Pub Date : 2023-01-01DOI: 10.1590/1980-0037.2023v25e78408
Samuel Cézar Alexandre Silva, Brenda Egito de Carvalho, Walmir Romário dos Santos, Wlaldemir Roberto dos Santos
Abstract Due to the ease of its practice, walking / running can be performed in such a way that there is no adequate control or monitoring, resulting in the appearance of injuries, highlighting patellofemoral pain. Thus, the present study aimed to verify the levels of patellofemoral pain in walk / run practitioners. The sample consisted of 318 individuals, selected in a non-probabilistic manner, for convenience and adherence, including over 18 years old, both sexes, living in the state of Pernambuco, Brazil, who practiced walking / running. Data collection was performed using an online questionnaire on the google platform. Participants who agreed to participate answered a sociodemographic questionnaire, the International Physical Activity Questionnaire (IPAQ) and a subscale of patellofemoral pain and osteoarthritis of the KOOS questionnaire. Data were presented using descriptive statistics (mean and standard deviation), submitted to inferential statistics using Student's t test, ANOVA with Bonferroni's post hoc to show the effect of comparisons, considering a significance level of 5% (p <0.05). There were no significant differences between the variables analyzed (p = 0.599; ES = 0.06), suggesting that there is no difference in patellofemoral pain in practitioners of walking / running between the sexes and different levels of physical activity; research with larger samples and monitoring of more variables, in the search for more assertive results, should be carried out.
{"title":"Influence of walking and running on patellofemoral pain","authors":"Samuel Cézar Alexandre Silva, Brenda Egito de Carvalho, Walmir Romário dos Santos, Wlaldemir Roberto dos Santos","doi":"10.1590/1980-0037.2023v25e78408","DOIUrl":"https://doi.org/10.1590/1980-0037.2023v25e78408","url":null,"abstract":"Abstract Due to the ease of its practice, walking / running can be performed in such a way that there is no adequate control or monitoring, resulting in the appearance of injuries, highlighting patellofemoral pain. Thus, the present study aimed to verify the levels of patellofemoral pain in walk / run practitioners. The sample consisted of 318 individuals, selected in a non-probabilistic manner, for convenience and adherence, including over 18 years old, both sexes, living in the state of Pernambuco, Brazil, who practiced walking / running. Data collection was performed using an online questionnaire on the google platform. Participants who agreed to participate answered a sociodemographic questionnaire, the International Physical Activity Questionnaire (IPAQ) and a subscale of patellofemoral pain and osteoarthritis of the KOOS questionnaire. Data were presented using descriptive statistics (mean and standard deviation), submitted to inferential statistics using Student's t test, ANOVA with Bonferroni's post hoc to show the effect of comparisons, considering a significance level of 5% (p <0.05). There were no significant differences between the variables analyzed (p = 0.599; ES = 0.06), suggesting that there is no difference in patellofemoral pain in practitioners of walking / running between the sexes and different levels of physical activity; research with larger samples and monitoring of more variables, in the search for more assertive results, should be carried out.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135659558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1590/1980-0037.2023v25e90370
Fernanda Carneiro Mussi, Eliane Barbosa de Souza, Fernanda Michelle Santos e Silva, Francisco José Gondim Pitanga, Ana Luísa Patrão, Ana Clara Paixão Campos
Abstract Physical Insufficient levels of physical activity and sedentary behavior are highly prevalent worldwide and associated with cardiometabolic diseases and may vary according to gender and academic training. The objective was to investigate the association of sex and academic training with the level of physical activity and time spent in sedentary behavior in nursing students. It is a cross-sectional study with 286 nursing students from a public university. A sociodemographic and academic characterization instrument and an extended version of the International Physical Activity Questionnaire were applied. Data were analyzed descriptively and by Pearson's Chi-Square/Fisher's Exact test. The significance level was 5%. 65.7% of university students were active. Men were more active in leisure (p=0.000) and commuting (p=0.03). There was no association between sex and semester and total physical activity level. The prevalence of time in sedentary behavior ≥ 8 h/day for seven, five days, and weekends were 39.3%, 57.1%, and 21.4% for men and 55.0%, 65.1%, and 43.0% for women. A more significant proportion of women showed time in sedentary behavior ≥ 8 h/day on weekends (p=0.015) than men. A higher proportion between the 1st and 5th semesters remained ≥ 8 h/day in sedentary behavior on seven (p=0.024) and five days (p=0.001) week compared to those between the 6th and 10th semesters. The prevalence of insufficient physical activity levels and a long time in sedentary behavior were high and influenced by gender and training phase. Men were more active in commuting and leisure than women. Sedentary behavior is associated with gender and a training phase.
