Noncircular chainrings and pedal to crank interface in cycling: a literature review.
Autor(a) principal: | |
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Data de Publicação: | 2012 |
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/1980-0037.2012v14n4p470 |
Resumo: | Noncircular chainrings and novel pedal to crank interfaces have been designed to optimize variables related to cycling performance (e.g. peak crank torque and efficiency), with conflicting results in terms of performance. Therefore, the aim of the present article was to review the theoretical background of noncircular chainrings and novel pedal to crank interfaces and their effects on biomechanical, physiological and performance variables. Reducing internal work, crank peak torque, and time spent at the top and bottom dead centres (12 o’clock and 6 o’clock positions, respectively) were among the various targets of noncircular chainrings and novel pedal to crank interface design. Changes in joint kinematics without effects on muscle activation were observed when cyclists were assessed using noncircular chainrings and novel pedal to crank interfaces. Conflicting results for economy/efficiency explain the unclear effects of noncircular chainrings on cycling performance and the positive effects of some novel pedal to crank interfaces on cycling economy/efficiency. |
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Revista Brasileira de Cineantropometria & Desempenho Humano (Online) |
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Noncircular chainrings and pedal to crank interface in cycling: a literature review.Sistemas de pedivela não-circulares e interfaces pedal-pedivela no ciclismo: uma revisão da literatura.Noncircular chainrings and novel pedal to crank interfaces have been designed to optimize variables related to cycling performance (e.g. peak crank torque and efficiency), with conflicting results in terms of performance. Therefore, the aim of the present article was to review the theoretical background of noncircular chainrings and novel pedal to crank interfaces and their effects on biomechanical, physiological and performance variables. Reducing internal work, crank peak torque, and time spent at the top and bottom dead centres (12 o’clock and 6 o’clock positions, respectively) were among the various targets of noncircular chainrings and novel pedal to crank interface design. Changes in joint kinematics without effects on muscle activation were observed when cyclists were assessed using noncircular chainrings and novel pedal to crank interfaces. Conflicting results for economy/efficiency explain the unclear effects of noncircular chainrings on cycling performance and the positive effects of some novel pedal to crank interfaces on cycling economy/efficiency.Sistemas de coroas não circulares e novas interfaces entre o pedal e o pedivela vem sendo propostas com o objetivo de otimizar variáveis relacionadas com o desempenho no ciclismo (e.g. pico de torque e eficiência) com resultados conflitantes acerca do desempenho. Nesta perspectiva, o objetivo desta revisão foi abordar aspectos teóricos do uso de sistemas de pedivela não circulares e novas interfaces entre o pedal e o pedivela e seus efeitos em variáveis biomecânicas, fisiológicas e do desempenho. A redução do trabalho interno, pico de torque no pedivela e tempo decorrido nos pontos mortos (posições de 12 horas e 6 horas) estiveram entre as variáveis utilizadas para otimizar o desenho de sistemas de pedivela não circulares e novas interfaces entre o pedal e o pedivela. Alterações na cinemática foram observadas sem mudanças na ativação dos músculos dos membros inferiores de ciclistas utilizando sistemas de pesdivela não-circulares e novas interfaces entre o pedal e o pedivela. Resultados conflitantes foram observados na economia/eficiência indicando benefícios pouco claros do uso de sistemas de pedivela não circulares e resultados positivos do uso de novas interfaces entre o pedal e o pedivela na economia/eficiência.Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil2012-06-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion"Avaliado por Pares","Artigo Solicitado"Systematic Review"Avaliado por Pares", "Artigo Solicitado"Pesquisa sitemáticaapplication/pdfhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2012v14n4p47010.1590/1980-0037.2012v14n4p470Brazilian Journal of Kinanthropometry and Human Performance; Vol. 14 No. 4 (2012); 470-482Revista Brasileira de Cineantropometria e Desempenho Humano; v. 14 n. 4 (2012); 470-4821980-00371415-8426reponame:Revista Brasileira de Cineantropometria & Desempenho Humano (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCenghttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2012v14n4p470/22178Bini, Rodrigo RicoDagnese, Fredericoinfo:eu-repo/semantics/openAccess2022-11-21T14:14:55Zoai:periodicos.ufsc.br:article/20965Revistahttps://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 |
Noncircular chainrings and pedal to crank interface in cycling: a literature review. Sistemas de pedivela não-circulares e interfaces pedal-pedivela no ciclismo: uma revisão da literatura. |
title |
Noncircular chainrings and pedal to crank interface in cycling: a literature review. |
spellingShingle |
Noncircular chainrings and pedal to crank interface in cycling: a literature review. Bini, Rodrigo Rico |
title_short |
Noncircular chainrings and pedal to crank interface in cycling: a literature review. |
title_full |
Noncircular chainrings and pedal to crank interface in cycling: a literature review. |
title_fullStr |
Noncircular chainrings and pedal to crank interface in cycling: a literature review. |
title_full_unstemmed |
Noncircular chainrings and pedal to crank interface in cycling: a literature review. |
title_sort |
Noncircular chainrings and pedal to crank interface in cycling: a literature review. |
author |
Bini, Rodrigo Rico |
author_facet |
Bini, Rodrigo Rico Dagnese, Frederico |
author_role |
author |
author2 |
Dagnese, Frederico |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Bini, Rodrigo Rico Dagnese, Frederico |
description |
Noncircular chainrings and novel pedal to crank interfaces have been designed to optimize variables related to cycling performance (e.g. peak crank torque and efficiency), with conflicting results in terms of performance. Therefore, the aim of the present article was to review the theoretical background of noncircular chainrings and novel pedal to crank interfaces and their effects on biomechanical, physiological and performance variables. Reducing internal work, crank peak torque, and time spent at the top and bottom dead centres (12 o’clock and 6 o’clock positions, respectively) were among the various targets of noncircular chainrings and novel pedal to crank interface design. Changes in joint kinematics without effects on muscle activation were observed when cyclists were assessed using noncircular chainrings and novel pedal to crank interfaces. Conflicting results for economy/efficiency explain the unclear effects of noncircular chainrings on cycling performance and the positive effects of some novel pedal to crank interfaces on cycling economy/efficiency. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-06-20 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion "Avaliado por Pares","Artigo Solicitado" Systematic Review "Avaliado por Pares", "Artigo Solicitado" Pesquisa sitemática |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2012v14n4p470 10.1590/1980-0037.2012v14n4p470 |
url |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2012v14n4p470 |
identifier_str_mv |
10.1590/1980-0037.2012v14n4p470 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2012v14n4p470/22178 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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. 14 No. 4 (2012); 470-482 Revista Brasileira de Cineantropometria e Desempenho Humano; v. 14 n. 4 (2012); 470-482 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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1789435122818220032 |