Comparison of two strategies for assessing critical walking velocity
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Revista Brasileira de Cineantropometria & Desempenho Humano (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n4p422 |
Resumo: | The aim of this study was to compare two strategies of walking test performance (self-paced intensity and fixed pace) for the determination of critical walking velocity (CWV) parameters. Fourteen female volunteers (age = 60.8 ± 10.3 years) were randomly submitted to three fixed-time walking tests (3, 6 and 9 minutes) and three fixed-pace tests ranging from 10 to 15 seconds at intervals of 20 meters. These predictive tests were used to calculate CWV. The mean standard error of the CWV estimate was 4.96% for the fixed-pace strategy, and 2.98% for the fixed-time strategy, corresponding to an adequate estimation. The results showed a high correlation between strategies (r=0.73; p < 0.01). The mean coefficient of determination was R2 = 0.98 ± 0.03 for the fixed-pace model and R2 = 0.99 ± 0.002 for the self-paced model. ANCOVA for the predictive tests showed no differences between strategies (p=0.29), subjects x strategies (p=0.29), or strategies x time (p=0.26). Geometric regression comparing the fixed-time x fixed-pace strategies (1.42 ± 0.14 and 1.38 ± 0.21 m/s) or the Bland-Altman method revealed no differences between performance strategies. We conclude that the two strategies were equivalent for the evaluation of performance in the sample studied. |
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Comparison of two strategies for assessing critical walking velocityComparação de duas estratégias de desempenho para avaliação da velocidade crítica de caminhadaThe aim of this study was to compare two strategies of walking test performance (self-paced intensity and fixed pace) for the determination of critical walking velocity (CWV) parameters. Fourteen female volunteers (age = 60.8 ± 10.3 years) were randomly submitted to three fixed-time walking tests (3, 6 and 9 minutes) and three fixed-pace tests ranging from 10 to 15 seconds at intervals of 20 meters. These predictive tests were used to calculate CWV. The mean standard error of the CWV estimate was 4.96% for the fixed-pace strategy, and 2.98% for the fixed-time strategy, corresponding to an adequate estimation. The results showed a high correlation between strategies (r=0.73; p < 0.01). The mean coefficient of determination was R2 = 0.98 ± 0.03 for the fixed-pace model and R2 = 0.99 ± 0.002 for the self-paced model. ANCOVA for the predictive tests showed no differences between strategies (p=0.29), subjects x strategies (p=0.29), or strategies x time (p=0.26). Geometric regression comparing the fixed-time x fixed-pace strategies (1.42 ± 0.14 and 1.38 ± 0.21 m/s) or the Bland-Altman method revealed no differences between performance strategies. We conclude that the two strategies were equivalent for the evaluation of performance in the sample studied.O objetivo deste estudo foi comparar duas estratégias de desempenho em testes de caminhada, tempo fixo com intensidade autoselecionada e ritmo fixo, na determinação dos parâmetros da Velocidade Crítica de Caminhada (VCC). Fizeram parte da amostra 14 voluntárias (idade = 60,8 ± 10,3 anos), submetidas aleatoriamente a três testes de caminhada de tempo fixo (3, 6, e 9 minutos) e três testes com intensidade fixa, que variaram entre 10 e 15 segundos a cada 20 metros. Estes testes preditivos foram utilizados para o cálculo da VCC. O erro padrão da estimativa da VCC apresentou valor médio de 4,96% na estra-tégia de ritmo fixo e 2,98% na estratégia de tempo fixo, o que representa boa estimativa deste parâmetro. Os resultados apontaram alta correlação entre as estratégias de coleta para a VCC (r=0,73; p < 0,01). A média dos coeficientes de determinação para o modelo de ritmo fixo foram R2 = 0,98 ± 0,03 e para tempo fixo R2 = 0,99 ± 0,002. Os resultados da ANCOVA para os testes preditivos demonstraram não haver diferença entre as estratégias de coleta (p=0,38), na comparação dos sujeitos x estratégias (p=0,29) e nas estratégias x tempo (p=0,26). A regressão geométrica, comparando as estratégias tempo fixo x ritmo fixo (1,42 ± 0,14 e 1,38 ± 0,21 m/s) também não apontou diferenças, assim como o método de Bland & Altman. Concluiu-se que as duas estratégias foram equivalentes na avaliação do desempenho na amostra estudada.Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion"Avaliado por Pares",Avaliado por ParesQuase Experimental.application/pdfapplication/pdfhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n4p42210.1590/1980-0037.2009v11n4p422Brazilian Journal of Kinanthropometry and Human Performance; Vol. 11 No. 4 (2009); 422Revista Brasileira de Cineantropometria e Desempenho Humano; v. 11 n. 4 (2009); 4221980-00371415-8426reponame:Revista Brasileira de Cineantropometria & Desempenho Humano (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n4p422/10903https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n4p422/16518Corrêa, Leandro QuadroRombaldi, Airton JoséBretanha Ribeiro, Paula AverKokubun, Eduardoinfo:eu-repo/semantics/openAccess2020-01-22T10:37:56Zoai:periodicos.ufsc.br:article/11369Revistahttps://periodicos.ufsc.br/index.php/rbcdh/PUBhttps://periodicos.ufsc.br/index.php/rbcdh/oairbcdh@contato.ufsc.br || portaldeperiodicos.bu@contato.ufsc.br1980-00371415-8426opendoar:2020-01-22T10:37:56Revista Brasileira de Cineantropometria & Desempenho Humano (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Comparison of two strategies for assessing critical walking velocity Comparação de duas estratégias de desempenho para avaliação da velocidade crítica de caminhada |
title |
Comparison of two strategies for assessing critical walking velocity |
spellingShingle |
Comparison of two strategies for assessing critical walking velocity Corrêa, Leandro Quadro |
title_short |
Comparison of two strategies for assessing critical walking velocity |
title_full |
Comparison of two strategies for assessing critical walking velocity |
title_fullStr |
Comparison of two strategies for assessing critical walking velocity |
title_full_unstemmed |
Comparison of two strategies for assessing critical walking velocity |
title_sort |
Comparison of two strategies for assessing critical walking velocity |
author |
Corrêa, Leandro Quadro |
author_facet |
Corrêa, Leandro Quadro Rombaldi, Airton José Bretanha Ribeiro, Paula Aver Kokubun, Eduardo |
author_role |
author |
author2 |
Rombaldi, Airton José Bretanha Ribeiro, Paula Aver Kokubun, Eduardo |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Corrêa, Leandro Quadro Rombaldi, Airton José Bretanha Ribeiro, Paula Aver Kokubun, Eduardo |
description |
The aim of this study was to compare two strategies of walking test performance (self-paced intensity and fixed pace) for the determination of critical walking velocity (CWV) parameters. Fourteen female volunteers (age = 60.8 ± 10.3 years) were randomly submitted to three fixed-time walking tests (3, 6 and 9 minutes) and three fixed-pace tests ranging from 10 to 15 seconds at intervals of 20 meters. These predictive tests were used to calculate CWV. The mean standard error of the CWV estimate was 4.96% for the fixed-pace strategy, and 2.98% for the fixed-time strategy, corresponding to an adequate estimation. The results showed a high correlation between strategies (r=0.73; p < 0.01). The mean coefficient of determination was R2 = 0.98 ± 0.03 for the fixed-pace model and R2 = 0.99 ± 0.002 for the self-paced model. ANCOVA for the predictive tests showed no differences between strategies (p=0.29), subjects x strategies (p=0.29), or strategies x time (p=0.26). Geometric regression comparing the fixed-time x fixed-pace strategies (1.42 ± 0.14 and 1.38 ± 0.21 m/s) or the Bland-Altman method revealed no differences between performance strategies. We conclude that the two strategies were equivalent for the evaluation of performance in the sample studied. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion "Avaliado por Pares", Avaliado por Pares Quase Experimental. |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n4p422 10.1590/1980-0037.2009v11n4p422 |
url |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n4p422 |
identifier_str_mv |
10.1590/1980-0037.2009v11n4p422 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n4p422/10903 https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2009v11n4p422/16518 |
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. 11 No. 4 (2009); 422 Revista Brasileira de Cineantropometria e Desempenho Humano; v. 11 n. 4 (2009); 422 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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1789435121772789760 |