{"title":"Association of sex and training phase with physical activity and sedentary behavior in nursing students","authors":"Fernanda Carneiro Mussi, Eliane Barbosa de Souza, Fernanda Michelle Santos e Silva, Francisco José Gondim Pitanga, Ana Luísa Patrão, Ana Clara Paixão Campos","doi":"10.1590/1980-0037.2023v25e90370","DOIUrl":"https://doi.org/10.1590/1980-0037.2023v25e90370","url":null,"abstract":"Abstract Physical Insufficient levels of physical activity and sedentary behavior are highly prevalent worldwide and associated with cardiometabolic diseases and may vary according to gender and academic training. The objective was to investigate the association of sex and academic training with the level of physical activity and time spent in sedentary behavior in nursing students. It is a cross-sectional study with 286 nursing students from a public university. A sociodemographic and academic characterization instrument and an extended version of the International Physical Activity Questionnaire were applied. Data were analyzed descriptively and by Pearson's Chi-Square/Fisher's Exact test. The significance level was 5%. 65.7% of university students were active. Men were more active in leisure (p=0.000) and commuting (p=0.03). There was no association between sex and semester and total physical activity level. The prevalence of time in sedentary behavior ≥ 8 h/day for seven, five days, and weekends were 39.3%, 57.1%, and 21.4% for men and 55.0%, 65.1%, and 43.0% for women. A more significant proportion of women showed time in sedentary behavior ≥ 8 h/day on weekends (p=0.015) than men. A higher proportion between the 1st and 5th semesters remained ≥ 8 h/day in sedentary behavior on seven (p=0.024) and five days (p=0.001) week compared to those between the 6th and 10th semesters. The prevalence of insufficient physical activity levels and a long time in sedentary behavior were high and influenced by gender and training phase. Men were more active in commuting and leisure than women. Sedentary behavior is associated with gender and a training phase.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135613445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1590/1980-0037.2023v25e90191
Brenda Morgana Souza Rocha, Matheus Frota Oliveira Souto, Victor Carvalho Narciso Mendes, João Vitor Braga Ferreira, Eduardo de Oliveira Azevedo, Ana Luiza Lafetá Prates Evangelista Cunha, Josiane Santos Brant Rocha, Lucineia de Pinho
Abstract This study sought to analyze the practice of physical activity (PA) among university students, during the COVID-19 pandemic, and associated factors. This is a cross-sectional study with an analytical approach, carried out with 857 university students enrolled in higher education institutions in Montes Claros, in the state of Minas Gerais. Data collection was carried out using the Google forms, which was shared via social networks, containing questions regarding sociodemographic profile, physical activity, clinical factors, and behavioral and health habits. A descriptive exploratory analysis of the data was carried out, with frequency distribution of the study variables. Subsequently, bivariate analyses were performed and the associated variables with up to a level of 20% (p ≤ 0.20) were selected for multiple analysis using Poisson Regression. The prevalence non-practice of PA during the pandemic was of 56.8% among college students. Variables, such as being with a partner (PR=1.28), presence of respiratory diseases (PR=1.17), negative self-perception of health (PR=1.37), increased consumption of ultra-processed foods (PR=1.29), and presence of depression (PR=1.21), showed statistically significant associations with the practice of physical activity. We concluded that the non-practice of PA in university students during the social isolation caused by the COVID-19 pandemic is associated with marital status, presence of respiratory diseases, negative self-perception of health, increased consumption of ultra-processed foods, and presence of depression.
