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Características epidemiológicas da frequência cardíaca de repouso: relação com a prática de atividade física estratificada por sexo e controlada por fatores de confusão
No full textIntrodução: A frequência cardíaca de repouso é um marcador clínico importante e de fácil mensuração, servindo também como uma ajuda no prognóstico de alerta a uma precoce deterioração clínica, entretanto ressalta-se que são limitados os números de estudos epidemiológicos que tiveram como objetivo verificar a frequência cardíaca de repouso em populações jovens e fatores de risco associados. Outro fator importante que ainda consiste em uma lacuna na literatura é o uso de aparelhos oscilométricos de pressão arterial na medição da FCR. Objetivos: Analisar a sensibilidade e especificidade do aparelho de pressão arterial na detecção da FCR em adolescentes. Examinar se a prática de atividade física constante nos diferentes domínios (escola, prática esportiva e ocupacional) é associada a menores valores de frequência cardíaca nesses jovens. Métodos: No primeiro estudo participaram 55 indivíduos, com idade entre 10 e 15 anos, foram realizadas avaliações antropométricas e a avaliação da frequência cardíaca de repouso, utilizando de forma simultânea o aparelho oscilométrico de pressão arterial e o monitor de frequência cardíaca. No segundo estudo 1011 indivíduos entre 10 e 17 anos, sendo que 454 eram do sexo masculino e 557 eram meninas. Foram realizadas avaliações da frequência cardíaca de repouso, antropométricas, comportamento sedentário, prática habitual de atividade física, hábitos tabagistas. Resultados e conclusão: Média/alta correlações foram encontrados (r = 0,80) entre o monitor de frequência cardíaca e aparelho oscilométrico. O coeficiente de correlação intraclasse apresentou valores de 0,88 (0,66-0,96) para as meninas e 0,90 (0,82-0,95) para os meninos. A sensibilidade foi de 70,0 (34,8-93,3) e 80,4 (28.4- 99.5) e a especificidade de 86,6 (69,3-96,2) e 90,0 (55,5-99,7) para meninos e meninas. Foram encontradas diferenças significativas na diminuição dos valores de frequência cardíaca de repouso com a atividade esportiva nos meninos -0.58 (-1.05; -0.11), nas meninas -0.87 (-1.34; -0.39), ao verificar a prática de atividade física ocupacional, foi detectado somente para os meninos -1.60 (-3.05; -0.18) e na atividade física total em ambos os sexos, meninos -0.52 (-0.92; -0.12) e de -0.67 (-1.07; -0.28). O aparelho oscilométrico mostrou boa reprodutibilidade e moderada sensibilidade e especificidade para medir a frequência cardíaca de repouso em adolescentes. Supõe-se que a prática de atividade física esportiva e total para os dois sexos e no ocupacional para a amostra do sexo masculino, são associados a menores valores de frequência cardíaca de repouso.Introduction: The resting heart rate is an important clinical marker and easy to measure, also serving as an aid to alert prognosis early clinical deterioration, however it is noteworthy that the number of epidemiological studies that aimed to are limited check resting heart rate in young populations and associated risk factors. Another important factor which still consists of a gap in the literature is the use of devices oscillometric blood pressure measurement of HRR. Objectives: To evaluate the sensitivity and specificity of blood pressure device to detect the FCR in adolescents. Examine the practice of constant physical activity in the various areas (school, sports and occupational practice) is associated with lower values of heart rate in these young people. Methods: In the first study participated 55 individuals, aged between 10 and 15 years, were carried out anthropometric measurements and the evaluation of resting heart rate, using simultaneously the oscillometric device for blood pressure and heart rate monitor. In the second study 1011 individuals between 10 and 17 years, and 454 were male and 557 were girls. Evaluations were carried out of the resting heart rate, anthropometric, sedentary behavior, habitual physical activity, smoking habits. Results and conclusion: Medium / High correlations were found (r = 0.80) between heart rate monitor and oscillometric device. The intraclass correlation coefficient showed values of 0.88 (from 0.66 to 0.96) for girls and 0.90 (0.82-0.95) for boys. The sensitivity was 70.0 (34.8 to 93.3) and 80.4 (28.4- 99.5) and specificity of 86.6 (69.3 to 96.2) and 90.0 (55,5- 99.7) for boys and girls. Significant differences were found in the reduction of heart rate values of home with the sporting activity in boys -0.58 (-1.05, -0.11), in girls -0.87 (-1.34, -0.39), to verify the practice of occupational physical activity, It was detected only for boys -1.60 (-3.05, -0.18) and total physical activity in both sexes, boys -0.52 (-0.92, -0.12) and -0.67 (-1.07, -0.28). The oscillometric device showed good reproducibility and moderate sensitivity and specificity to measure the resting heart rate in adolescents. It is assumed that the practice of sport and physical activity overall for both sexes and for occupational male sample, are associated with lower values of heart rate at rest.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES
