Pub Date : 2021-08-13DOI: 10.1590/S1980-65742021013120
João Paulo Torres di Gilio, Karen Correia Da Silva, R. Menezes
Abstract Aims: To analyze the structuring elements of the defensive phase of beach handball based on the coaches’ speeches. Methods: Five coaches of adult male and/or female teams that played the Beach Handball championship of Sao Paulo State were interviewed. For the analysis of the speeches, the Collective Subject Discourse method was used. Results: The defensive phase is structured from hierarchical aspects: numerical asymmetry (by the presence of the specialist player), defensive systems (influenced by the characteristics of the players of their own team and the opponents), and technical-tactical specific actions (defensive blocking, coverage, dissuading…). The numerical asymmetry and the defensive system are responsible for the choices of the technical-tactical actions. Conclusion: The defensive structuring elements are related in a hierarchical way, which provides a better understanding of beach handball by coaches and players.
{"title":"The structuring of the defensive phase of beach handball","authors":"João Paulo Torres di Gilio, Karen Correia Da Silva, R. Menezes","doi":"10.1590/S1980-65742021013120","DOIUrl":"https://doi.org/10.1590/S1980-65742021013120","url":null,"abstract":"Abstract Aims: To analyze the structuring elements of the defensive phase of beach handball based on the coaches’ speeches. Methods: Five coaches of adult male and/or female teams that played the Beach Handball championship of Sao Paulo State were interviewed. For the analysis of the speeches, the Collective Subject Discourse method was used. Results: The defensive phase is structured from hierarchical aspects: numerical asymmetry (by the presence of the specialist player), defensive systems (influenced by the characteristics of the players of their own team and the opponents), and technical-tactical specific actions (defensive blocking, coverage, dissuading…). The numerical asymmetry and the defensive system are responsible for the choices of the technical-tactical actions. Conclusion: The defensive structuring elements are related in a hierarchical way, which provides a better understanding of beach handball by coaches and players.","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133457588","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 : 2021-06-11DOI: 10.1590/S1980-65742021007121
Rogério Othon Teixeira Alves, Luciano Pereira da Silva, E. Pereira, Georgino Jorge de Souza Neto, Fernanda de Souza Cardoso, Carlos Rogério Ladislau
Abstract Aim: This study contextualizes the establishment of Montes Claros Sports Square, in Minas Gerais, through the look of Gazeta do Norte newspaper, and its alignment with a nation project to be established by the government of Getulio Vargas, who took office in 1930. He formulated actions for a ‘national reconstruction’ project, for which, from society, it was necessary to emerge both physically and morally healthy subjects, fundamental conditions for the construction of the aforementioned new nation, and which could reach the Brazilians in the hinterlands. Thus, this study aimed to narrate a history of the construction of Montes Claros Sports Square, from the end of the 1930s until 1945, during Getulio Vargas’ first term as President of the Republic, with Benedito Valadares as Governor of Minas Gerais. Methods: The study was based on the extensive collection of data researched in Gazeta do Norte newspaper. Results: Symbol of a modern project for sports, the Sports Square was announced by the governor during his visit to the city, in January 1939, and established on the Oswaldo Cruz meadow. It is possible to verify that, notably, in the 15 years of Getulio Vargas’ first term, the practice of sports is developed and consolidates itself as an ‘actor’ in the social space of Montes Claros. Conclusion: In this city, in addition to the construction of the Sports Square, it was necessary to educate and inform the individuals. It can be said that the newspaper Gazeta do Norte firmly contributed to Vargas’ nation project.