{"title":"Factors associated with the practice of physical activity among university students in social isolation during the covid-19 pandemic","authors":"Brenda Morgana Souza Rocha, Matheus Frota Oliveira Souto, Victor Carvalho Narciso Mendes, João Vitor Braga Ferreira, Eduardo de Oliveira Azevedo, Ana Luiza Lafetá Prates Evangelista Cunha, Josiane Santos Brant Rocha, Lucineia de Pinho","doi":"10.1590/1980-0037.2023v25e90191","DOIUrl":"https://doi.org/10.1590/1980-0037.2023v25e90191","url":null,"abstract":"Abstract This study sought to analyze the practice of physical activity (PA) among university students, during the COVID-19 pandemic, and associated factors. This is a cross-sectional study with an analytical approach, carried out with 857 university students enrolled in higher education institutions in Montes Claros, in the state of Minas Gerais. Data collection was carried out using the Google forms, which was shared via social networks, containing questions regarding sociodemographic profile, physical activity, clinical factors, and behavioral and health habits. A descriptive exploratory analysis of the data was carried out, with frequency distribution of the study variables. Subsequently, bivariate analyses were performed and the associated variables with up to a level of 20% (p ≤ 0.20) were selected for multiple analysis using Poisson Regression. The prevalence non-practice of PA during the pandemic was of 56.8% among college students. Variables, such as being with a partner (PR=1.28), presence of respiratory diseases (PR=1.17), negative self-perception of health (PR=1.37), increased consumption of ultra-processed foods (PR=1.29), and presence of depression (PR=1.21), showed statistically significant associations with the practice of physical activity. We concluded that the non-practice of PA in university students during the social isolation caused by the COVID-19 pandemic is associated with marital status, presence of respiratory diseases, negative self-perception of health, increased consumption of ultra-processed foods, and presence of depression.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135613437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1590/1980-0037.2023v25e90562
Leandro Albuquerque Vieira, Francisco Zacaron Werneck, Emerson Filipino Coelho, Luciano Miranda, Jorge Roberto Perrout de Lima
Abstract The knowledge of coaches has been used in research on talent identification and development. The objective was to investigate how Brazilian triathlon coaches identify talents and what is the importance of different factors and indicators for the development of young triathletes. 37 coaches (89% male; 36.2 ± 8.3 years; 43% international competitive level) answered an online questionnaire about anthropometric, physical-motor, technical, tactical, psychological and environmental characteristics. On a scale of 1 (not very important) to 5 (extremely important), coaches indicated to what extent a factor/indicator of sporting potential was important for talent development in triathlon. 45.9% of the coaches perform talent identification, mainly by physical-motor tests and triathlon simulations. In talent development, the physical-motor factor was the most important, followed by the technical, psychological and anthropometric factor, and finally the tactical and environmental factor. Most coaches considered as extremely important the following indicators: determination (70%), aerobic endurance (65%), specific swimming skills (62%), ability to withstand pressure (59%), and efficiency of the cyclic gesture of swimming, cycling, and running (57%). We conclude that Brazilian triathlon coaches identify talents mainly through batteries of tests and triathlon simulations and consider the physical-motor factor the most important for the development of young talented triathletes, but not the only one.