Epidemiological characteristics of the resting heart rate: relationship to physical activity stratified by sex and controlled for confounders
No full textIntrodução: A frequência cardíaca de repouso é um marcador clínico importante e de fácil mensuração, servindo também como uma ajuda no prognóstico de alerta a uma precoce deterioração clínica, entretanto ressalta-se que são limitados os números de estudos epidemiológicos que tiveram como objetivo verificar a frequência cardíaca de repouso em populações jovens e fatores de risco associados. Outro fator importante que ainda consiste em uma lacuna na literatura é o uso de aparelhos oscilométricos de pressão arterial na medição da FCR. Objetivos: Analisar a sensibilidade e especificidade do aparelho de pressão arterial na detecção da FCR em adolescentes. Examinar se a prática de atividade física constante nos diferentes domínios (escola, prática esportiva e ocupacional) é associada a menores valores de frequência cardíaca nesses jovens. Métodos: No primeiro estudo participaram 55 indivíduos, com idade entre 10 e 15 anos, foram realizadas avaliações antropométricas e a avaliação da frequência cardíaca de repouso, utilizando de forma simultânea o aparelho oscilométrico de pressão arterial e o monitor de frequência cardíaca. No segundo estudo 1011 indivíduos entre 10 e 17 anos, sendo que 454 eram do sexo masculino e 557 eram meninas. Foram realizadas avaliações da frequência cardíaca de repouso, antropométricas, comportamento sedentário, prática habitual de atividade física, hábitos tabagistas. Resultados e conclusão: Média/alta correlações foram encontrados (r = 0,80) entre o monitor de frequência cardíaca e aparelho oscilométrico. O coeficiente de correlação intraclasse apresentou valores de 0,88 (0,66-0,96) para as meninas e 0,90 (0,82-0,95) para os meninos. A sensibilidade foi de 70,0 (34,8-93,3) e 80,4 (28.4- 99.5) e a especificidade de 86,6 (69,3-96,2) e 90,0 (55,5-99,7) para meninos e meninas. Foram encontradas diferenças significativas na diminuição dos valores de frequência cardíaca de repouso com a atividade esportiva nos meninos -0.58 (-1.05; -0.11), nas meninas -0.87 (-1.34; -0.39), ao verificar a prática de atividade física ocupacional, foi detectado somente para os meninos -1.60 (-3.05; -0.18) e na atividade física total em ambos os sexos, meninos -0.52 (-0.92; -0.12) e de -0.67 (-1.07; -0.28). O aparelho oscilométrico mostrou boa reprodutibilidade e moderada sensibilidade e especificidade para medir a frequência cardíaca de repouso em adolescentes. Supõe-se que a prática de atividade física esportiva e total para os dois sexos e no ocupacional para a amostra do sexo masculino, são associados a menores valores de frequência cardíaca de repouso.Introduction: The resting heart rate is an important clinical marker and easy to measure, also serving as an aid to alert prognosis early clinical deterioration, however it is noteworthy that the number of epidemiological studies that aimed to are limited check resting heart rate in young populations and associated risk factors. Another important factor which still consists of a gap in the literature is the use of devices oscillometric blood pressure measurement of HRR. Objectives: To evaluate the sensitivity and specificity of blood pressure device to detect the FCR in adolescents. Examine the practice of constant physical activity in the various areas (school, sports and occupational practice) is associated with lower values of heart rate in these young people. Methods: In the first study participated 55 individuals, aged between 10 and 15 years, were carried out anthropometric measurements and the evaluation of resting heart rate, using simultaneously the oscillometric device for blood pressure and heart rate monitor. In the second study 1011 individuals between 10 and 17 years, and 454 were male and 557 were girls. Evaluations were carried out of the resting heart rate, anthropometric, sedentary behavior, habitual physical activity, smoking habits. Results and conclusion: Medium / High correlations were found (r = 0.80) between heart rate monitor and oscillometric device. The intraclass correlation coefficient showed values of 0.88 (from 0.66 to 0.96) for girls and 0.90 (0.82-0.95) for boys. The sensitivity was 70.0 (34.8 to 93.3) and 80.4 (28.4- 99.5) and specificity of 86.6 (69.3 to 96.2) and 90.0 (55,5- 99.7) for boys and girls. Significant differences were found in the reduction of heart rate values of home with the sporting activity in boys -0.58 (-1.05, -0.11), in girls -0.87 (-1.34, -0.39), to verify the practice of occupational physical activity, It was detected only for boys -1.60 (-3.05, -0.18) and total physical activity in both sexes, boys -0.52 (-0.92, -0.12) and -0.67 (-1.07, -0.28). The oscillometric device showed good reproducibility and moderate sensitivity and specificity to measure the resting heart rate in adolescents. It is assumed that the practice of sport and physical activity overall for both sexes and for occupational male sample, are associated with lower values of heart rate at rest.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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