Cinemática e desempenho muscular do tronco e a atividade de sentado para de pé em indivíduos pós-acidente vascular encefálico e saudáveis

Detalhes bibliográficos
Autor(a) principal: Paula Fernanda de Sousa Silva
Data de Publicação: 2014
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Repositório Institucional da UFMG
Texto Completo: http://hdl.handle.net/1843/BUOS-9JTG28
Resumo: Subjects with stroke commonly present trunk structures and functions impairments, as well as limitations for sit-to-stand (STS) movement. In healthy subjects, the biomechanics of this activity is commonly characterized by variables related to trunk kinematics and to trunk muscle performance. However, in subjects with stroke, the investigation of these variables and their relation with the STS performance have not been adequately clarified. In this context, the purposes of the present study were: a) to compare STS performance, kinematic variables and trunk muscle performance between subjects with stroke and matched healthy subjects; and b) to investigate if there is a relationship between STS movement and the kinematic variables and trunk muscle performance in these subjects. Eighteen subjects in the chronic phase of stroke (13 men and five women, 59.78 ± 2.34 years of age), and 18 healthy matching subjects regarding age, gender, body mass index, and physical activity levels were assessed. The measurements used to assess the STS performance were: five-repetition sit-to-stand test (clinical measurement) and total duration of the STS as well as of Phases I and II of the STS, at self-selected and fast speeds (laboratory measurement, motion analysis system). The kinematic variables of the trunk, during the STS, were also obtained (motion analysis system): maximum forward flexion, peak of the flexion momentum and instant of the STS in which this occurred. The muscle performance of flexors/extensors of the trunk was clinically characterized in the laboratory by the peak torque and total work normalized by the trunk mass variables (isokinetic dynamometer, range of motion of 65º of flexion-extension of the trunk; three series of three repetitions at 60º/s). To compare groups, the students independent samples T-test was used. In order to investigate the correlations in the total sample (n=36), the Pearson Correlation Coefficient was used (=0,05). Compared to the matched healthy subjects, the subjects with stroke showed, predominantly, worse clinical (p<0.001) and laboratory (p0.022) performance in the STS, lower peak flexor momentum of the trunk (p<0.001), and lower values in all variables of muscular performance (p0.001). Predominantly, significant correlations were verified between the clinical and laboratorial performance in the STS, with the maximum trunk forward flexion (0.001p0.028;0.37r0.54), peak trunk flexor momentum (p0.001;0.58r0.71), peak torque and total work normalized by the trunk mass of the trunks flexors/extensors (p0.022; 0.39r0.63). Therefore, subjects present a worse STS performance and worse biomechanical characteristics and trunk muscle performance, when compared to matched healthy subjects. These variables present significant correlations to each other, indicating that such worse STS performance might be related to the difficulties that subjects with stroke have to generate/transfer the flexor momentum, as well as their worse trunk muscle performance. Evaluations/interventions meant to improve the performance of these subjects in the STS must consider the trunk structures and functions.
