Analysis of acceleration time of ankle in long-distance runners and triathletes

Detalhes bibliográficos
Autor(a) principal: Luna,Natália Mariana Silva
Data de Publicação: 2017
Outros Autores: Alonso,Angélica Castilho, Bocalini,Danilo, Borin,Gabriela, Brech,Guilherme Carlos, Greve,Júlia Maria D'Andréa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: MedicalExpress (São Paulo. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2358-04292017000400004
Resumo: INTRODUCTION: Adequate muscle reaction time is essential for protecting the joints against injuries during sports activities. This phenomenon of time of acceleration has been investigated through methodologies such as trapdoor experiments and electromyography. However, isokinetic analysis is an assessment method that is more dynamic and shows behavior closer to the functionality of the sport. Sports that involve running, such as long distance running and triathlon, have high lower-limb injury rates, particularly in relation to the ankle joint. The objective of this study was to evaluate and compare isokinetic acceleration and deceleration times of the dorsiflexor and plantar flexor musculature of the ankle in long-distance runners, triathletes and non-athletic individuals. METHOD: The sample comprised 75 individuals (men aged 18-42 years), divided into three groups: triathlete group, long-distance runner group and control group. The individuals were tested bilaterally on an isokinetic dynamometer. The evaluation modes used were (i) concentric/eccentric for plantar flexion and dorsiflexion, and (ii) eccentric/concentric for plantar flexion and dorsiflexion. We used (a) analysis of variance and Tukey's post hoc test; (b) Kruskal-Wallis and Müller-Dunn post hoc tsts; (c) Chi-square tests. RESULTS: The acceleration time during concentric contraction was statistically different only between the control group and the long-distance runner group, such that the controls presented faster acceleraton. CONCLUSION: This may signify a deficiency in their motor sensory control during concentric activity of the dorsiflexors.
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spelling Analysis of acceleration time of ankle in long-distance runners and triathletesIsokineticRunningTriathlon INTRODUCTION: Adequate muscle reaction time is essential for protecting the joints against injuries during sports activities. This phenomenon of time of acceleration has been investigated through methodologies such as trapdoor experiments and electromyography. However, isokinetic analysis is an assessment method that is more dynamic and shows behavior closer to the functionality of the sport. Sports that involve running, such as long distance running and triathlon, have high lower-limb injury rates, particularly in relation to the ankle joint. The objective of this study was to evaluate and compare isokinetic acceleration and deceleration times of the dorsiflexor and plantar flexor musculature of the ankle in long-distance runners, triathletes and non-athletic individuals. METHOD: The sample comprised 75 individuals (men aged 18-42 years), divided into three groups: triathlete group, long-distance runner group and control group. The individuals were tested bilaterally on an isokinetic dynamometer. The evaluation modes used were (i) concentric/eccentric for plantar flexion and dorsiflexion, and (ii) eccentric/concentric for plantar flexion and dorsiflexion. We used (a) analysis of variance and Tukey's post hoc test; (b) Kruskal-Wallis and Müller-Dunn post hoc tsts; (c) Chi-square tests. RESULTS: The acceleration time during concentric contraction was statistically different only between the control group and the long-distance runner group, such that the controls presented faster acceleraton. CONCLUSION: This may signify a deficiency in their motor sensory control during concentric activity of the dorsiflexors.Mavera Edições Técnicas e Científicas Ltda2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2358-04292017000400004MedicalExpress v.4 n.4 2017reponame:MedicalExpress (São Paulo. Online)instname:Mavera Edições Científicas e Técnicas Ltda-MEinstacron:METC10.5935/medicalexpress.2017.04.04info:eu-repo/semantics/openAccessLuna,Natália Mariana SilvaAlonso,Angélica CastilhoBocalini,DaniloBorin,GabrielaBrech,Guilherme CarlosGreve,Júlia Maria D'Andréaeng2017-09-12T00:00:00Zoai:scielo:S2358-04292017000400004Revistahttp://www.medicalexpress.net.brhttps://old.scielo.br/oai/scielo-oai.php||medicalexpress@me.net.br2358-04292318-8111opendoar:2017-09-12T00:00MedicalExpress (São Paulo. Online) - Mavera Edições Científicas e Técnicas Ltda-MEfalse
