Knee flexor strength and rate of torque development deficits in women with patellofemoral pain are related to poor objective function
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.gaitpost.2020.10.011 http://hdl.handle.net/11449/205362 |
Resumo: | Background: Deficits in knee flexor strength and rate of torque development (RTD) might be present in women with patellofemoral pain (PFP). In addition, maximal strength and RTD of the knee flexors and extensors might be related with subjective and objective function in women with PFP. However, both conjectures are still poorly understood. Research question: Do women with PFP have deficits in the maximal strength and RTD of the knee flexors and extensors during isometric, concentric, and eccentric contractions? Is there a relationship between maximal strength and RTD of the knee flexors and extensors with subjective and objective function in women with PFP? Methods: Fifty-six women with, and 46 women without, PFP participated. Maximal strength and RTD (to 30% and 60% maximal torque) during isometric, concentric, and eccentric contractions of the knee flexors and extensors were assessed using an isokinetic dynamometer. Objective assessment included single leg hop test (SLHT) and forward step-down test (FSDT). Subjective assessment involved the anterior knee pain scale. Results: Women with PFP had small to large deficits in maximal strength and RTD of the knee flexors and extensors during isometric, concentric and eccentric contractions (Effect sizes: -0.43 to -1.10; p ≤ 0.016). Small to moderate correlations of maximal concentric and eccentric knee flexor strength and RTD with SLHT and FSDT (r = 0.28 to 0.41; p ≤ 0.037) were identified. Subjective or objective function were not correlated with maximal isometric knee flexor strength and RTD, or any knee extensor measures (p > 0.05). Significance: Maximal strength and RTD deficits of the knee flexors and extensors were identified in this female PFP cohort, but they were unrelated to subjective function. The relationship of concentric and eccentric knee flexor strength and RTD deficits with poor objective function should be considered in future exercise trials for women with PFP. |
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Knee flexor strength and rate of torque development deficits in women with patellofemoral pain are related to poor objective functionAnterior knee painassessmenthamstringrate of force developmentrehabilitationBackground: Deficits in knee flexor strength and rate of torque development (RTD) might be present in women with patellofemoral pain (PFP). In addition, maximal strength and RTD of the knee flexors and extensors might be related with subjective and objective function in women with PFP. However, both conjectures are still poorly understood. Research question: Do women with PFP have deficits in the maximal strength and RTD of the knee flexors and extensors during isometric, concentric, and eccentric contractions? Is there a relationship between maximal strength and RTD of the knee flexors and extensors with subjective and objective function in women with PFP? Methods: Fifty-six women with, and 46 women without, PFP participated. Maximal strength and RTD (to 30% and 60% maximal torque) during isometric, concentric, and eccentric contractions of the knee flexors and extensors were assessed using an isokinetic dynamometer. Objective assessment included single leg hop test (SLHT) and forward step-down test (FSDT). Subjective assessment involved the anterior knee pain scale. Results: Women with PFP had small to large deficits in maximal strength and RTD of the knee flexors and extensors during isometric, concentric and eccentric contractions (Effect sizes: -0.43 to -1.10; p ≤ 0.016). Small to moderate correlations of maximal concentric and eccentric knee flexor strength and RTD with SLHT and FSDT (r = 0.28 to 0.41; p ≤ 0.037) were identified. Subjective or objective function were not correlated with maximal isometric knee flexor strength and RTD, or any knee extensor measures (p > 0.05). Significance: Maximal strength and RTD deficits of the knee flexors and extensors were identified in this female PFP cohort, but they were unrelated to subjective function. The relationship of concentric and eccentric knee flexor strength and RTD deficits with poor objective function should be considered in future exercise trials for women with PFP.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Laboratory of Biomechanics and Motor Control (LABCOM) School of Science and Technology Sao Paulo State University (UNESP)La Trobe Sport and Exercise Medicine Research Centre (LASEM) School of Allied Health Human Services and Sport La Trobe UniversityDepartment of Surgery St Vincent's Hospital University of MelbourneLaboratory of Biomechanics and Motor Control (LABCOM) School of Science and Technology Sao Paulo State University (UNESP)Universidade Estadual Paulista (Unesp)La Trobe UniversityUniversity of MelbourneBriani, Ronaldo V. [UNESP]de Oliveira Silva, DaniloDucatti, Matheus H.M. [UNESP]Lopes, Helder S. [UNESP]Ferreira, Amanda S. [UNESP]Mentiplay, Benjamin F.de Azevedo, Fábio M. [UNESP]Barton, Christian J.2021-06-25T10:14:03Z2021-06-25T10:14:03Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article100-106http://dx.doi.org/10.1016/j.gaitpost.2020.10.011Gait and Posture, v. 83, p. 100-106.1879-22190966-6362http://hdl.handle.net/11449/20536210.1016/j.gaitpost.2020.10.0112-s2.0-85093674183Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGait and Postureinfo:eu-repo/semantics/openAccess2021-10-23T12:39:38Zoai:repositorio.unesp.br:11449/205362Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:48:36.471842Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Knee flexor strength and rate of torque development deficits in women with patellofemoral pain are related to poor objective function |