{"title":"Talent identification and development in Olympic triathlon: a perspective from Brazilian coaches","authors":"Leandro Albuquerque Vieira, Francisco Zacaron Werneck, Emerson Filipino Coelho, Luciano Miranda, Jorge Roberto Perrout de Lima","doi":"10.1590/1980-0037.2023v25e90562","DOIUrl":"https://doi.org/10.1590/1980-0037.2023v25e90562","url":null,"abstract":"Abstract The knowledge of coaches has been used in research on talent identification and development. The objective was to investigate how Brazilian triathlon coaches identify talents and what is the importance of different factors and indicators for the development of young triathletes. 37 coaches (89% male; 36.2 ± 8.3 years; 43% international competitive level) answered an online questionnaire about anthropometric, physical-motor, technical, tactical, psychological and environmental characteristics. On a scale of 1 (not very important) to 5 (extremely important), coaches indicated to what extent a factor/indicator of sporting potential was important for talent development in triathlon. 45.9% of the coaches perform talent identification, mainly by physical-motor tests and triathlon simulations. In talent development, the physical-motor factor was the most important, followed by the technical, psychological and anthropometric factor, and finally the tactical and environmental factor. Most coaches considered as extremely important the following indicators: determination (70%), aerobic endurance (65%), specific swimming skills (62%), ability to withstand pressure (59%), and efficiency of the cyclic gesture of swimming, cycling, and running (57%). We conclude that Brazilian triathlon coaches identify talents mainly through batteries of tests and triathlon simulations and consider the physical-motor factor the most important for the development of young talented triathletes, but not the only one.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135494855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/1980-0037.2022v24e84063
P. Abdalla, Lucimére Bohn, J. Mota, D. Machado
ABSTRACT Absolute muscle strength or adjusted by body mass index (BMI) are useful to identify sarcopenia. However, these values are not accurate for older adults with extreme body sizes because the nonlinear relationship between strength and body size. The purpose was to determine cut-off points for identify sarcopenia in older adults using allometric coefficients to normalise handgrip strength (HGS) and 30-sec chair stand test (30-s CST) by body size. Allometric exponents were proposed with log-linear models for body-size variables (body mass, height and BMI). The remotion of body-size effect on muscle strength with allometric normalisation was tested by partial correlation. Cut-off points for low muscle strength were established by ROC curve and Youden index considering functional limitation (six-minute walk test<400m). Allometric exponents provided for body-size variables range from -0.01 to 2.28 (HGS) and -0.27 to 0.21 (30-s CST). The effect of body size on muscle strength was removed with allometric normalisation (r<0.30). Cut-off points accuracy was always adequate (AUC≥0.78; p<0.001). In conclusion, cut-off points of HGS and 30-s CST allometrically normalised were proposed to identify sarcopenia in Portuguese older adults and allometry maintained adequate the accuracy (AUC>70%). Allometry removed influence of body size on the expression of HGS and 30-s CST and permits evaluate muscle strength regardless of body-size.
{"title":"Allometrically adjusted handgrip strength and chair stand test cut points to identify sarcopenia in older Portuguese adults","authors":"P. Abdalla, Lucimére Bohn, J. Mota, D. Machado","doi":"10.1590/1980-0037.2022v24e84063","DOIUrl":"https://doi.org/10.1590/1980-0037.2022v24e84063","url":null,"abstract":"ABSTRACT Absolute muscle strength or adjusted by body mass index (BMI) are useful to identify sarcopenia. However, these values are not accurate for older adults with extreme body sizes because the nonlinear relationship between strength and body size. The purpose was to determine cut-off points for identify sarcopenia in older adults using allometric coefficients to normalise handgrip strength (HGS) and 30-sec chair stand test (30-s CST) by body size. Allometric exponents were proposed with log-linear models for body-size variables (body mass, height and BMI). The remotion of body-size effect on muscle strength with allometric normalisation was tested by partial correlation. Cut-off points for low muscle strength were established by ROC curve and Youden index considering functional limitation (six-minute walk test<400m). Allometric exponents provided for body-size variables range from -0.01 to 2.28 (HGS) and -0.27 to 0.21 (30-s CST). The effect of body size on muscle strength was removed with allometric normalisation (r<0.30). Cut-off points accuracy was always adequate (AUC≥0.78; p<0.001). In conclusion, cut-off points of HGS and 30-s CST allometrically normalised were proposed to identify sarcopenia in Portuguese older adults and allometry maintained adequate the accuracy (AUC>70%). Allometry removed influence of body size on the expression of HGS and 30-s CST and permits evaluate muscle strength regardless of body-size.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88017944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/1980-0037.2022v24e77265
Mylena Aparecida Rodrigues Alves, Daniel Cavalgante da Graça, Bruno Travassos
Abstract This study aimed to construct a tool for observing the imbalance pass in futsal through Microsoft Excel® software and to establish its content validity and intra- and interobserver reliability based on the calculation of the content validity coefficient (CVC) and the intraclass correlation coefficient (ICC). For the construction of the tool, futsal specialists (n = 10) with an average age of 44.1 ± 12.34 years and 19 ± 7.21 years of experience in the field participated in the study. 60% of the specialists have international-level expertise and 50% are active in practice and in academic field (higher education professor). According to the methodology, 23 items were proposed to assess the imbalance pass in futsal. CVC was calculated based on language clarity, practical pertinence and theoretical relevance for each item of the instrument and for the instrument as a whole; ICC was calculated based on intra- and interobserver agreement. Language clarity, practical pertinence and theoretical relevance revealed a result of 0.92, 0.93 and 0.95, respectively, and the values for intra- and interobserver agreement reliability were excellent according to the literature (> 0.75). Thus, it is concluded that the items proposed in the tool obtained satisfactory psychometric properties.
