Agreement analysis between critical power and intensity corresponding to 50% in cycling exercise
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Cineantropometria & Desempenho Humano (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2016v18n2p197 |
Resumo: | The purpose of this study was to determine the level of agreement between critical power (CP) and intensity corresponding to 50% of the difference (50% Δ) between oxygen uptake (VO2) at lactate threshold (LT) and maximal oxygen uptake (VO2max) in untrained subjects during cycling exercise. Fifteen healthy male subjects (age: 26.0 ± 3.5 years; body weight: 76.6 ± 10.4 kg; height: 178.2 ± 7.6 cm) volunteered to participate in the study. Each subject performed a series of tests to determine LT, VO2LT, CP, VO2CP, 50% Δ, VO250% Δ, and VO2max. The values of LT, VO2LT, CP, VO2CP, 50% Δ, VO250% Δ and VO2max were 109 ± 15 W, 1.84 ± 0.23 L.min-1, 207 ± 17 W, 2.78 ± 0.27 L.min-1, 206 ± 19 W, 2.77 ± 0.29 L.min-1, and 3.71 ± 0.49 L.min-1, respectively. No significant difference was found between CP and 50% Δ (t = 0.16; p = 0.87) or between VO2CP and VO250% Δ (t = 0.12; p = 0.90). However, the bias ± 95% limits of agreement for comparison between CP and 50% Δ and between VO2CP and VO250% Δ were 1 ± 27 W (0.3 ± 14.1%) and 0.01 ± 0.24 L.min-1 (0.2 ± 8.9%), respectively. In summary, the mean CP and 50% Δ values were not significantly different. However, considering the limits of agreement between the two intensities, CP estimated based on 50% Δ might result in a remarkable error when the absolute variability of individual differences is taken into account |
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Agreement analysis between critical power and intensity corresponding to 50% in cycling exerciseAnálise de concordância entre a potência crítica e a intensidade correspondente ao 50% no exercício de ciclismoThe purpose of this study was to determine the level of agreement between critical power (CP) and intensity corresponding to 50% of the difference (50% Δ) between oxygen uptake (VO2) at lactate threshold (LT) and maximal oxygen uptake (VO2max) in untrained subjects during cycling exercise. Fifteen healthy male subjects (age: 26.0 ± 3.5 years; body weight: 76.6 ± 10.4 kg; height: 178.2 ± 7.6 cm) volunteered to participate in the study. Each subject performed a series of tests to determine LT, VO2LT, CP, VO2CP, 50% Δ, VO250% Δ, and VO2max. The values of LT, VO2LT, CP, VO2CP, 50% Δ, VO250% Δ and VO2max were 109 ± 15 W, 1.84 ± 0.23 L.min-1, 207 ± 17 W, 2.78 ± 0.27 L.min-1, 206 ± 19 W, 2.77 ± 0.29 L.min-1, and 3.71 ± 0.49 L.min-1, respectively. No significant difference was found between CP and 50% Δ (t = 0.16; p = 0.87) or between VO2CP and VO250% Δ (t = 0.12; p = 0.90). However, the bias ± 95% limits of agreement for comparison between CP and 50% Δ and between VO2CP and VO250% Δ were 1 ± 27 W (0.3 ± 14.1%) and 0.01 ± 0.24 L.min-1 (0.2 ± 8.9%), respectively. In summary, the mean CP and 50% Δ values were not significantly different. However, considering the limits of agreement between the two intensities, CP estimated based on 50% Δ might result in a remarkable error when the absolute variability of individual differences is taken into accountA proposta deste estudo foi determinar o nível de concordância entre a potência crítica (PC) e a intensidade correspondente a 50% da diferença (50% Δ) entre o consumo de oxigênio (VO2) no limiar de lactato (LL) e o consumo máximo de oxigênio (VO2max) em sujeitos não treinados durante o exercício de ciclismo. Quinze sujeitos saudáveis do sexo masculino (idade: 26,0 ± 3,5 anos; massa corporal: 