title |
Knee flexor strength and rate of torque development deficits in women with patellofemoral pain are related to poor objective function |
spellingShingle |
Knee flexor strength and rate of torque development deficits in women with patellofemoral pain are related to poor objective function Briani, Ronaldo V. [UNESP] Anterior knee pain assessment hamstring rate of force development rehabilitation |
title_short |
Knee flexor strength and rate of torque development deficits in women with patellofemoral pain are related to poor objective function |
title_full |
Knee flexor strength and rate of torque development deficits in women with patellofemoral pain are related to poor objective function |
title_fullStr |
Knee flexor strength and rate of torque development deficits in women with patellofemoral pain are related to poor objective function |
title_full_unstemmed |
Knee flexor strength and rate of torque development deficits in women with patellofemoral pain are related to poor objective function |
title_sort |
Knee flexor strength and rate of torque development deficits in women with patellofemoral pain are related to poor objective function |
author |
Briani, Ronaldo V. [UNESP] |
author_facet |
Briani, Ronaldo V. [UNESP] de Oliveira Silva, Danilo Ducatti, Matheus H.M. [UNESP] Lopes, Helder S. [UNESP] Ferreira, Amanda S. [UNESP] Mentiplay, Benjamin F. de Azevedo, Fábio M. [UNESP] Barton, Christian J. |
author_role |
author |
author2 |
de Oliveira Silva, Danilo Ducatti, Matheus H.M. [UNESP] Lopes, Helder S. [UNESP] Ferreira, Amanda S. [UNESP] Mentiplay, Benjamin F. de Azevedo, Fábio M. [UNESP] Barton, Christian J. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) La Trobe University University of Melbourne |
dc.contributor.author.fl_str_mv |
Briani, Ronaldo V. [UNESP] de Oliveira Silva, Danilo Ducatti, Matheus H.M. [UNESP] Lopes, Helder S. [UNESP] Ferreira, Amanda S. [UNESP] Mentiplay, Benjamin F. de Azevedo, Fábio M. [UNESP] Barton, Christian J. |
dc.subject.por.fl_str_mv |
Anterior knee pain assessment hamstring rate of force development rehabilitation |
topic |
Anterior knee pain assessment hamstring rate of force development rehabilitation |
description |
Background: Deficits in knee flexor strength and rate of torque development (RTD) might be present in women with patellofemoral pain (PFP). In addition, maximal strength and RTD of the knee flexors and extensors might be related with subjective and objective function in women with PFP. However, both conjectures are still poorly understood. Research question: Do women with PFP have deficits in the maximal strength and RTD of the knee flexors and extensors during isometric, concentric, and eccentric contractions? Is there a relationship between maximal strength and RTD of the knee flexors and extensors with subjective and objective function in women with PFP? Methods: Fifty-six women with, and 46 women without, PFP participated. Maximal strength and RTD (to 30% and 60% maximal torque) during isometric, concentric, and eccentric contractions of the knee flexors and extensors were assessed using an isokinetic dynamometer. Objective assessment included single leg hop test (SLHT) and forward step-down test (FSDT). Subjective assessment involved the anterior knee pain scale. Results: Women with PFP had small to large deficits in maximal strength and RTD of the knee flexors and extensors during isometric, concentric and eccentric contractions (Effect sizes: -0.43 to -1.10; p ≤ 0.016). Small to moderate correlations of maximal concentric and eccentric knee flexor strength and RTD with SLHT and FSDT (r = 0.28 to 0.41; p ≤ 0.037) were identified. Subjective or objective function were not correlated with maximal isometric knee flexor strength and RTD, or any knee extensor measures (p > 0.05). Significance: Maximal strength and RTD deficits of the knee flexors and extensors were identified in this female PFP cohort, but they were unrelated to subjective function. The relationship of concentric and eccentric knee flexor strength and RTD deficits with poor objective function should be considered in future exercise trials for women with PFP. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T10:14:03Z 2021-06-25T10:14:03Z 2021-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.gaitpost.2020.10.011 Gait and Posture, v. 83, p. 100-106. 1879-2219 0966-6362 http://hdl.handle.net/11449/205362 10.1016/j.gaitpost.2020.10.011 2-s2.0-85093674183 |
url |
http://dx.doi.org/10.1016/j.gaitpost.2020.10.011 http://hdl.handle.net/11449/205362 |
identifier_str_mv |
Gait and Posture, v. 83, p. 100-106. 1879-2219 0966-6362 10.1016/j.gaitpost.2020.10.011 2-s2.0-85093674183 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Gait and Posture |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
100-106 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129464433901568 |