Effect of caffeine and cognitive tests on cerebral hemodynamic in young students from the Dr. Lopes Dias Superior Health School
Autor(a) principal: | |
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Data de Publicação: | 2022 |
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.489 |
Resumo: | Introduction – Caffeine induces physiological changes, such as increased blood pressure, which is reflected in cerebral hemodynamics. Objectives – Evaluate the effect of caffeine on changes in the flow of the cerebral arteries studied, as well as relate their effect with cognitive tests. Methods – Observational, prospective study in 35 students, aged between 18 and 25, at Escola Superior de Saude Dr. Lopes Dias. The volunteers were divided into two groups, with group 1 having a normal coffee and group 2 being a white brand decaffeinated, without added sugar. The procedure was divided into two phases, pre- and post-stimulant. Data were collected through the transcranial color-coded duplex sonography and the MoCa cognitive test, after free and informed consent. On the course of study was assured the principles of the Declaration of Helsinki. The following non-parametric tests were used to correlate the variables: Wilcoxon, Spearman, and Mann-Whitney. Results – Compared to baseline, in the caffeine condition there was an increase in flow variations in the middle cerebral arteries (p=0.0001), the same happened with the MoCa Test score (p=0.0001). Discussion – In the analysis of the flow of the main cerebral arteries and when performing cognitive tests, there is a significant increase in the flow under the effect of the caffeine, although this is more noticeable in the middle cerebral artery. Conclusion – The middle cerebral artery is the artery most susceptible to modifications, however, these are independent of the beverage with caffeine used, the same happens when performing the MoCa Test. |
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Effect of caffeine and cognitive tests on cerebral hemodynamic in young students from the Dr. Lopes Dias Superior Health SchoolEfeito da cafeína e testes cognitivos na avaliação hemodinâmica cerebral em jovens estudantes da Escola Superior de Saúde Dr. Lopes DiasCafeínaTriplex scan transcranianoTestes cognitivosArtérias cerebraisCaffeineTranscranial color-coded duplex sonographyCerebral arteriesCognitive testsIntroduction – Caffeine induces physiological changes, such as increased blood pressure, which is reflected in cerebral hemodynamics. Objectives – Evaluate the effect of caffeine on changes in the flow of the cerebral arteries studied, as well as relate their effect with cognitive tests. Methods – Observational, prospective study in 35 students, aged between 18 and 25, at Escola Superior de Saude Dr. Lopes Dias. The volunteers were divided into two groups, with group 1 having a normal coffee and group 2 being a white brand decaffeinated, without added sugar. The procedure was divided into two phases, pre- and post-stimulant. Data were collected through the transcranial color-coded duplex sonography and the MoCa cognitive test, after free and informed consent. On the course of study was assured the principles of the Declaration of Helsinki. The following non-parametric tests were used to correlate the variables: Wilcoxon, Spearman, and Mann-Whitney. Results – Compared to baseline, in the caffeine condition there was an increase in flow variations in the middle cerebral arteries (p=0.0001), the same happened with the MoCa Test score (p=0.0001). Discussion – In the analysis of the flow of the main cerebral arteries and when performing cognitive tests, there is a significant increase in the flow under the effect of the caffeine, although this is more noticeable in the middle cerebral artery. Conclusion – The middle cerebral artery is the artery most susceptible to modifications, however, these are independent of the beverage with caffeine used, the same happens when performing the MoCa Test.Introdução – A cafeína induz alterações fisiológicas, como o aumento da pressão arterial, que se refletem na hemodinâmica cerebral. Objetivos – Avaliar o efeito da cafeína nas velocidades de fluxo das artérias cerebrais, bem como relacionar o seu efeito com testes cognitivos. Método – Estudo observacional, prospetivo, em 35 estudantes, dos 18 aos 25 anos, da Escola Superior de Saúde Dr. Lopes Dias. Os voluntários foram distribuídos em dois grupos, sendo que o grupo 1 consumiu um café normal e o grupo 2 um descafeinado de marca branca, sem adição de açúcar. Os dados foram recolhidos através da realização do exame triplex scan transcraniano e do teste cognitivo MoCa, após realizado consentimento livre e esclarecido. O procedimento foi dividido em duas fases, pré e pós-estimulante. No decorrer do estudo foram assegurados os princípios da declaração de Helsínquia. Na correlação das variáveis foram utilizados os testes não paramétricos Wilcoxon, Spearman e Mann-Whitney. Resultados – Comparativamente ao basal, na condição de cafeína houve um aumento nas velocidades de fluxo das artérias cerebrais médias (p=0,0001), o mesmo sucedeu com a pontuação do MoCa Teste (p=0,0001). Discussão – Na análise das velocidades de fluxo das principais artérias cerebrais e aquando da realização de testes cognitivos constata-se um aumento significativo das velocidades de fluxo sob efeito da cafeína, apesar de esta ser mais notória na artéria cerebral média. Conclusão – A artéria cerebral média é a artéria mais suscetível a alterações; no entanto, estas não diferem entre o café normal e descafeinado; o mesmo acontece aquando da realização do MoCa Teste.Escola Superior de Tecnologia da Saúde de Lisboa (Instituto Politécnico de Lisboa)2022-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://doi.org/10.25758/set.489oai:journals.ipl.pt:article/489Saúde e Tecnologia; No. 26 (2022): Maio 2022; 36-41Saúde & Tecnologia; N.