
Cent Washington Univ
dc.subject.por.fl_str_mv Rugby
chocolate milk
cocoa flavanols
muscle damage
recovery
topic Rugby
chocolate milk
cocoa flavanols
muscle damage
recovery
description Objectives: Strenuous exercise can impair athletic performance due to muscular inflammation and oxidative stress. Antioxidants such as cocoa flavanols have been used as a supplement to prevent oxidative stress; however, the benefits of dietary antioxidants for athletic performance after muscle soreness (MS) is unclear. The purpose of this study was to examine the effects of cocoa flavanols after a MS inducing protocol. Methods: In a randomized, double-blinded design, 13 male collegiate rugby players consumed either chocolate milk (CHOC) or chocolate milk with additional cocoa flavanols (CocoaCHOC) during a 7-d loading phase. MS was induced by a drop jump protocol on day 5 of the intervention. Athlete performance was assessed with vertical-jump and yo-yo tests and subjective measures of soreness 5 d before and 2 d post-MS protocol. Urinary markers of oxidative stress (isoprostanes) were assessed before and 48 h post-MS. Results: No changes were observed between the groups over time for isometric torque (P=.63), vertical jump performance (P=.39), and yo-yo testing (P =.57) between the trials. No interaction was found in isoprostanes levels between the trials (CocoaCHOC baseline: 88 +/- 0.38 pg/mL and 48 h post-MS: 81 +/- 0.53 pg/mL; P=.82; and CHOC baseline: 98 +/- 0.96 pg/mL and 48 h post-MS: 96 +/- 0.38 pg/mL; P=.59). No main effect (treatment x time; P = .58) was observed for isoprostanes. Although not significant, the CocoaCHOC group ran 97 meters further than the CHOC group in the yo-yo test. Conclusions: Cocoa flavanols added to a post-exercise recovery beverage for 7 d has no oxidative stress or athletic performance benefits. (C) 2018 Published by Elsevier Inc.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-04T12:13:47Z
2019-10-04T12:13:47Z
2019-06-01
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/10.1016/j.nut.2018.10.035
Nutrition. New York: Elsevier Science Inc, v. 62, p. 47-51, 2019.
0899-9007
http://hdl.handle.net/11449/184472
10.1016/j.nut.2018.10.035
WOS:000466824700008
url http://dx.doi.org/10.1016/j.nut.2018.10.035
http://hdl.handle.net/11449/184472
identifier_str_mv Nutrition. New York: Elsevier Science Inc, v. 62, p. 47-51, 2019.
0899-9007
10.1016/j.nut.2018.10.035
WOS:000466824700008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Nutrition
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 47-51
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
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 repositoriounesp@unesp.br
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score 15.301629

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