Accuracy and reliability of a videogrammetry system in the analysis of displacement of Wistar rats
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/s1980-6574201700030006 http://hdl.handle.net/11449/157924 |
Resumo: | AbstractAims The behavior of laboratory animals has been studied through displacement, with different objectives by researchers.Methods Although different methods have already been used in the tracking of laboratory animals, manual tracking mode videogrammetry for 2D analysis of displacement has not been observed in animal studies. The aim of this study was to verify the accuracy and reliability of determining the displacement of Wistar rats by means of videogrammetry software Dvideo. The accuracy (between the known distance and distance traced) was determined by 3 different evaluators twice consecutive, by videoing a course of 10 meters in the enriched environment together with further analysis of the displacement of the midpoint marked on an apparatus. To calculate reliability (accuracy of the measurement system) and reproducibility (precision of the evaluators) to obtain the ratio of precision to tolerance (P/T), eight animals were filmed for 10 minutes in the enriched environment and analysis of distance covered by one of the animals by three different reviewers thrice consecutive.Results The results obtained in the course of 10 meters of the known distance demonstrated accuracy of 0.10 m, precision of 0.05 m, and bias of 0.07 m. In the reliability test during the 10 minutes of displacement (m) of animal, the ratio of precision to tolerance (P/T) = 0.1 m was found between three different evaluators, demonstrating adequate capacity of the measure.Conclusion The manual tracking mode of the Dvideo presented high reliability and it can be employed for the displacement analysis of studies with rat experimental models. |
id |
UNSP_dfc5845cd930cf40da6f44d19d9f2524 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/157924 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Accuracy and reliability of a videogrammetry system in the analysis of displacement of Wistar ratsdisplacementvideogrammetry2D analysisAbstractAims The behavior of laboratory animals has been studied through displacement, with different objectives by researchers.Methods Although different methods have already been used in the tracking of laboratory animals, manual tracking mode videogrammetry for 2D analysis of displacement has not been observed in animal studies. The aim of this study was to verify the accuracy and reliability of determining the displacement of Wistar rats by means of videogrammetry software Dvideo. The accuracy (between the known distance and distance traced) was determined by 3 different evaluators twice consecutive, by videoing a course of 10 meters in the enriched environment together with further analysis of the displacement of the midpoint marked on an apparatus. To calculate reliability (accuracy of the measurement system) and reproducibility (precision of the evaluators) to obtain the ratio of precision to tolerance (P/T), eight animals were filmed for 10 minutes in the enriched environment and analysis of distance covered by one of the animals by three different reviewers thrice consecutive.Results The results obtained in the course of 10 meters of the known distance demonstrated accuracy of 0.10 m, precision of 0.05 m, and bias of 0.07 m. In the reliability test during the 10 minutes of displacement (m) of animal, the ratio of precision to tolerance (P/T) = 0.1 m was found between three different evaluators, demonstrating adequate capacity of the measure.Conclusion The manual tracking mode of the Dvideo presented high reliability and it can be employed for the displacement analysis of studies with rat experimental models.Universidade Estadual Paulista Júlio de Mesquita FilhoUniversidade de São PauloCentro Universitário Católico Salesiano AuxiliumUniversidade Estadual PaulistaUniversidade Estadual Paulista Júlio de Mesquita FilhoUniversidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Centro Universitário Católico Salesiano AuxiliumSilva Junior, Osvaldo Tadeu DaSantiago, Paulo RobertoCuriacos, Jose Alexandre Almeida LemeSantos, Julio Wilson Dos2018-11-12T17:27:33Z2018-11-12T17:27:33Z2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article-application/pdfhttp://dx.doi.org/10.1590/s1980-6574201700030006Motriz: Revista de Educação Física. Universidade Estadual Paulista, v. 23, n. 3, p. -, 2017.1980-6574http://hdl.handle.net/11449/15792410.1590/s1980-6574201700030006S1980-65742017000300302S1980-65742017000300302.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMotriz: Revista de Educação Física0,254info:eu-repo/semantics/openAccess2023-10-03T06:04:07Zoai:repositorio.unesp.br:11449/157924Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:53:12.054291Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Accuracy and reliability of a videogrammetry system in the analysis of displacement of Wistar rats |
