Noncircular chainrings and pedal to crank interface in cycling: a literature review.

Detalhes bibliográficos
Autor(a) principal: Bini, Rodrigo Rico
Data de Publicação: 2012
Outros Autores: Dagnese, Frederico
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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spelling 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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