76,6 ± 10,4 kg; estatura: 178,2 ± 7,6 cm) participaram deste estudo. Cada sujeito realizou uma série de testes para determinar o LL, VO2LL, PC, VO2PC, 50% Δ, VO250% Δ e VO2max. Os valores de LL, VO2LL, PC, VO2PC, 50% Δ, VO250% Δ e VO2max foram 109 ± 15 W, 1,84 ± 0,23 L.min-1, 207 ± 17 W, 2,78 ± 0,27 L.min-1, 206 ± 19 W, 2,77 ± 0,29 L.min-1 e 3,71 ± 0,49 L.min-1, respectivamente. Nenhuma diferença significativa foi encontrada entre a PC e o 50% Δ (t = 0.16; p = 0.87) e entre o VO2PC e o VO250% Δ (t = 0.12; p = 0.90). Entretanto, o bias ± 95% dos limites de concordância para as comparações entre a PC e o 50% Δ e entre o VO2PC e o VO250% Δ foram 1 ± 27 W (0,3 ± 14,1%) e 0,01 ± 0,24 L.min-1 (0,2 ± 8,9%), respectivamente. Em resumo, os valores médios de PC e 50% Δ não foram significativamente diferentes. No entanto, a PC estimada pelos 50% Δ pode resultar em um erro significativo quando a variabilidade individual absoluta é considerada.Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil2016-05-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion"Avaliado por Pares",Original paperAvaliado por ParesArtigos Originaisapplication/pdfhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2016v18n2p19710.1590/1980-0037.2016v18n2p197Brazilian Journal of Kinanthropometry and Human Performance; Vol. 18 No. 2 (2016); 197-206Revista Brasileira de Cineantropometria e Desempenho Humano; v. 18 n. 2 (2016); 197-2061980-00371415-8426reponame:Revista Brasileira de Cineantropometria & Desempenho Humano (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCenghttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2016v18n2p197/31807Copyright (c) 2016 Revista Brasileira de Cineantropometria e Desempenho Humanoinfo:eu-repo/semantics/openAccessSouza, Kristopher Mendes deLucas, Ricardo Dantas deSalvador, Paulo Cesar do NascimentoHelal, Lucas Crescenti Abdalla SaadGuglielmo, Luiz Guilherme AntonacciGreco, Camila CoelhoDenadai, Benedito Sérgio2018-12-05T09:35:38Zoai:periodicos.ufsc.br:article/41291Revistahttps://periodicos.ufsc.br/index.php/rbcdh/PUBhttps://periodicos.ufsc.br/index.php/rbcdh/oairbcdh@contato.ufsc.br || portaldeperiodicos.bu@contato.ufsc.br1980-00371415-8426opendoar:2018-12-05T09:35:38Revista Brasileira de Cineantropometria & Desempenho Humano (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Agreement analysis between critical power and intensity corresponding to 50% in cycling exercise Análise de concordância entre a potência crítica e a intensidade correspondente ao 50% no exercício de ciclismo |
title |
Agreement analysis between critical power and intensity corresponding to 50% in cycling exercise |
spellingShingle |
Agreement analysis between critical power and intensity corresponding to 50% in cycling exercise Souza, Kristopher Mendes de |
title_short |
Agreement analysis between critical power and intensity corresponding to 50% in cycling exercise |
title_full |
Agreement analysis between critical power and intensity corresponding to 50% in cycling exercise |
title_fullStr |
Agreement analysis between critical power and intensity corresponding to 50% in cycling exercise |
title_full_unstemmed |
Agreement analysis between critical power and intensity corresponding to 50% in cycling exercise |
title_sort |
Agreement analysis between critical power and intensity corresponding to 50% in cycling exercise |
author |
Souza, Kristopher Mendes de |
author_facet |
Souza, Kristopher Mendes de Lucas, Ricardo Dantas de Salvador, Paulo Cesar do Nascimento Helal, Lucas Crescenti Abdalla Saad Guglielmo, Luiz Guilherme Antonacci Greco, Camila Coelho Denadai, Benedito Sérgio |
author_role |