º 26 (2022): Maio 2022; 36-411646-9704reponame: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/489https://doi.org/10.25758/set.489https://journals.ipl.pt/stecnologia/article/view/489/574Pires, MarizeteNunes, GilRodrigues, FranciscoCoelho, PatríciaPires, Joanainfo:eu-repo/semantics/openAccess2022-12-20T10:58:36Zoai:journals.ipl.pt:article/489Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:21:20.245117Repositório 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 |
Effect of caffeine and cognitive tests on cerebral hemodynamic in young students from the Dr. Lopes Dias Superior Health School Efeito da cafeína e testes cognitivos na avaliação hemodinâmica cerebral em jovens estudantes da Escola Superior de Saúde Dr. Lopes Dias |
title |
Effect of caffeine and cognitive tests on cerebral hemodynamic in young students from the Dr. Lopes Dias Superior Health School |
spellingShingle |
Effect of caffeine and cognitive tests on cerebral hemodynamic in young students from the Dr. Lopes Dias Superior Health School Pires, Marizete Cafeína Triplex scan transcraniano Testes cognitivos Artérias cerebrais Caffeine Transcranial color-coded duplex sonography Cerebral arteries Cognitive tests |
title_short |
Effect of caffeine and cognitive tests on cerebral hemodynamic in young students from the Dr. Lopes Dias Superior Health School |
title_full |
Effect of caffeine and cognitive tests on cerebral hemodynamic in young students from the Dr. Lopes Dias Superior Health School |
title_fullStr |
Effect of caffeine and cognitive tests on cerebral hemodynamic in young students from the Dr. Lopes Dias Superior Health School |
title_full_unstemmed |
Effect of caffeine and cognitive tests on cerebral hemodynamic in young students from the Dr. Lopes Dias Superior Health School |
title_sort |
Effect of caffeine and cognitive tests on cerebral hemodynamic in young students from the Dr. Lopes Dias Superior Health School |
author |
Pires, Marizete |
author_facet |
Pires, Marizete Nunes, Gil Rodrigues, Francisco Coelho, Patrícia Pires, Joana |
author_role |
author |
author2 |
Nunes, Gil Rodrigues, Francisco Coelho, Patrícia Pires, Joana |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Pires, Marizete Nunes, Gil Rodrigues, Francisco Coelho, Patrícia Pires, Joana |
dc.subject.por.fl_str_mv |
Cafeína Triplex scan transcraniano Testes cognitivos Artérias cerebrais Caffeine Transcranial color-coded duplex sonography Cerebral arteries Cognitive tests |
topic |
Cafeína Triplex scan transcraniano Testes cognitivos Artérias cerebrais Caffeine Transcranial color-coded duplex sonography Cerebral arteries Cognitive tests |
description |
Introduction – Caffeine induces physiological changes, such as increased blood pressure, which is reflected in cerebral hemodynamics. Objectives – Evaluate the effect of caffeine on changes in the flow of the cerebral arteries studied, as well as relate their effect with cognitive tests. Methods – Observational, prospective study in 35 students, aged between 18 and 25, at Escola Superior de Saude Dr. Lopes Dias. The volunteers were divided into two groups, with group 1 having a normal coffee and group 2 being a white brand decaffeinated, without added sugar. The procedure was divided into two phases, pre- and post-stimulant. Data were collected through the transcranial color-coded duplex sonography and the MoCa cognitive test, after free and informed consent. On the course of study was assured the principles of the Declaration of Helsinki. The following non-parametric tests were used to correlate the variables: Wilcoxon, Spearman, and Mann-Whitney. Results – Compared to baseline, in the caffeine condition there was an increase in flow variations in the middle cerebral arteries (p=0.0001), the same happened with the MoCa Test score (p=0.0001). Discussion – In the analysis of the flow of the main cerebral arteries and when performing cognitive tests, there is a significant increase in the flow under the effect of the caffeine, although this is more noticeable in the middle cerebral artery. Conclusion – The middle cerebral artery is the artery most susceptible to modifications, however, these are independent of the beverage with caffeine used, the same happens when performing the MoCa Test. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-06-01 |
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.489 oai:journals.ipl.pt:article/489 |
url |
https://doi.org/10.25758/set.489 |
identifier_str_mv |
oai:journals.ipl.pt:article/489 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://journals.ipl.pt/stecnologia/article/view/489 https://doi.org/10.25758/set.489 https://journals.ipl.pt/stecnologia/article/view/489/574 |
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 |
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. 26 (2022): Maio 2022; 36-41 Saúde & Tecnologia; N.º 26 (2022): Maio 2022; 36-41 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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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