Performance comparison of resistance-trained subjects by different methods of adjusting for body mass
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Revista Brasileira de Cineantropometria & Desempenho Humano (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2012v14n3p313 |
Resumo: | The aim of this study was to compare the performance (1RM) of resistance-trained subjects, using different methods of adjusting for body mass (BM): ratio standard, theoretical allometric exponent (0.67), and specific allometric exponents. The study included 11 male and 11 female healthy non-athletes (mean age = 22 years) engaged in regular resistance training for at least 6 months. Bench press (BP), 45° leg press (LP) and arm curl (AC) exercises were performed, and the participants were ranked (in descending order) according to each method. The specific allometric exponents for each exercise were: for men – BP (0.73), LP (0.35), and AC (0.71); and for women – BP (1.22), LP (1.02), and AC (0.85). The Kruskal-Wallis test revealed no differences between the rankings. However, visual inspection indicated that the participants were often classified differently in relation to performance by the methods used. Furthermore, no adjusted strength score was equal to the absolute strength values (1RM). The results suggest that there is a range of values in which the differences between exponents do not reflect different rankings (below 0.07 points) and a range in which rankings can be fundamentally different (above 0.14 points). This may be important in long-term selection of universally accepted allometric exponents, considering the range of values found in different studies. The standardization of exponents may allow the use of allometry as an additional tool in the prescription of resistance training. |
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Performance comparison of resistance-trained subjects by different methods of adjusting for body massComparação do desempenho de praticantes de exercícios resistidos por diferentes métodos de ajuste pela massa corporalThe aim of this study was to compare the performance (1RM) of resistance-trained subjects, using different methods of adjusting for body mass (BM): ratio standard, theoretical allometric exponent (0.67), and specific allometric exponents. The study included 11 male and 11 female healthy non-athletes (mean age = 22 years) engaged in regular resistance training for at least 6 months. Bench press (BP), 45° leg press (LP) and arm curl (AC) exercises were performed, and the participants were ranked (in descending order) according to each method. The specific allometric exponents for each exercise were: for men – BP (0.73), LP (0.35), and AC (0.71); and for women – BP (1.22), LP (1.02), and AC (0.85). The Kruskal-Wallis test revealed no differences between the rankings. However, visual inspection indicated that the participants were often classified differently in relation to performance by the methods used. Furthermore, no adjusted strength score was equal to the absolute strength values (1RM). The results suggest that there is a range of values in which the differences between exponents do not reflect different rankings (below 0.07 points) and a range in which rankings can be fundamentally different (above 0.14 points). This may be important in long-term selection of universally accepted allometric exponents, considering the range of values found in different studies. The standardization of exponents may allow the use of allometry as an additional tool in the prescription of resistance training.O objetivo do presente estudo foi comparar o desempenho (1RM) de praticantes de exercícios resistidos (ER), a partir de diferentes métodos de ajuste pela massa corporal (MC): ratio standard, expoente alométrico teórico (0,67) e expoentes alometricos específicos. Participaram do estudo 11 homens e 11 mulheres saudáveis, não-atletas, com media de idade de 22 anos, praticantes de ER ha pelo menos seis meses. Foram utilizados os exercícios supino reto (SR), leg press 45. (LP) e rosca direta (RD), sendo realizado um ranqueamento (classificação decrescente) dos indivíduos de acordo com cada método. Os expoentes alométricos específicos para cada exercício encontrados foram, para homens 0,73 (SR), 0,35 (LP) e 0,71 (RD) e para mulheres 1,22 (SR), LP 1,02 (LP) e 0,85 (RD). O teste de postos de Kruskal-Wallis não detectou diferença entre os ranqueamentos. No entanto, a inspeção visual indicou que os métodos quase sempre classificavam de maneira diferente os indivíduos em relação ao desempenho. Além disso, nenhum ranqueamento de forca corrigida foi igual ao da forca absoluta (1RM). Os resultados sugerem que ha uma faixa de valores na qual as diferenças entre os expoentes não refletem ranqueamentos distintos (abaixo de 0,07 pontos) e uma faixa em que os ranqueamentos podem ser essencialmente diferentes (acima de 0,14 pontos). Isso pode ser importante na seleção em longo prazo de expoentes alométricos que sejam universalmente aceitos, tendo em vista a variação dos valores apresentados em diferentes estudos. A padronização de expoentes pode permitir o uso da alometria como ferramenta adicional na prescrição do ER.Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil2012-04-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion"Avaliado por Pares",DescriptiveAvaliado por ParesExperimentalapplication/pdfapplication/pdfhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2012v14n3p31310.1590/1980-0037.2012v14n3p313Brazilian Journal of Kinanthropometry and Human Performance; Vol. 14 No. 3 (2012); 313-323Revista Brasileira de Cineantropometria e Desempenho Humano; v. 14 n. 3 (2012); 313-3231980-00371415-8426reponame:Revista Brasileira de Cineantropometria & Desempenho Humano (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCengporhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2012v14n3p313/21740https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2012v14n3p313/21741Külkamp, WladymirDias, Jonathan AcheDomenech, Susana CristinaBorges Jr, Noé GomesGevaerd, Monique da Silvainfo:eu-repo/semantics/openAccess2022-11-21T14:14:55Zoai:periodicos.ufsc.br:article/21085Revistahttps://periodicos.ufsc.br/index.php/rbcdh/PUBhttps://periodicos.ufsc.br/index.php/rbcdh/oairbcdh@contato.ufsc.br || portaldeperiodicos.bu@contato.ufsc.br1980-00371415-8426opendoar:2022-11-21T14:14:55Revista Brasileira de Cineantropometria & Desempenho Humano (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Performance comparison of resistance-trained subjects by different methods of adjusting for body mass Comparação do desempenho de praticantes de exercícios resistidos por diferentes métodos de ajuste pela massa corporal |
title |
Performance comparison of resistance-trained subjects by different methods of adjusting for body mass |
spellingShingle |
Performance comparison of resistance-trained subjects by different methods of adjusting for body mass Külkamp, Wladymir |
title_short |
Performance comparison of resistance-trained subjects by different methods of adjusting for body mass |
title_full |
Performance comparison of resistance-trained subjects by different methods of adjusting for body mass |
title_fullStr |
Performance comparison of resistance-trained subjects by different methods of adjusting for body mass |
title_full_unstemmed |
Performance comparison of resistance-trained subjects by different methods of adjusting for body mass |
title_sort |
Performance comparison of resistance-trained subjects by different methods of adjusting for body mass |
author |
Külkamp, Wladymir |
author_facet |
Külkamp, Wladymir Dias, Jonathan Ache Domenech, Susana Cristina Borges Jr, Noé Gomes Gevaerd, Monique da Silva |
author_role |
author |
author2 |
Dias, Jonathan Ache Domenech, Susana Cristina Borges Jr, Noé Gomes Gevaerd, Monique da Silva |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Külkamp, Wladymir Dias, Jonathan Ache Domenech, Susana Cristina Borges Jr, Noé Gomes Gevaerd, Monique da Silva |
description |
The aim of this study was to compare the performance (1RM) of resistance-trained subjects, using different methods of adjusting for body mass (BM): ratio standard, theoretical allometric exponent (0.67), and specific allometric exponents. The study included 11 male and 11 female healthy non-athletes (mean age = 22 years) engaged in regular resistance training for at least 6 months. Bench press (BP), 45° leg press (LP) and arm curl (AC) exercises were performed, and the participants were ranked (in descending order) according to each method. The specific allometric exponents for each exercise were: for men – BP (0.73), LP (0.35), and AC (0.71); and for women – BP (1.22), LP (1.02), and AC (0.85). The Kruskal-Wallis test revealed no differences between the rankings. However, visual inspection indicated that the participants were often classified differently in relation to performance by the methods used. Furthermore, no adjusted strength score was equal to the absolute strength values (1RM). The results suggest that there is a range of values in which the differences between exponents do not reflect different rankings (below 0.07 points) and a range in which rankings can be fundamentally different (above 0.14 points). This may be important in long-term selection of universally accepted allometric exponents, considering the range of values found in different studies. The standardization of exponents may allow the use of allometry as an additional tool in the prescription of resistance training. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-04-30 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion "Avaliado por Pares", Descriptive Avaliado por Pares Experimental |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2012v14n3p313 10.1590/1980-0037.2012v14n3p313 |
url |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2012v14n3p313 |
identifier_str_mv |
10.1590/1980-0037.2012v14n3p313 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2012v14n3p313/21740 https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2012v14n3p313/21741 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf 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. 14 No. 3 (2012); 313-323 Revista Brasileira de Cineantropometria e Desempenho Humano; v. 14 n. 3 (2012); 313-323 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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1789435122825560064 |