Gait energy consumption and gait efficiency with two different models of prosthetics knees: a single case report
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://doi.org/10.25758/set.424 |
Resumo: | Background – Prosthetic components have a crucial role in the energy efficiency of an amputee’s gait. This is an area of knowledge still in development, where research plays a central role. Objective – The purpose of this case study is to compare the impact on energy consumption of two prosthetic knees, a titanium single-axis constant friction knee joint with internal extension assist, 3R34 (A), and a single-axis pneumatic swing phase control, 3R92 (B). Methodology – The participant was a transtibial amputee, male, with 27 years old, with no other clinical or functional impairments. To measure the energy expenditure a submaximal treadmill (H/P/Cosmos(R) Mercury) exercise stress test combined with a breath-by-breath analysis system (Cosmed Quark PFT Ergo) was used. The same test was applied to both knees, separated by two days. The analyzed variables were O2 consumption (VO2), metabolic equivalent (MET), and gait efficiency (VO2 ratio expected from a healthy individual and the studied individual). A rate of perceived exertion (Borg’s Scale) was used. Results – The results were favorable to knee A (24.2 ml O2/kg/min; 6.9 MET, 43% efficiency) compared with knee B (28.68 ml O2/kg/min; 8.2 MET, 39% efficiency). Conclusion – In this case, a less energy consumption gait corresponds to the prosthesis with knee A. These values may be influenced by the short adaptation period with knee B, so it’s necessary to perform more studies to confirm the previous results and to understand the true impact of the correct adaptation factor to the best prosthetics components for different patients. |
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Gait energy consumption and gait efficiency with two different models of prosthetics knees: a single case reportConsumo energético e eficiência da marcha com dois modelos de joelhos protésicos: estudo de casoConsumo de oxigénio (VO2)Joelhos mecânicosAmputação transfemuralConsumo energéticoEficiência energéticaO2 consumption (VO2)Mechanical prosthetic kneeTransfemural amputationEnergy expenditureGait efficiencyBackground – Prosthetic components have a crucial role in the energy efficiency of an amputee’s gait. This is an area of knowledge still in development, where research plays a central role. Objective – The purpose of this case study is to compare the impact on energy consumption of two prosthetic knees, a titanium single-axis constant friction knee joint with internal extension assist, 3R34 (A), and a single-axis pneumatic swing phase control, 3R92 (B). Methodology – The participant was a transtibial amputee, male, with 27 years old, with no other clinical or functional impairments. To measure the energy expenditure a submaximal treadmill (H/P/Cosmos(R) Mercury) exercise stress test combined with a breath-by-breath analysis system (Cosmed Quark PFT Ergo) was used. The same test was applied to both knees, separated by two days. The analyzed variables were O2 consumption (VO2), metabolic equivalent (MET), and gait efficiency (VO2 ratio expected from a healthy individual and the studied individual). A rate of perceived exertion (Borg’s Scale) was used. Results – The results were favorable to knee A (24.2 ml O2/kg/min; 6.9 MET, 43% efficiency) compared with knee B (28.68 ml O2/kg/min; 8.2 MET, 39% efficiency). Conclusion – In this case, a less energy consumption gait corresponds to the prosthesis with knee A. These values may be influenced by the short adaptation period with knee B, so it’s necessary to perform more studies to confirm the previous results and to understand the true impact of the correct adaptation factor to the best prosthetics components for different patients.Introdução – Os componentes protésicos têm um papel fundamental na eficiência energética da marcha dos indivíduos amputados. Esta é uma área de conhecimento ainda em desenvolvimento, onde a investigação desempenha um papel central. Objectivos – Comparar e analisar o efeito de dois joelhos protésicos, 3R34, monocêntrico modular, de fricção constante, com auxiliar de extensão incorporado (A) e 3R92, monocêntrico modular, com travão de fricção e controlo pneumático da fase de balanço (B) no consumo energético e eficiência da marcha. Metodologia – Um indivíduo do sexo masculino de 27 anos, com amputação transfemural longa, foi sujeito a um protocolo submáximo de avaliação da resposta ao exercício em passadeira rolante (H/P/Cosmos(R) Mercury), através de um sistema de análise de gases breath-by-breath (Cosmed Quark PFT Ergo). Foi efetuado o mesmo protocolo com intervalo de dois dias, primeiro utilizando o joelho A e depois o B. As variáveis analisadas foram o consumo de O2 (VO2), o equivalente metabólico (MET) e a eficiência energética da marcha (Quociente de VO2 esperado de um individuo saudável e o VO2 do individuo em estudo). O esforço percecionado foi medido com a escala RPE de Borg. Resultados – O consumo energético com o joelho A (24,2 ml O2/kg/min; 6,9 MET) foi inferior ao obtido com o joelho B (28,68 ml O2/kg/min; 8,2 MET). A eficiência energética da marcha foi mais elevada para o joelho A (43%) do que para o joelho B (39%). Conclusão – A utilização do joelho A na prótese do indivíduo em estudo resulta numa marcha de menor consumo energético e maior eficiência. No entanto, este valor poderá estar influenciado pelo curto período de adaptação ao joelho B, sendo necessários mais estudos para confirmar os resultados do estudo e a influência deste fator.Escola Superior de Tecnologia da Saúde de Lisboa (Instituto Politécnico de Lisboa)2011-11-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://doi.org/10.25758/set.424oai:journals.ipl.pt:article/699Saúde e Tecnologia; No. 06 (2011): Novembro 2011; 38-43Saúde & Tecnologia; N.