{"title":"Construction and validation of an observation tool of the imbalance pass in futsal","authors":"Mylena Aparecida Rodrigues Alves, Daniel Cavalgante da Graça, Bruno Travassos","doi":"10.1590/1980-0037.2022v24e77265","DOIUrl":"https://doi.org/10.1590/1980-0037.2022v24e77265","url":null,"abstract":"Abstract This study aimed to construct a tool for observing the imbalance pass in futsal through Microsoft Excel® software and to establish its content validity and intra- and interobserver reliability based on the calculation of the content validity coefficient (CVC) and the intraclass correlation coefficient (ICC). For the construction of the tool, futsal specialists (n = 10) with an average age of 44.1 ± 12.34 years and 19 ± 7.21 years of experience in the field participated in the study. 60% of the specialists have international-level expertise and 50% are active in practice and in academic field (higher education professor). According to the methodology, 23 items were proposed to assess the imbalance pass in futsal. CVC was calculated based on language clarity, practical pertinence and theoretical relevance for each item of the instrument and for the instrument as a whole; ICC was calculated based on intra- and interobserver agreement. Language clarity, practical pertinence and theoretical relevance revealed a result of 0.92, 0.93 and 0.95, respectively, and the values for intra- and interobserver agreement reliability were excellent according to the literature (> 0.75). Thus, it is concluded that the items proposed in the tool obtained satisfactory psychometric properties.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79716524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/1980-0037.2022v24e83828
Evandro Lázari, A. Moraes, Rafael Aoki de Alcântara, Rafael Luiz de Oliveira, Ricardo Montenegro Gazzaneo
Abstract The aim of this study was to describe the correlation between body composition data obtained through DXA and through skinfolds strategy, with some of their respective formulas, in sprinters. The sample consisted of 15 male sprinters (23.81 years ± 3.11; 70.06 Kg ± 4.38; and 179.13 CM ± 5.16) all high performance runners of speed and barriers events (100m, 200m, 400m, 110m with barriers and 400m with barriers). The athletes were submitted to DXA evaluation procedure and to skinfolds collection (triceps, biceps, subscapular, supra iliac, abdominal, medial thigh and calf) and the results were calculated through four distinct equations: Slaughter, Faulkner, Lázari and Boileau. The respective DXA correlations (0.60; 0.81; 0.23 and 0.48) and the equations predicted by skinfold strategy were calculated using Pearson correlation. Among the equations used, Faulkner's was the one presenting highest correlation value when compared to DXA protocol, although all of them aimed to estimate values for BF%.