摘要目的:本研究以米纳斯吉拉斯州《北方报》(Gazeta do Norte)为背景，考察其与1930年上任的格图里奥·巴尔加斯(Getulio Vargas)政府建立的国家项目的关系。他制定了一项"国家重建"计划的行动，为此，必须从社会中产生身体和道德健康的主体，这是建设上述新国家的基本条件，并且可以影响到内陆的巴西人。因此，本研究旨在叙述蒙特斯克拉罗斯体育广场的建设历史，从20世纪30年代末到1945年，在Getulio Vargas担任共和国总统的第一个任期内，Benedito Valadares担任米纳斯吉拉斯州州长。方法:本研究是基于广泛收集的资料，研究在Gazeta do Norte报纸。结果:作为现代体育项目的象征，体育广场于1939年1月由州长在访问城市期间宣布，并建立在奥斯瓦尔多克鲁兹草地上。值得注意的是，在Getulio Vargas第一个任期的15年里，体育实践得到了发展，并在蒙特斯克拉罗斯的社会空间中巩固了自己作为“演员”的地位。结论:在这个城市，除了体育广场的建设外，还需要对个人进行教育和宣传。可以说，《北方报》对巴尔加斯的国家计划做出了坚定的贡献。
{"title":"Gazeta do Norte newspaper and the great Sports Square as nation projects: ‘Mold for Tomorrow's Men!’","authors":"Rogério Othon Teixeira Alves, Luciano Pereira da Silva, E. Pereira, Georgino Jorge de Souza Neto, Fernanda de Souza Cardoso, Carlos Rogério Ladislau","doi":"10.1590/S1980-65742021007121","DOIUrl":"https://doi.org/10.1590/S1980-65742021007121","url":null,"abstract":"Abstract Aim: This study contextualizes the establishment of Montes Claros Sports Square, in Minas Gerais, through the look of Gazeta do Norte newspaper, and its alignment with a nation project to be established by the government of Getulio Vargas, who took office in 1930. He formulated actions for a ‘national reconstruction’ project, for which, from society, it was necessary to emerge both physically and morally healthy subjects, fundamental conditions for the construction of the aforementioned new nation, and which could reach the Brazilians in the hinterlands. Thus, this study aimed to narrate a history of the construction of Montes Claros Sports Square, from the end of the 1930s until 1945, during Getulio Vargas’ first term as President of the Republic, with Benedito Valadares as Governor of Minas Gerais. Methods: The study was based on the extensive collection of data researched in Gazeta do Norte newspaper. Results: Symbol of a modern project for sports, the Sports Square was announced by the governor during his visit to the city, in January 1939, and established on the Oswaldo Cruz meadow. It is possible to verify that, notably, in the 15 years of Getulio Vargas’ first term, the practice of sports is developed and consolidates itself as an ‘actor’ in the social space of Montes Claros. Conclusion: In this city, in addition to the construction of the Sports Square, it was necessary to educate and inform the individuals. It can be said that the newspaper Gazeta do Norte firmly contributed to Vargas’ nation project.","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125394954","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 : 2021-06-09DOI: 10.1590/S1980-657420210004621
L. Figueiredo, D. Silva, Bruno Henrique Góes Oliveira, Arthur Gomes Ferreira, Petrus Gantois, F. Fonseca
Abstract Aim: This study investigated the Relative Age Effect (RAE) in Brazilian track and field athletes based on sex, age category (U-16, U-18, U-20, U-23 and senior), and event type (sprints/hurdles, middle distance, long-distance, jumps, throws). Methods: Data from 2.259 male and 1.776 female elite track and field athletes, ranked top-50 in events held by the Brazilian Track and Field Confederation in 2019 were analyzed. To determine RAE athletes were divided into four quarters based on their months of birth, considering January 1st the cut-off date. The influence of sex, age category, and event types in the pervasion of RAE in Brazilian track and field athletes was assessed through Chi-squared tests. Results: Athletes born closer to the cut-off date were more frequent than athletes born further from this date were in male youth categories. This effect reduced as categories increased, even reversing in the senior category. Finally, RAE was more frequent in events in which athletic performance relies more on strength, speed, and power, which is the case of sprints/hurdles, jumps, and throws. Conclusion: RAE is particularly prevalent in young male Brazilian track and field athletes, which indicates that many potentially talented athletes are overlooked in youth tryouts because they were born months away from the cut-off date. Policies that reduce the disadvantages faced by relatively younger athletes are warranted in order to avoid the loss of potential sports talents.
