Respuesta fisiológica y perceptual en la velocidad crítica y punto de compensación respiratoria

Detalhes bibliográficos
Autor(a) principal: Massini, Danilo Alexandre [UNESP]
Data de Publicação: 2016
Outros Autores: Pessôa Filho, Dalton Muller [UNESP], Caritá, Renato Aparecido Corrêa [UNESP], Denadai, Benedito Sérgio [UNESP]
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/1517-869220162206158906
http://hdl.handle.net/11449/178496
Resumo: Introduction: The respiratory compensation point (RCP) is the metabolic rate for a maximal incremental test, from which the control of the acid-base balance is lost. However, the critical velocity (CV) defines the upper limit of the heavy exercise domain, in which the exhaustion is not related to metabolic disturbance. Objective: To compare the physiological (heart rate - HR, blood lactate - [La], and oxygen uptake - VO2) and perceptual (rating of perceived exertion - RPE) responses, while exercising at CV and at RCP, in order to analyze contextual similarities. Methods: Ten adolescent runners (15.8±1.7 years old) underwent progressive test (increments of 1.0 km×h-1 per minute until exhaustion) to determine VO2max, RCP and the correspondent velocities. The CV was estimated for three efforts with time limit of 2 to 12 minutes. The participants performed two efforts of seven minutes each on separate days, in CV and vRCP HR, RPE (scale 6-20) were recorded every minute, and [La] was measured at rest and after each effort. The VO2 was analyzed breath by breath during efforts. The Mann-Whitney test compared HR, [La], VO2, and RPE responses in CV and vRCP. The variance between these responses was examined by the scatter coefficient (R2). The significance level was P≤0.05. Results: The maximum values in the progressive test were 56.1±5.5 ml×kg-1×min-1 (VO2max), 16.5±1.7 km×h-1 (vVO2max), 202±12 bpm (HRmax), 19.4±1.3 (RPE) and 12.7±3.1 mmol×L-1 ([La]). No differences were observed between CV (at 83.8±3.6% vVO2max) and vRCP (at 86.5±3.6% vVO2max) in RPE responses (P=0.761), HR (P=0.096), [La] (P=0.104) and VO2 (P=0.364) responses. Correlations were observed between the CV and vRCP in [La] (R2=0.76; P=0.011), RPE (R2=0.84; P<0.01) and VO2max (R2=0.82; P<0.01) responses. Conclusion: It was inferred that exercise in RCP reproduced a physiological and perceptual response similar to that in CV.
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spelling Respuesta fisiológica y perceptual en la velocidad crítica y punto de compensación respiratoriaResposta fisiológica e perceptual na velocidade crítica e ponto de compensação respiratóriaPhysiological and perceptual response at critical speed and respiratory compensation pointExerciseHeart rateLactic acidOxygen consumptionIntroduction: The respiratory compensation point (RCP) is the metabolic rate for a maximal incremental test, from which the control of the acid-base balance is lost. However, the critical velocity (CV) defines the upper limit of the heavy exercise domain, in which the exhaustion is not related to metabolic disturbance. Objective: To compare the physiological (heart rate - HR, blood lactate - [La], and oxygen uptake - VO2) and perceptual (rating of perceived exertion - RPE) responses, while exercising at CV and at RCP, in order to analyze contextual similarities. Methods: Ten adolescent runners (15.8±1.7 years old) underwent progressive test (increments of 1.0 km×h-1 per minute until exhaustion) to determine VO2max, RCP and the correspondent velocities. The CV was estimated for three efforts with time limit of 2 to 12 minutes. The participants performed two efforts of seven minutes each on separate days, in CV and vRCP HR, RPE (scale 6-20) were recorded every minute, and [La] was measured at rest and after each effort. The VO2 was analyzed breath by breath during efforts. The Mann-Whitney test compared HR, [La], VO2, and RPE responses in CV and vRCP. The variance between these responses was examined by the scatter coefficient (R2). The significance level was P≤0.05. Results: The maximum values in the progressive test were 56.1±5.5 ml×kg-1×min-1 (VO2max), 16.5±1.7 km×h-1 (vVO2max), 202±12 bpm (HRmax), 19.4±1.3 (RPE) and 12.7±3.1 mmol×L-1 ([La]). No differences were observed between CV (at 83.8±3.6% vVO2max) and vRCP (at 86.5±3.6% vVO2max) in RPE responses (P=0.761), HR (P=0.096), [La] (P=0.104) and VO2 (P=0.364) responses. Correlations were observed between the CV and vRCP in [La] (R2=0.76; P=0.011), RPE (R2=0.84; P<0.01) and VO2max (R2=0.82; P<0.01) responses. Conclusion: It was inferred that exercise in RCP reproduced a physiological and perceptual response similar to that in CV.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Faculdade de Ciências Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)Laboratório de Performance Humana Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)Faculdade de Ciências Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)Laboratório de Performance Humana Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)CNPq: 479262/2013-6Universidade Estadual Paulista (Unesp)Massini, Danilo Alexandre [UNESP]Pessôa Filho, Dalton Muller [UNESP]Caritá, Renato Aparecido Corrêa [UNESP]Denadai, Benedito Sérgio [UNESP]2018-12-11T17:30:38Z2018-12-11T17:30:38Z2016-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article439-444application/pdfhttp://dx.doi.org/10.1590/1517-869220162206158906Revista Brasileira de Medicina do Esporte, v. 22, n. 6, p. 439-444, 2016.1517-8692http://hdl.handle.net/11449/17849610.1590/1517-869220162206158906S1517-869220160006004392-s2.0-85006364934S1517-86922016000600439.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Medicina do Esporte0,185info:eu-repo/semantics/openAccess2023-10-24T06:12:59Zoai:repositorio.unesp.br:11449/178496Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:51:36.979868Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Respuesta fisiológica y perceptual en la velocidad crítica y punto de compensación respiratoria