{"title":"Correlation between body composition data obtained by DXA and skinfold predictive protocols in sprinters","authors":"Evandro Lázari, A. Moraes, Rafael Aoki de Alcântara, Rafael Luiz de Oliveira, Ricardo Montenegro Gazzaneo","doi":"10.1590/1980-0037.2022v24e83828","DOIUrl":"https://doi.org/10.1590/1980-0037.2022v24e83828","url":null,"abstract":"Abstract The aim of this study was to describe the correlation between body composition data obtained through DXA and through skinfolds strategy, with some of their respective formulas, in sprinters. The sample consisted of 15 male sprinters (23.81 years ± 3.11; 70.06 Kg ± 4.38; and 179.13 CM ± 5.16) all high performance runners of speed and barriers events (100m, 200m, 400m, 110m with barriers and 400m with barriers). The athletes were submitted to DXA evaluation procedure and to skinfolds collection (triceps, biceps, subscapular, supra iliac, abdominal, medial thigh and calf) and the results were calculated through four distinct equations: Slaughter, Faulkner, Lázari and Boileau. The respective DXA correlations (0.60; 0.81; 0.23 and 0.48) and the equations predicted by skinfold strategy were calculated using Pearson correlation. Among the equations used, Faulkner's was the one presenting highest correlation value when compared to DXA protocol, although all of them aimed to estimate values for BF%.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83620013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.1590/1980-0037.2022v24e83146
Nadja Fernandes da Silva, C. Pinho, A. Diniz, I. K. G. D. Arruda, Ana Paula Dornelas Leão, I. G. Rodrigues
Abstract As obesity has reached epidemic proportions and given the current recognition of central adiposity as an important cardiometabolic risk factor, several researchers have focused on developing and validating predictive indexes and equations to evaluate Visceral Adipose Tissue (VAT). This study evaluates the applicability of the Visceral Adiposity Index (VAI) for predicting cardiometabolic risk in individuals treated in a hospital In the northeast region of Brazil. The VAT was evaluated by computed tomography (CT) and the VAI was calculated through specific equations for each gender. The sample involved adult and elderly patients of both genders followed up in a cardiology outpatient clinic. The following cardiometabolic parameters were collected: fasting glycemia, glycated hemoglobin, lipid profile, C-reactive protein (CRP) and uric acid. The simple linear regression was used to evaluate the explanatory power of the VAI in relation to the volume of VAT determined by CT. The predictive capacity of VAI in relation to the volume of VAT determined by CT was 25.8% (p=0.004) for males and 19.9% (p<0.001) for females. VAI correlated strongly with the triglyceride (TG) (p<0.001) and TG/high-density lipoprotein (HDL) ratio (p<0.001) and inversely correlated with HDL (p<0.001). Moreover, VAI showed low correlation with the following variables: abdominal circumference, total cholesterol, low density lipoprotein, fasting glycemia, and glycated hemoglobin (p<0.05). VAI was associated with variables considered as cardiometabolic risk factors, but exhibited a low predictive capacity regarding the volume of VAT determined by CT. Thus, caution is recommended in its use in Brazilian individuals.
{"title":"The applicability of the Visceral Adiposity Index (VAI) for predicting visceral fat","authors":"Nadja Fernandes da Silva, C. Pinho, A. Diniz, I. K. G. D. Arruda, Ana Paula Dornelas Leão, I. G. Rodrigues","doi":"10.1590/1980-0037.2022v24e83146","DOIUrl":"https://doi.org/10.1590/1980-0037.2022v24e83146","url":null,"abstract":"Abstract As obesity has reached epidemic proportions and given the current recognition of central adiposity as an important cardiometabolic risk factor, several researchers have focused on developing and validating predictive indexes and equations to evaluate Visceral Adipose Tissue (VAT). This study evaluates the applicability of the Visceral Adiposity Index (VAI) for predicting cardiometabolic risk in individuals treated in a hospital In the northeast region of Brazil. The VAT was evaluated by computed tomography (CT) and the VAI was calculated through specific equations for each gender. The sample involved adult and elderly patients of both