Resistance properties of elastic tubing commonly used in rehabilitation and sports training and the effects of previous cyclic loading-unloading.

dc.contributor.authorPaula, Leandro Vinhas de
dc.contributor.authorCoelho, Emerson Filipino
dc.contributor.authorFerreira, Renato Melo
dc.contributor.authorOliveira, Emerson Cruz de
dc.contributor.authorWerneck, Francisco Zacaron
dc.contributor.authorAraújo, Cleudmar Amaral de
dc.date.accessioned2018-04-11T12:23:09Z
dc.date.available2018-04-11T12:23:09Z
dc.date.issued2017
dc.description.abstractElastic tubes have been widely used as an external variable resistance in protocols of rehabilitation and sports training. The aim of this study was to evaluate the resistance and effect of fatigue (stiffness reduction) after repeated stretching (cycling) of latex elastic tubing (LET) and natural rubber elastic tubing (NRET). The samples were submitted to axial traction tests at 0, 1000, and 3000 loading-unloading cycles. Each of the respective cycling values consisted of six samples. The loading-unloading cycle reached a 100% maximum strain from the initial length and 1800 mm/min displacement rate; after each test, the samples were loaded monotonically (500 mm/min) to 300% of strain and the force response recorded. The results obtained in this study are similar to the resistance values obtained at 0 cycles reported by the NRET manufacturer (84N vs. 80N), but they do not confirm the report that the “silver” tubing retains the ability to offer resistance after cycling of the elastic tubing for strains of 100% (p = .001), 200% (p = .021), and 250% (p = .002). The LET and NRET showed loss capacity for offering similar resistance (9.5 – 15.5% vs. 9.9 – 15.2%, respectively).pt_BR
dc.description.abstractenOs tubos elásticos têm sido amplamente utilizados como resistência externa variável em protocolos de reabilitação e treinamento desportivo. O objetivo deste estudo foi avaliar a resistência e feito da fadiga (redução da rigidez) após estiramentos repetidos de tubos elásticos de látex (TEL) e tubos elásticos de borracha natural (TEBN). As amostras foram submetidas a testes de tração axial em 0, 1000 e 3000 ciclos de carga – descarga. Cada respectivo valor de ciclagem consistiu de 6 amostras. Os ciclos de carga – descarga alcançaram uma deformação máxima de 100% do comprimento inicial e taxa de deslocamento de 1800 mm/min; após cada teste, as amostras foram carregadas monotonicamente (500 mm/min) até 300% de deformação e registrada a resposta de força. Os resultados obtidos neste estudo são similares aos valores de resistência obtidos a 0 ciclos reportados pelo fabricante TEBN (84N vs. 80N), mas eles não confirmação a informação de que os tubos “prata” mantém a capacidade de oferecer resistência após o ciclagem dos tubos elásticos para as deformações de 100% (p = 0.001), 200% (p = 0.021), e 250% (p = 0.002) do comprimento inicial. Os TEL e TEBN mostraram uma perda da capacidade em oferecer resistência semelhante (9.5 – 15.5% vs. 9.9 – 15.2%, respectivamente).pt_BR
dc.identifier.citationPAULA, L. V. de et al. Resistance properties of elastic tubing commonly used in rehabilitation and sports training and the effects of previous cyclic loading-unloading. Revista Portuguesa de Ciências do Desporto, v. 17, p. 13-27, 2017. Disponível em: <http://www.fade.up.pt/rpcd/_arquivo/artigos_soltos/2017-S4A/01.pdf>. Acesso em: 05 abr. 2018.pt_BR
dc.identifier.issn16450523
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/9842
dc.identifier.uri2http://www.fade.up.pt/rpcd/_arquivo/artigos_soltos/2017-S4A/01.pdfpt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectBiomechanicspt_BR
dc.subjectSports trainingpt_BR
dc.subjectElastic resistancept_BR
dc.subjectNatural rubber elastic tubingpt_BR
dc.titleResistance properties of elastic tubing commonly used in rehabilitation and sports training and the effects of previous cyclic loading-unloading.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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