title |
Accuracy and reliability of a videogrammetry system in the analysis of displacement of Wistar rats |
spellingShingle |
Accuracy and reliability of a videogrammetry system in the analysis of displacement of Wistar rats Silva Junior, Osvaldo Tadeu Da displacement videogrammetry 2D analysis |
title_short |
Accuracy and reliability of a videogrammetry system in the analysis of displacement of Wistar rats |
title_full |
Accuracy and reliability of a videogrammetry system in the analysis of displacement of Wistar rats |
title_fullStr |
Accuracy and reliability of a videogrammetry system in the analysis of displacement of Wistar rats |
title_full_unstemmed |
Accuracy and reliability of a videogrammetry system in the analysis of displacement of Wistar rats |
title_sort |
Accuracy and reliability of a videogrammetry system in the analysis of displacement of Wistar rats |
author |
Silva Junior, Osvaldo Tadeu Da |
author_facet |
Silva Junior, Osvaldo Tadeu Da Santiago, Paulo Roberto Curiacos, Jose Alexandre Almeida Leme Santos, Julio Wilson Dos |
author_role |
author |
author2 |
Santiago, Paulo Roberto Curiacos, Jose Alexandre Almeida Leme Santos, Julio Wilson Dos |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) Centro Universitário Católico Salesiano Auxilium |
dc.contributor.author.fl_str_mv |
Silva Junior, Osvaldo Tadeu Da Santiago, Paulo Roberto Curiacos, Jose Alexandre Almeida Leme Santos, Julio Wilson Dos |
dc.subject.por.fl_str_mv |
displacement videogrammetry 2D analysis |
topic |
displacement videogrammetry 2D analysis |
description |
AbstractAims The behavior of laboratory animals has been studied through displacement, with different objectives by researchers.Methods Although different methods have already been used in the tracking of laboratory animals, manual tracking mode videogrammetry for 2D analysis of displacement has not been observed in animal studies. The aim of this study was to verify the accuracy and reliability of determining the displacement of Wistar rats by means of videogrammetry software Dvideo. The accuracy (between the known distance and distance traced) was determined by 3 different evaluators twice consecutive, by videoing a course of 10 meters in the enriched environment together with further analysis of the displacement of the midpoint marked on an apparatus. To calculate reliability (accuracy of the measurement system) and reproducibility (precision of the evaluators) to obtain the ratio of precision to tolerance (P/T), eight animals were filmed for 10 minutes in the enriched environment and analysis of distance covered by one of the animals by three different reviewers thrice consecutive.Results The results obtained in the course of 10 meters of the known distance demonstrated accuracy of 0.10 m, precision of 0.05 m, and bias of 0.07 m. In the reliability test during the 10 minutes of displacement (m) of animal, the ratio of precision to tolerance (P/T) = 0.1 m was found between three different evaluators, demonstrating adequate capacity of the measure.Conclusion The manual tracking mode of the Dvideo presented high reliability and it can be employed for the displacement analysis of studies with rat experimental models. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 2018-11-12T17:27:33Z 2018-11-12T17:27:33Z |
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/10.1590/s1980-6574201700030006 Motriz: Revista de Educação Física. Universidade Estadual Paulista, v. 23, n. 3, p. -, 2017. 1980-6574 http://hdl.handle.net/11449/157924 10.1590/s1980-6574201700030006 S1980-65742017000300302 S1980-65742017000300302.pdf |
url |
http://dx.doi.org/10.1590/s1980-6574201700030006 http://hdl.handle.net/11449/157924 |
identifier_str_mv |
Motriz: Revista de Educação Física. Universidade Estadual Paulista, v. 23, n. 3, p. -, 2017. 1980-6574 10.1590/s1980-6574201700030006 S1980-65742017000300302 S1980-65742017000300302.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Motriz: Revista de Educação Física 0,254 |
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 Estadual Paulista |
publisher.none.fl_str_mv |
Universidade Estadual Paulista |
dc.source.none.fl_str_mv |
SciELO 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_ |
1808128287120031744 |