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spelling Cinemática e desempenho muscular do tronco e a atividade de sentado para de pé em indivíduos pós-acidente vascular encefálico e saudáveisAcidente Vascular EncefálicoBiomecânicaAtividades de vida diáriaAnálise do troncoDesempenhoBiomecânicaAtividades cotidianasAcidentes vasculares cerebraisCinemáticaTronco encefálicoSubjects with stroke commonly present trunk structures and functions impairments, as well as limitations for sit-to-stand (STS) movement. In healthy subjects, the biomechanics of this activity is commonly characterized by variables related to trunk kinematics and to trunk muscle performance. However, in subjects with stroke, the investigation of these variables and their relation with the STS performance have not been adequately clarified. In this context, the purposes of the present study were: a) to compare STS performance, kinematic variables and trunk muscle performance between subjects with stroke and matched healthy subjects; and b) to investigate if there is a relationship between STS movement and the kinematic variables and trunk muscle performance in these subjects. Eighteen subjects in the chronic phase of stroke (13 men and five women, 59.78 ± 2.34 years of age), and 18 healthy matching subjects regarding age, gender, body mass index, and physical activity levels were assessed. The measurements used to assess the STS performance were: five-repetition sit-to-stand test (clinical measurement) and total duration of the STS as well as of Phases I and II of the STS, at self-selected and fast speeds (laboratory measurement, motion analysis system). The kinematic variables of the trunk, during the STS, were also obtained (motion analysis system): maximum forward flexion, peak of the flexion momentum and instant of the STS in which this occurred. The muscle performance of flexors/extensors of the trunk was clinically characterized in the laboratory by the peak torque and total work normalized by the trunk mass variables (isokinetic dynamometer, range of motion of 65º of flexion-extension of the trunk; three series of three repetitions at 60º/s). To compare groups, the students independent samples T-test was used. In order to investigate the correlations in the total sample (n=36), the Pearson Correlation Coefficient was used (=0,05). Compared to the matched healthy subjects, the subjects with stroke showed, predominantly, worse clinical (p<0.001) and laboratory (p0.022) performance in the STS, lower peak flexor momentum of the trunk (p<0.001), and lower values in all variables of muscular performance (p0.001). Predominantly, significant correlations were verified between the clinical and laboratorial performance in the STS, with the maximum trunk forward flexion (0.001p0.028;0.37r0.54), peak trunk flexor momentum (p0.001;0.58r0.71), peak torque and total work normalized by the trunk mass of the trunks flexors/extensors (p0.022; 0.39r0.63). Therefore, subjects present a worse STS performance and worse biomechanical characteristics and trunk muscle performance, when compared to matched healthy subjects. These variables present significant correlations to each other, indicating that such worse STS performance might be related to the difficulties that subjects with stroke have to generate/transfer the flexor momentum, as well as their worse trunk muscle performance. Evaluations/interventions meant to improve the performance of these subjects in the STS must consider the trunk structures and functions.Indivíduos acometidos por Acidente Vascular Encefálico (AVE) comumente apresentam deficiências em estruturas e funções do tronco e limitações no sentado para de pé (ST-DP). Em indivíduos saudáveis, a biomecânica desta atividade é comumente caracterizada pela cinemática e desempenho muscular do tronco. Entretanto, na população pós-AVE, a investigação destas variáveis e suas relações com o desempenho no ST-DP ainda não foram adequadamente exploradas. Assim, os objetivos do presente estudo foram a) comparar o desempenho no ST-DP, variáveis cinemáticas e de desempenho muscular do tronco entre indivíduos pós-AVE e saudáveis; e b) investigar se há relação entre o desempenho no ST-DP e as variáveis cinemáticas e de desempenho muscular do tronco nestes indivíduos. Foram avaliados 18 indivíduos pós-AVE (13 homens e cinco mulheres (59,78±2,34 anos de idade)) e 18 indivíduos saudáveis pareados quanto à idade, sexo, índice de massa corpórea e nível de atividade física. Como medida clínica de