Analysis of acceleration time of ankle in long-distance runners and triathletes
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
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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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 |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2358-04292017000400004 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2358-04292017000400004 |
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) instname:Mavera Edições Científicas e Técnicas Ltda-ME instacron:METC |
instname_str |
Mavera Edições Científicas e Técnicas Ltda-ME |
instacron_str |
METC |
institution |
METC |
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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1754734597128585216 |