Morphometric study for estimation and validation of trunk transverse surface area to assess human drag force on water.
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10314/3280 |
Resumo: | The aim of this study was to compute and validate estimation equations for the trunk transverse surface area (TTSA) to be used in assessing the swimmer's drag force in both genders. One group of 133 swimmers (56 females, 77 males) was used to compute the estimation equations and another group of 131 swimmers (56 females, 75 males) was used for its validations. Swimmers were photographed in the transverse plane from above, on land, in the upright and hydrodynamic position. The TTSA was measured from the swimmer's photo with specific software. Also measured was the height, body mass, biacromial diameter, chest sagital diameter (CSD) and the chest perimeter (CP). With the first group of swimmers, it was computed the TTSA estimation equations based on stepwise multiple regression models from the selected anthropometrical variables. For males TTSA=6.662*CP+17.019*CSD-210.708 (R(2)=0.32; Ra (2)=0.30; P<0.01) and for females TTSA=7.002*CP+15.382*CSD-255.70 (R(2)=0.34; Ra (2)=0.31; P<0.01). For both genders there were no significant differences between assessed and estimated mean TTSA. Coefficients of determination for the linear regression models between assessed and estimated TTSA were R(2)=0.39 for males and R(2)=0.55 for females. More than 80% of the plots were within the 95% interval confidence for the Bland-Altman analysis in both genders. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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spelling |
Morphometric study for estimation and validation of trunk transverse surface area to assess human drag force on water.The aim of this study was to compute and validate estimation equations for the trunk transverse surface area (TTSA) to be used in assessing the swimmer's drag force in both genders. One group of 133 swimmers (56 females, 77 males) was used to compute the estimation equations and another group of 131 swimmers (56 females, 75 males) was used for its validations. Swimmers were photographed in the transverse plane from above, on land, in the upright and hydrodynamic position. The TTSA was measured from the swimmer's photo with specific software. Also measured was the height, body mass, biacromial diameter, chest sagital diameter (CSD) and the chest perimeter (CP). With the first group of swimmers, it was computed the TTSA estimation equations based on stepwise multiple regression models from the selected anthropometrical variables. For males TTSA=6.662*CP+17.019*CSD-210.708 (R(2)=0.32; Ra (2)=0.30; P<0.01) and for females TTSA=7.002*CP+15.382*CSD-255.70 (R(2)=0.34; Ra (2)=0.31; P<0.01). For both genders there were no significant differences between assessed and estimated mean TTSA. Coefficients of determination for the linear regression models between assessed and estimated TTSA were R(2)=0.39 for males and R(2)=0.55 for females. More than 80% of the plots were within the 95% interval confidence for the Bland-Altman analysis in both genders.Polish Academy of Sciences2016-11-19T20:13:43Z2016-11-192011-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10314/3280http://hdl.handle.net/10314/3280engMORAIS JE, COSTA MJ, MEJIAS JE, MARINHO DA, SILVA AJ, BARBOSA TM (2011) Morphometric study for estimation and validation of trunk transverse surface area to assess human drag force on water. Journal of Human Kinetics, 28: 5-13.Morais, JorgeCosta, MárioMejias, JeanMarinho, DanielSilva, AntónioBarbosa, Tiagoinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-14T02:56:43Zoai:bdigital.ipg.pt:10314/3280Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:42:37.098857Repositório 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 |
Morphometric study for estimation and validation of trunk transverse surface area to assess human drag force on water. |
title |
Morphometric study for estimation and validation of trunk transverse surface area to assess human drag force on water. |
spellingShingle |
Morphometric study for estimation and validation of trunk transverse surface area to assess human drag force on water. Morais, Jorge |
title_short |
Morphometric study for estimation and validation of trunk transverse surface area to assess human drag force on water. |
title_full |
Morphometric study for estimation and validation of trunk transverse surface area to assess human drag force on water. |
title_fullStr |
Morphometric study for estimation and validation of trunk transverse surface area to assess human drag force on water. |
title_full_unstemmed |
Morphometric study for estimation and validation of trunk transverse surface area to assess human drag force on water. |
title_sort |
Morphometric study for estimation and validation of trunk transverse surface area to assess human drag force on water. |
author |
Morais, Jorge |
author_facet |
Morais, Jorge Costa, Mário Mejias, Jean Marinho, Daniel Silva, António Barbosa, Tiago |
author_role |
author |
author2 |
Costa, Mário Mejias, Jean Marinho, Daniel Silva, António Barbosa, Tiago |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Morais, Jorge Costa, Mário Mejias, Jean Marinho, Daniel Silva, António Barbosa, Tiago |
description |
The aim of this study was to compute and validate estimation equations for the trunk transverse surface area (TTSA) to be used in assessing the swimmer's drag force in both genders. One group of 133 swimmers (56 females, 77 males) was used to compute the estimation equations and another group of 131 swimmers (56 females, 75 males) was used for its validations. Swimmers were photographed in the transverse plane from above, on land, in the upright and hydrodynamic position. The TTSA was measured from the swimmer's photo with specific software. Also measured was the height, body mass, biacromial diameter, chest sagital diameter (CSD) and the chest perimeter (CP). With the first group of swimmers, it was computed the TTSA estimation equations based on stepwise multiple regression models from the selected anthropometrical variables. For males TTSA=6.662*CP+17.019*CSD-210.708 (R(2)=0.32; Ra (2)=0.30; P<0.01) and for females TTSA=7.002*CP+15.382*CSD-255.70 (R(2)=0.34; Ra (2)=0.31; P<0.01). For both genders there were no significant differences between assessed and estimated mean TTSA. Coefficients of determination for the linear regression models between assessed and estimated TTSA were R(2)=0.39 for males and R(2)=0.55 for females. More than 80% of the plots were within the 95% interval confidence for the Bland-Altman analysis in both genders. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01T00:00:00Z 2016-11-19T20:13:43Z 2016-11-19 |
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://hdl.handle.net/10314/3280 http://hdl.handle.net/10314/3280 |
url |
http://hdl.handle.net/10314/3280 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
MORAIS JE, COSTA MJ, MEJIAS JE, MARINHO DA, SILVA AJ, BARBOSA TM (2011) Morphometric study for estimation and validation of trunk transverse surface area to assess human drag force on water. Journal of Human Kinetics, 28: 5-13. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Polish Academy of Sciences |
publisher.none.fl_str_mv |
Polish Academy of Sciences |
dc.source.none.fl_str_mv |
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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1799136919134666752 |