author |
author2 |
Lucas, Ricardo Dantas de Salvador, Paulo Cesar do Nascimento Helal, Lucas Crescenti Abdalla Saad Guglielmo, Luiz Guilherme Antonacci Greco, Camila Coelho Denadai, Benedito Sérgio |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Souza, Kristopher Mendes de Lucas, Ricardo Dantas de Salvador, Paulo Cesar do Nascimento Helal, Lucas Crescenti Abdalla Saad Guglielmo, Luiz Guilherme Antonacci Greco, Camila Coelho Denadai, Benedito Sérgio |
description |
The purpose of this study was to determine the level of agreement between critical power (CP) and intensity corresponding to 50% of the difference (50% Δ) between oxygen uptake (VO2) at lactate threshold (LT) and maximal oxygen uptake (VO2max) in untrained subjects during cycling exercise. Fifteen healthy male subjects (age: 26.0 ± 3.5 years; body weight: 76.6 ± 10.4 kg; height: 178.2 ± 7.6 cm) volunteered to participate in the study. Each subject performed a series of tests to determine LT, VO2LT, CP, VO2CP, 50% Δ, VO250% Δ, and VO2max. The values of LT, VO2LT, CP, VO2CP, 50% Δ, VO250% Δ and VO2max were 109 ± 15 W, 1.84 ± 0.23 L.min-1, 207 ± 17 W, 2.78 ± 0.27 L.min-1, 206 ± 19 W, 2.77 ± 0.29 L.min-1, and 3.71 ± 0.49 L.min-1, respectively. No significant difference was found between CP and 50% Δ (t = 0.16; p = 0.87) or between VO2CP and VO250% Δ (t = 0.12; p = 0.90). However, the bias ± 95% limits of agreement for comparison between CP and 50% Δ and between VO2CP and VO250% Δ were 1 ± 27 W (0.3 ± 14.1%) and 0.01 ± 0.24 L.min-1 (0.2 ± 8.9%), respectively. In summary, the mean CP and 50% Δ values were not significantly different. However, considering the limits of agreement between the two intensities, CP estimated based on 50% Δ might result in a remarkable error when the absolute variability of individual differences is taken into account |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-05-23 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion "Avaliado por Pares", Original paper Avaliado por Pares Artigos Originais |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2016v18n2p197 10.1590/1980-0037.2016v18n2p197 |
url |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2016v18n2p197 |
identifier_str_mv |
10.1590/1980-0037.2016v18n2p197 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2016v18n2p197/31807 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2016 Revista Brasileira de Cineantropometria e Desempenho Humano info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2016 Revista Brasileira de Cineantropometria e Desempenho Humano |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil |
publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil |
dc.source.none.fl_str_mv |
Brazilian Journal of Kinanthropometry and Human Performance; Vol. 18 No. 2 (2016); 197-206 Revista Brasileira de Cineantropometria e Desempenho Humano; v. 18 n. 2 (2016); 197-206 1980-0037 1415-8426 reponame:Revista Brasileira de Cineantropometria & Desempenho Humano (Online) instname:Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
instname_str |
Universidade Federal de Santa Catarina (UFSC) |
instacron_str |
UFSC |
institution |
UFSC |
reponame_str |
Revista Brasileira de Cineantropometria & Desempenho Humano (Online) |
collection |
Revista Brasileira de Cineantropometria & Desempenho Humano (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Cineantropometria & Desempenho Humano (Online) - Universidade Federal de Santa Catarina (UFSC) |
repository.mail.fl_str_mv |
rbcdh@contato.ufsc.br || portaldeperiodicos.bu@contato.ufsc.br |
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1789435124470775808 |