desempenho no ST-DP, foi utilizado o resultado do Teste de cinco repetições de levantar/sentar em cadeira (média de três repetições). Como medidas laboratoriais de desempenho no ST-DP, foram utilizadas: duração total e duração das Fases I e II do ST-DP, determinadas com o sistema de análise de movimento (média de três repetições). Do mesmo modo, foram obtidas as variáveis cinemáticas do tronco no ST-DP: máxima flexão anterior, pico do momentum flexor e instante do ST-DP em que este ocorreu. O desempenho muscular de flexores/extensores do tronco foi caracterizado laboratorialmente pelas variáveis pico de torque e trabalho total normalizado pela massa do tronco obtidas com o dinamômetro isocinético (amplitude de 65º; três séries de três repetições a 60º/s). Para a comparação entre grupos, foi utilizado o teste-t de Student para amostras independentes. Para a investigação das correlações na amostra total (n=36), foi utilizado o Coeficiente de Correlação de Pearson (=0,05). Em comparação aos indivíduos saudáveis, os indivíduos pós-AVE apresentaram, predominantemente, pior desempenho clínico (p<0,001) e laboratorial (p0,022) no ST-DP, maior valor de máxima flexão anterior do tronco (p=0,036) e menores valores de pico do momentum flexor do tronco (p<0,001) e em todas as variáveis de desempenho muscular (p0,001). Foram verificadas, predominantemente, correlações significativas entre o desempenho no ST-DP com o máximo ângulo de flexão anterior (0,001p0,028;0,37r0,54), pico do momentum flexor (p0,001;-0,58r0,71) e pico de torque e trabalho total normalizado pela massa do tronco de flexores/extensores do tronco (p0,022;-0,38r0,63). Portanto, indivíduos pós-AVE apresentaram pior desempenho no ST-DP, alterações cinemáticas do tronco no plano sagital e pior desempenho muscular do tronco em relação a indivíduos saudáveis. Estas variáveis se correlacionaram significativamente, indicando que este pior desempenho no ST-DP pode ter relação com as dificuldades destes indivíduos na geração/transferência do momentum flexor e ao seu pior desempenho muscular do tronco. Avaliações/intervenções direcionadas para melhorar o desempenho no ST-DP de indivíduos pós-AVE devem considerar as suas deficiências do tronco.Universidade Federal de Minas GeraisUFMGChristina Danielli Coelho de Morais FariaAline Alvim ScianniPriscila Albuquerque de AraujoLuci Fuscaldi Teixeira SalmelaPaula Fernanda de Sousa Silva2019-08-13T05:31:08Z2019-08-13T05:31:08Z2014-02-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/1843/BUOS-9JTG28info:eu-repo/semantics/openAccessporreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMG2019-11-15T00:21:45Zoai:repositorio.ufmg.br:1843/BUOS-9JTG28Repositório InstitucionalPUBhttps://repositorio.ufmg.br/oairepositorio@ufmg.bropendoar:2019-11-15T00:21:45Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false
dc.title.none.fl_str_mv Cinemática e desempenho muscular do tronco e a atividade de sentado para de pé em indivíduos pós-acidente vascular encefálico e saudáveis
title Cinemática e desempenho muscular do tronco e a atividade de sentado para de pé em indivíduos pós-acidente vascular encefálico e saudáveis
spellingShingle Cinemática e desempenho muscular do tronco e a atividade de sentado para de pé em indivíduos pós-acidente vascular encefálico e saudáveis
Paula Fernanda de Sousa Silva
Acidente Vascular Encefálico
Biomecânica
Atividades de vida diária
Análise do tronco
Desempenho
Biomecânica
Atividades cotidianas
Acidentes vasculares cerebrais
Cinemática
Tronco encefálico
title_short Cinemática e desempenho muscular do tronco e a atividade de sentado para de pé em indivíduos pós-acidente vascular encefálico e saudáveis
title_full Cinemática e desempenho muscular do tronco e a atividade de sentado para de pé em indivíduos pós-acidente vascular encefálico e saudáveis
title_fullStr Cinemática e desempenho muscular do tronco e a atividade de sentado para de pé em indivíduos pós-acidente vascular encefálico e saudáveis
title_full_unstemmed Cinemática e desempenho muscular do tronco e a atividade de sentado para de pé em indivíduos pós-acidente vascular encefálico e saudáveis
title_sort Cinemática e desempenho muscular do tronco e a atividade de sentado para de pé em indivíduos pós-acidente vascular encefálico e saudáveis
author Paula Fernanda de Sousa Silva
author_facet Paula Fernanda de Sousa Silva
author_role author
dc.contributor.none.fl_str_mv Christina Danielli Coelho de Morais Faria
Aline Alvim Scianni
Priscila Albuquerque de Araujo
Luci Fuscaldi Teixeira Salmela