genders followed up in a cardiology outpatient clinic. The following cardiometabolic parameters were collected: fasting glycemia, glycated hemoglobin, lipid profile, C-reactive protein (CRP) and uric acid. The simple linear regression was used to evaluate the explanatory power of the VAI in relation to the volume of VAT determined by CT. The predictive capacity of VAI in relation to the volume of VAT determined by CT was 25.8% (p=0.004) for males and 19.9% (p<0.001) for females. VAI correlated strongly with the triglyceride (TG) (p<0.001) and TG/high-density lipoprotein (HDL) ratio (p<0.001) and inversely correlated with HDL (p<0.001). Moreover, VAI showed low correlation with the following variables: abdominal circumference, total cholesterol, low density lipoprotein, fasting glycemia, and glycated hemoglobin (p<0.05). VAI was associated with variables considered as cardiometabolic risk factors, but exhibited a low predictive capacity regarding the volume of VAT determined by CT. Thus, caution is recommended in its use in Brazilian individuals.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72535163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-24DOI: 10.1590/1980-0037.2021v23e77035
Guilherme Beneduzzi Mantovani, R. V. Barreto, Victor Alvino de Souza, C. B. Bueno Júnior, C. Assumpção, C. Greco, B. Denadai, L. C. D. de Lima
ABSTRACT We aimed to investigate the influence of alpha-actinin-3 (ACTN3) R577X polymorphism on responsiveness to post-activation performance enhancement (PAPE) of countermovement jumps (CMJ) in untrained subjects. Sixteen untrained men were allocated into two groups according to their ACTN3 gene alleles: homozygous for the X allele (XX, n = 9) or homozygous for the R allele (RR, n = 7). CMJ height, mean power output and vertical force were determined twice (CMJ1 and CMJ2) in two conditions: control (CON) and potentiated (PAPE). In the CON condition, CMJ were performed before and after a 15-min rest. In the PAPE condition, CMJ were performed 15 min before and 4 min following five squats with a 5-repetition maximum (5RM) load. Different conditions were applied on separate days in a randomized order. Statistical analysis involved three-way ANOVAs to compare the differences between conditions (CON and PAPE), time (CMJ1 and CMJ2), and groups (XX and RR). Significance level considered was p < 0.05. Effect sizes were calculated as Cohen’s d. The effect sizes for changes in CMJ height for CON and following pre-activation for PAPE were 0.04 and 0.08, respectively. No significant differences were found for CMJ height between XX and RR at baseline (1.07 ± 2.54 cm e -0.82 ± 2.56 cm, respectively). No differences were found (p>0.05) in responsiveness to PAPE between the groups (XX = -0.20 ± 1.6 cm and RR = -0.81 ± 2.7 cm). We conclude that ACTN3 gene polymorphisms does not influence responsiveness to PAPE.
摘要:本研究旨在探讨α -肌动蛋白-3 (ACTN3) R577X多态性对非训练对象反动作跳跃(CMJ)激活后性能增强(PAPE)反应性的影响。16名未经训练的男性根据其ACTN3基因等位基因分为两组:X等位基因纯合子组(XX, n = 9)和R等位基因纯合子组(RR, n = 7)。在对照(CON)和增强(PAPE)两种条件下测定CMJ高度、平均功率输出和垂直力(CMJ1和CMJ2)。对照组在休息15 min前后分别行CMJ。在PAPE条件下，CMJ在5次深蹲前15分钟和后4分钟进行，每次5次最大负荷(5RM)。不同的条件以随机顺序在不同的日子应用。统计学分析采用三因素方差分析比较条件(CON和PAPE)、时间(CMJ1和CMJ2)和组(XX和RR)之间的差异。考虑显著性水平为p < 0.05。效应量按Cohen’s d计算。CON和PAPE预激活后CMJ高度变化的效应量分别为0.04和0.08。XX和RR在基线时CMJ高度(分别为1.07±2.54 cm和-0.82±2.56 cm)无显著差异。两组患者对PAPE的反应性差异无统计学意义(p>0.05) (XX = -0.20±1.6 cm, RR = -0.81±2.7 cm)。我们得出结论，ACTN3基因多态性不影响对PAPE的反应性。
{"title":"The influence of the ACTN3 R577X polymorphism in the responsiveness to post-activation jump performance enhancement in untrained young men","authors":"Guilherme Beneduzzi Mantovani, R. V. Barreto, Victor Alvino de Souza, C. B. Bueno Júnior, C. Assumpção, C. Greco, B. Denadai, L. C. D. de Lima","doi":"10.1590/1980-0037.2021v23e77035","DOIUrl":"https://doi.org/10.1590/1980-0037.2021v23e77035","url":null,"abstract":"ABSTRACT We aimed to investigate the influence of alpha-actinin-3 (ACTN3) R577X polymorphism on responsiveness to post-activation performance enhancement (PAPE) of countermovement jumps (CMJ) in untrained subjects. Sixteen untrained men were allocated into two groups according to their ACTN3 gene alleles: homozygous for the X allele (XX, n = 9) or homozygous for the R allele (RR, n = 7). CMJ height, mean power output and vertical force were determined