º 06 (2011): Novembro 2011; 38-431646-9704reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPporhttps://journals.ipl.pt/stecnologia/article/view/699https://doi.org/10.25758/set.424https://journals.ipl.pt/stecnologia/article/view/699/598Direitos de Autor (c) 2022 Saúde & Tecnologiainfo:eu-repo/semantics/openAccessSá, CatarinaCruz, JoanaNascimento, RafaelSilva, José MaurícioTomás, Maria Teresa2022-12-20T10:59:20Zoai:journals.ipl.pt:article/699Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:21:30.185849Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Gait energy consumption and gait efficiency with two different models of prosthetics knees: a single case report Consumo energético e eficiência da marcha com dois modelos de joelhos protésicos: estudo de caso |
title |
Gait energy consumption and gait efficiency with two different models of prosthetics knees: a single case report |
spellingShingle |
Gait energy consumption and gait efficiency with two different models of prosthetics knees: a single case report Sá, Catarina Consumo de oxigénio (VO2) Joelhos mecânicos Amputação transfemural Consumo energético Eficiência energética O2 consumption (VO2) Mechanical prosthetic knee Transfemural amputation Energy expenditure Gait efficiency |
title_short |
Gait energy consumption and gait efficiency with two different models of prosthetics knees: a single case report |
title_full |
Gait energy consumption and gait efficiency with two different models of prosthetics knees: a single case report |
title_fullStr |
Gait energy consumption and gait efficiency with two different models of prosthetics knees: a single case report |
title_full_unstemmed |
Gait energy consumption and gait efficiency with two different models of prosthetics knees: a single case report |
title_sort |
Gait energy consumption and gait efficiency with two different models of prosthetics knees: a single case report |
author |
Sá, Catarina |
author_facet |
Sá, Catarina Cruz, Joana Nascimento, Rafael Silva, José Maurício Tomás, Maria Teresa |
author_role |
author |
author2 |
Cruz, Joana Nascimento, Rafael Silva, José Maurício Tomás, Maria Teresa |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Sá, Catarina Cruz, Joana Nascimento, Rafael Silva, José Maurício Tomás, Maria Teresa |
dc.subject.por.fl_str_mv |
Consumo de oxigénio (VO2) Joelhos mecânicos Amputação transfemural Consumo energético Eficiência energética O2 consumption (VO2) Mechanical prosthetic knee Transfemural amputation Energy expenditure Gait efficiency |
topic |
Consumo de oxigénio (VO2) Joelhos mecânicos Amputação transfemural Consumo energético Eficiência energética O2 consumption (VO2) Mechanical prosthetic knee Transfemural amputation Energy expenditure Gait efficiency |
description |
Background – Prosthetic components have a crucial role in the energy efficiency of an amputee’s gait. This is an area of knowledge still in development, where research plays a central role. Objective – The purpose of this case study is to compare the impact on energy consumption of two prosthetic knees, a titanium single-axis constant friction knee joint with internal extension assist, 3R34 (A), and a single-axis pneumatic swing phase control, 3R92 (B). Methodology – The participant was a transtibial amputee, male, with 27 years old, with no other clinical or functional impairments. To measure the energy expenditure a submaximal treadmill (H/P/Cosmos(R) Mercury) exercise stress test combined with a breath-by-breath analysis system (Cosmed Quark PFT Ergo) was used. The same test was applied to both knees, separated by two days. The analyzed variables were O2 consumption (VO2), metabolic equivalent (MET), and gait efficiency (VO2 ratio expected from a healthy individual and the studied individual). A rate of perceived exertion (Borg’s Scale) was used. Results – The results were favorable to knee A (24.2 ml O2/kg/min; 6.9 MET, 43% efficiency) compared with knee B (28.68 ml O2/kg/min; 8.2 MET, 39% efficiency). Conclusion – In this case, a less energy consumption gait corresponds to the prosthesis with knee A. These values may be influenced by the short adaptation period with knee B, so it’s necessary to perform more studies to confirm the previous results and to understand the true impact of the correct adaptation factor to the best prosthetics components for different patients. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-11-15 |
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 |
https://doi.org/10.25758/set.424 oai:journals.ipl.pt:article/699 |
url |
https://doi.org/10.25758/set.424 |
identifier_str_mv |
oai:journals.ipl.pt:article/699 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://journals.ipl.pt/stecnologia/article/view/699 https://doi.org/10.25758/set.424 https://journals.ipl.pt/stecnologia/article/view/699/598 |
dc.rights.driver.fl_str_mv |
Direitos de Autor (c) 2022 Saúde & Tecnologia info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Direitos de Autor (c) 2022 Saúde & Tecnologia |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Escola Superior de Tecnologia da Saúde de Lisboa (Instituto Politécnico de Lisboa) |
publisher.none.fl_str_mv |
Escola Superior de Tecnologia da Saúde de Lisboa (Instituto Politécnico de Lisboa) |
dc.source.none.fl_str_mv |
Saúde e Tecnologia; No. 06 (2011): Novembro 2011; 38-43 Saúde & Tecnologia; N.º 06 (2011): Novembro 2011; 38-43 1646-9704 reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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