dc.contributor.author.fl_str_mv Paula Fernanda de Sousa Silva
dc.subject.por.fl_str_mv Acidente Vascular Encefálico
Biomecânica
Atividades de vida diária
Análise do tronco
Desempenho
Biomecânica
Atividades cotidianas
Acidentes vasculares cerebrais
Cinemática
Tronco encefálico
topic Acidente Vascular Encefálico
Biomecânica
Atividades de vida diária
Análise do tronco
Desempenho
Biomecânica
Atividades cotidianas
Acidentes vasculares cerebrais
Cinemática
Tronco encefálico
description Subjects with stroke commonly present trunk structures and functions impairments, as well as limitations for sit-to-stand (STS) movement. In healthy subjects, the biomechanics of this activity is commonly characterized by variables related to trunk kinematics and to trunk muscle performance. However, in subjects with stroke, the investigation of these variables and their relation with the STS performance have not been adequately clarified. In this context, the purposes of the present study were: a) to compare STS performance, kinematic variables and trunk muscle performance between subjects with stroke and matched healthy subjects; and b) to investigate if there is a relationship between STS movement and the kinematic variables and trunk muscle performance in these subjects. Eighteen subjects in the chronic phase of stroke (13 men and five women, 59.78 ± 2.34 years of age), and 18 healthy matching subjects regarding age, gender, body mass index, and physical activity levels were assessed. The measurements used to assess the STS performance were: five-repetition sit-to-stand test (clinical measurement) and total duration of the STS as well as of Phases I and II of the STS, at self-selected and fast speeds (laboratory measurement, motion analysis system). The kinematic variables of the trunk, during the STS, were also obtained (motion analysis system): maximum forward flexion, peak of the flexion momentum and instant of the STS in which this occurred. The muscle performance of flexors/extensors of the trunk was clinically characterized in the laboratory by the peak torque and total work normalized by the trunk mass variables (isokinetic dynamometer, range of motion of 65º of flexion-extension of the trunk; three series of three repetitions at 60º/s). To compare groups, the students independent samples T-test was used. In order to investigate the correlations in the total sample (n=36), the Pearson Correlation Coefficient was used (=0,05). Compared to the matched healthy subjects, the subjects with stroke showed, predominantly, worse clinical (p<0.001) and laboratory (p0.022) performance in the STS, lower peak flexor momentum of the trunk (p<0.001), and lower values in all variables of muscular performance (p0.001). Predominantly, significant correlations were verified between the clinical and laboratorial performance in the STS, with the maximum trunk forward flexion (0.001p0.028;0.37r0.54), peak trunk flexor momentum (p0.001;0.58r0.71), peak torque and total work normalized by the trunk mass of the trunks flexors/extensors (p0.022; 0.39r0.63). Therefore, subjects present a worse STS performance and worse biomechanical characteristics and trunk muscle performance, when compared to matched healthy subjects. These variables present significant correlations to each other, indicating that such worse STS performance might be related to the difficulties that subjects with stroke have to generate/transfer the flexor momentum, as well as their worse trunk muscle performance. Evaluations/interventions meant to improve the performance of these subjects in the STS must consider the trunk structures and functions.
publishDate 2014
dc.date.none.fl_str_mv 2014-02-06
2019-08-13T05:31:08Z
2019-08-13T05:31:08Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1843/BUOS-9JTG28
url http://hdl.handle.net/1843/BUOS-9JTG28
dc.language.iso.fl_str_mv por
language por
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 Minas Gerais
UFMG
publisher.none.fl_str_mv Universidade Federal de Minas Gerais
UFMG
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFMG
instname:Universidade Federal de Minas Gerais (UFMG)
instacron:UFMG
instname_str Universidade Federal de Minas Gerais (UFMG)
instacron_str UFMG
institution UFMG
reponame_str Repositório Institucional da UFMG
collection Repositório Institucional da UFMG
repository.name.fl_str_mv Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)
repository.mail.fl_str_mv repositorio@ufmg.br
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