twice (CMJ1 and CMJ2) in two conditions: control (CON) and potentiated (PAPE). In the CON condition, CMJ were performed before and after a 15-min rest. In the PAPE condition, CMJ were performed 15 min before and 4 min following five squats with a 5-repetition maximum (5RM) load. Different conditions were applied on separate days in a randomized order. Statistical analysis involved three-way ANOVAs to compare the differences between conditions (CON and PAPE), time (CMJ1 and CMJ2), and groups (XX and RR). Significance level considered was p < 0.05. Effect sizes were calculated as Cohen’s d. The effect sizes for changes in CMJ height for CON and following pre-activation for PAPE were 0.04 and 0.08, respectively. No significant differences were found for CMJ height between XX and RR at baseline (1.07 ± 2.54 cm e -0.82 ± 2.56 cm, respectively). No differences were found (p>0.05) in responsiveness to PAPE between the groups (XX = -0.20 ± 1.6 cm and RR = -0.81 ± 2.7 cm). We conclude that ACTN3 gene polymorphisms does not influence responsiveness to PAPE.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77701530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-24DOI: 10.1590/1980-0037.2021v23e76932
L. O. Faria, S. Bredt, Amanda Isadora Ribeiro, L. Galatti, M. Albuquerque
abstract This study aimed to investigate the birthplace effect in Brazilian basketball athletes of both sexes according their states and geographical regions. Our hypothesis is that the São Paulo (SP) state is the leading player in the Southeastern region and stands out from the other regions. The birthplace of Brazilian athletes participating in the FIBA World Cup and in two national leagues were collected from open-access websites. Three hundred and fifteen athletes’ birthplaces were included. The absolute and relative frequencies of athletes’ birthplaces per state and geographical region were calculated. Chi-Square tests were used to compare the expected and the observed frequencies of birthplaces among regions and states. Odds Ratios and 95% confidence intervals were calculated to indicate the probability of a high-level athlete to be born in a certain region or state. The results completely confirmed our hypothesis, showing higher frequencies of athletes born in the Southeastern region, especially in the SP state. We concluded that the uneven participation in basketball in Brazil is caused by the continental dimensions of the country and the modality historical context. Concentrating basketball clubs on a single region or state (SP) leads to an underuse of the sporting potential in the country.
{"title":"Inequality in Brazilian basketball: the birthplace effect","authors":"L. O. Faria, S. Bredt, Amanda Isadora Ribeiro, L. Galatti, M. Albuquerque","doi":"10.1590/1980-0037.2021v23e76932","DOIUrl":"https://doi.org/10.1590/1980-0037.2021v23e76932","url":null,"abstract":"abstract This study aimed to investigate the birthplace effect in Brazilian basketball athletes of both sexes according their states and geographical regions. Our hypothesis is that the São Paulo (SP) state is the leading player in the Southeastern region and stands out from the other regions. The birthplace of Brazilian athletes participating in the FIBA World Cup and in two national leagues were collected from open-access websites. Three hundred and fifteen athletes’ birthplaces were included. The absolute and relative frequencies of athletes’ birthplaces per state and geographical region were calculated. Chi-Square tests were used to compare the expected and the observed frequencies of birthplaces among regions and states. Odds Ratios and 95% confidence intervals were calculated to indicate the probability of a high-level athlete to be born in a certain region or state. The results completely confirmed our hypothesis, showing higher frequencies of athletes born in the Southeastern region, especially in the SP state. We concluded that the uneven participation in basketball in Brazil is caused by the continental dimensions of the country and the modality historical context. Concentrating basketball clubs on a single region or state (SP) leads to an underuse of the sporting potential in the country.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84317860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：