dc.title.none.fl_str_mv Analysis of acceleration time of ankle in long-distance runners and triathletes
title Analysis of acceleration time of ankle in long-distance runners and triathletes
spellingShingle Analysis of acceleration time of ankle in long-distance runners and triathletes
Luna,Natália Mariana Silva
Isokinetic
Running
Triathlon
title_short Analysis of acceleration time of ankle in long-distance runners and triathletes
title_full Analysis of acceleration time of ankle in long-distance runners and triathletes
title_fullStr Analysis of acceleration time of ankle in long-distance runners and triathletes
title_full_unstemmed Analysis of acceleration time of ankle in long-distance runners and triathletes
title_sort Analysis of acceleration time of ankle in long-distance runners and triathletes
author Luna,Natália Mariana Silva
author_facet Luna,Natália Mariana Silva
Alonso,Angélica Castilho
Bocalini,Danilo
Borin,Gabriela
Brech,Guilherme Carlos
Greve,Júlia Maria D'Andréa
author_role author
author2 Alonso,Angélica Castilho
Bocalini,Danilo
Borin,Gabriela
Brech,Guilherme Carlos
Greve,Júlia Maria D'Andréa
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Luna,Natália Mariana Silva
Alonso,Angélica Castilho
Bocalini,Danilo
Borin,Gabriela
Brech,Guilherme Carlos
Greve,Júlia Maria D'Andréa
dc.subject.por.fl_str_mv Isokinetic
Running
Triathlon
topic Isokinetic
Running
Triathlon
description INTRODUCTION: Adequate muscle reaction time is essential for protecting the joints against injuries during sports activities. This phenomenon of time of acceleration has been investigated through methodologies such as trapdoor experiments and electromyography. However, isokinetic analysis is an assessment method that is more dynamic and shows behavior closer to the functionality of the sport. Sports that involve running, such as long distance running and triathlon, have high lower-limb injury rates, particularly in relation to the ankle joint. The objective of this study was to evaluate and compare isokinetic acceleration and deceleration times of the dorsiflexor and plantar flexor musculature of the ankle in long-distance runners, triathletes and non-athletic individuals. METHOD: The sample comprised 75 individuals (men aged 18-42 years), divided into three groups: triathlete group, long-distance runner group and control group. The individuals were tested bilaterally on an isokinetic dynamometer. The evaluation modes used were (i) concentric/eccentric for plantar flexion and dorsiflexion, and (ii) eccentric/concentric for plantar flexion and dorsiflexion. We used (a) analysis of variance and Tukey's post hoc test; (b) Kruskal-Wallis and Müller-Dunn post hoc tsts; (c) Chi-square tests. RESULTS: The acceleration time during concentric contraction was statistically different only between the control group and the long-distance runner group, such that the controls presented faster acceleraton. CONCLUSION: This may signify a deficiency in their motor sensory control during concentric activity of the dorsiflexors.
publishDate 2017
dc.date.none.fl_str_mv 2017-08-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2358-04292017000400004
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/medicalexpress.2017.04.04
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Mavera Edições Técnicas e Científicas Ltda
publisher.none.fl_str_mv Mavera Edições Técnicas e Científicas Ltda
dc.source.none.fl_str_mv MedicalExpress v.4 n.4 2017
reponame:MedicalExpress (São Paulo. Online)
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reponame_str MedicalExpress (São Paulo. Online)
collection MedicalExpress (São Paulo. Online)
repository.name.fl_str_mv MedicalExpress (São Paulo. Online) - Mavera Edições Científicas e Técnicas Ltda-ME
repository.mail.fl_str_mv ||medicalexpress@me.net.br
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