Resposta fisiológica e perceptual na velocidade crítica e ponto de compensação respiratória
Physiological and perceptual response at critical speed and respiratory compensation point
title Respuesta fisiológica y perceptual en la velocidad crítica y punto de compensación respiratoria
spellingShingle Respuesta fisiológica y perceptual en la velocidad crítica y punto de compensación respiratoria
Massini, Danilo Alexandre [UNESP]
Exercise
Heart rate
Lactic acid
Oxygen consumption
title_short Respuesta fisiológica y perceptual en la velocidad crítica y punto de compensación respiratoria
title_full Respuesta fisiológica y perceptual en la velocidad crítica y punto de compensación respiratoria
title_fullStr Respuesta fisiológica y perceptual en la velocidad crítica y punto de compensación respiratoria
title_full_unstemmed Respuesta fisiológica y perceptual en la velocidad crítica y punto de compensación respiratoria
title_sort Respuesta fisiológica y perceptual en la velocidad crítica y punto de compensación respiratoria
author Massini, Danilo Alexandre [UNESP]
author_facet Massini, Danilo Alexandre [UNESP]
Pessôa Filho, Dalton Muller [UNESP]
Caritá, Renato Aparecido Corrêa [UNESP]
Denadai, Benedito Sérgio [UNESP]
author_role author
author2 Pessôa Filho, Dalton Muller [UNESP]
Caritá, Renato Aparecido Corrêa [UNESP]
Denadai, Benedito Sérgio [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Massini, Danilo Alexandre [UNESP]
Pessôa Filho, Dalton Muller [UNESP]
Caritá, Renato Aparecido Corrêa [UNESP]
Denadai, Benedito Sérgio [UNESP]
dc.subject.por.fl_str_mv Exercise
Heart rate
Lactic acid
Oxygen consumption
topic Exercise
Heart rate
Lactic acid
Oxygen consumption
description Introduction: The respiratory compensation point (RCP) is the metabolic rate for a maximal incremental test, from which the control of the acid-base balance is lost. However, the critical velocity (CV) defines the upper limit of the heavy exercise domain, in which the exhaustion is not related to metabolic disturbance. Objective: To compare the physiological (heart rate - HR, blood lactate - [La], and oxygen uptake - VO2) and perceptual (rating of perceived exertion - RPE) responses, while exercising at CV and at RCP, in order to analyze contextual similarities. Methods: Ten adolescent runners (15.8±1.7 years old) underwent progressive test (increments of 1.0 km×h-1 per minute until exhaustion) to determine VO2max, RCP and the correspondent velocities. The CV was estimated for three efforts with time limit of 2 to 12 minutes. The participants performed two efforts of seven minutes each on separate days, in CV and vRCP HR, RPE (scale 6-20) were recorded every minute, and [La] was measured at rest and after each effort. The VO2 was analyzed breath by breath during efforts. The Mann-Whitney test compared HR, [La], VO2, and RPE responses in CV and vRCP. The variance between these responses was examined by the scatter coefficient (R2). The significance level was P≤0.05. Results: The maximum values in the progressive test were 56.1±5.5 ml×kg-1×min-1 (VO2max), 16.5±1.7 km×h-1 (vVO2max), 202±12 bpm (HRmax), 19.4±1.3 (RPE) and 12.7±3.1 mmol×L-1 ([La]). No differences were observed between CV (at 83.8±3.6% vVO2max) and vRCP (at 86.5±3.6% vVO2max) in RPE responses (P=0.761), HR (P=0.096), [La] (P=0.104) and VO2 (P=0.364) responses. Correlations were observed between the CV and vRCP in [La] (R2=0.76; P=0.011), RPE (R2=0.84; P<0.01) and VO2max (R2=0.82; P<0.01) responses. Conclusion: It was inferred that exercise in RCP reproduced a physiological and perceptual response similar to that in CV.
publishDate 2016
dc.date.none.fl_str_mv 2016-01-01
2018-12-11T17:30:38Z
2018-12-11T17:30:38Z
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/10.1590/1517-869220162206158906
Revista Brasileira de Medicina do Esporte, v. 22, n. 6, p. 439-444, 2016.
1517-8692
http://hdl.handle.net/11449/178496
10.1590/1517-869220162206158906
S1517-86922016000600439
2-s2.0-85006364934
S1517-86922016000600439.pdf
url http://dx.doi.org/10.1590/1517-869220162206158906
http://hdl.handle.net/11449/178496
identifier_str_mv Revista Brasileira de Medicina do Esporte, v. 22, n. 6, p. 439-444, 2016.
1517-8692
10.1590/1517-869220162206158906
S1517-86922016000600439
2-s2.0-85006364934
S1517-86922016000600439.pdf
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Revista Brasileira de Medicina do Esporte
0,185
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eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 439-444
application/pdf
dc.source.none.fl_str_mv Scopus
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)
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