{"title":"Relative age effects in elite Brazilian track and field athletes are modulated by sex, age category, and event type","authors":"L. Figueiredo, D. Silva, Bruno Henrique Góes Oliveira, Arthur Gomes Ferreira, Petrus Gantois, F. Fonseca","doi":"10.1590/S1980-657420210004621","DOIUrl":"https://doi.org/10.1590/S1980-657420210004621","url":null,"abstract":"Abstract Aim: This study investigated the Relative Age Effect (RAE) in Brazilian track and field athletes based on sex, age category (U-16, U-18, U-20, U-23 and senior), and event type (sprints/hurdles, middle distance, long-distance, jumps, throws). Methods: Data from 2.259 male and 1.776 female elite track and field athletes, ranked top-50 in events held by the Brazilian Track and Field Confederation in 2019 were analyzed. To determine RAE athletes were divided into four quarters based on their months of birth, considering January 1st the cut-off date. The influence of sex, age category, and event types in the pervasion of RAE in Brazilian track and field athletes was assessed through Chi-squared tests. Results: Athletes born closer to the cut-off date were more frequent than athletes born further from this date were in male youth categories. This effect reduced as categories increased, even reversing in the senior category. Finally, RAE was more frequent in events in which athletic performance relies more on strength, speed, and power, which is the case of sprints/hurdles, jumps, and throws. Conclusion: RAE is particularly prevalent in young male Brazilian track and field athletes, which indicates that many potentially talented athletes are overlooked in youth tryouts because they were born months away from the cut-off date. Policies that reduce the disadvantages faced by relatively younger athletes are warranted in order to avoid the loss of potential sports talents.","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132291102","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 : 2021-05-31DOI: 10.1590/S1980-65742021021520
Karen Christie Gomes Sales, Marcos Antônio Pereira Santos, F. Nakamura, V. O. Silvino, A. F. Sena, S. L. Ribeiro, Jefferson Fernando Coelho Rodrigues Júnior, C. E. Cabido, T. Mendes
Abstract Aim: To evaluate the intensity of training and official badminton matches (international championship) in junior elite players. Methods: Twelve elite players from the Brazilian junior national team (6 male and 6 female) were monitored during 19 training sessions and 50 official men's and women's single and double matches in the XXVII Pan-American Junior Games. Subjects underwent an incremental running step test to determine maximal oxygen uptake (VO2max), and an individual relationship between heart rate (HR) and VO2max was established to estimate exercise intensity and oxygen uptake at official matches (OMs) and training sessions. HR was monitored during multi-shuttlecock (MS), technical-tactical (TT), and physical (PS) training methods, as well as during simulated matches (SMs) and OMs. Variables such as %HRmax, HR zones, %VO2max, and energy expenditure were also calculated. Results: OM was the most intense activity monitored for male and female athletes, followed by SM according to %HRmax (86.8 ± 4.1% and 84.4 ± 5.0% for female and male, respectively, in OM vs. 74.6 ± 2.3% and 75.0 ± 5.0% for female and male, respectively, in SM). OM mean energy expenditure was 10.7 ± 0.5 kcal.min-1 for females and 14.9 ± 4.6 kcal.min−1 for males. Conclusion: MS training has less physiological demand and OM presented higher intensity. SM, on the other hand, had the closest physiological demand to an OM.
{"title":"Official matches and training sessions: physiological demands of elite junior badminton players","authors":"Karen Christie Gomes Sales, Marcos Antônio Pereira Santos, F. Nakamura, V. O. Silvino, A. F. Sena, S. L. Ribeiro, Jefferson Fernando Coelho Rodrigues Júnior, C. E. Cabido, T. Mendes","doi":"10.1590/S1980-65742021021520","DOIUrl":"https://doi.org/10.1590/S1980-65742021021520","url":null,"abstract":"Abstract Aim: To evaluate the intensity of training and official badminton matches (international championship) in junior elite players. Methods: Twelve elite players from the Brazilian junior national team (6 male and 6 female) were monitored during 19 training sessions and 50 official men's and women's single and double matches in the XXVII Pan-American Junior Games. Subjects underwent an incremental running step test to determine maximal oxygen uptake (VO2max), and an individual relationship between heart rate (HR) and VO2max was established to estimate exercise intensity and oxygen uptake at official matches (OMs) and training sessions. HR was monitored during multi-shuttlecock (MS), technical-tactical (TT), and physical (PS) training methods, as well as during simulated matches (SMs) and OMs. Variables such as %HRmax, HR zones, %VO2max, and energy expenditure were also calculated. Results: OM was the most intense activity monitored for male and female athletes, followed by SM according to %HRmax (86.8 ± 4.1% and 84.4 ± 5.0% for female and male, respectively, in OM vs. 74.6 ± 2.3% and 75.0 ± 5.0% for female and male, respectively, in SM). OM mean energy expenditure was 10.7 ± 0.5 kcal.min-1 for females and 14.9 ± 4.6 kcal.min−1 for males. Conclusion: MS training has less physiological demand and OM presented higher intensity. SM, on the other hand, had the closest physiological demand to an OM.","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126406937","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 : 2021-05-24DOI: 10.1590/S1980-65742021020921
Paulo Henrique Aleixo, Robson Chacon Castoldi, F. Souza, T. B. Mariano, G. Ozaki, Thiago Alves Garcia, Lucas Silva Santos, F. Pacagnelli, R. Camargo, José Carlos Silva Camargo Filho
Abstract Aim: This study aimed to evaluate the effect of High-Intensity Interval Training (HIIT) on the skeletal muscle of Spontaneously Hypertensive Rats (SHR). Method: In total, 20 male rats, SHR, 12 months old, were used, distributed into 2 groups: Control Group (C) and Training Group (HIIT). The training lasted approximately 50 minutes/day, 5 days/week, for 8 weeks. Systolic blood pressure (BP) was measured at the beginning and end of the study. Analysis: The medial gastrocnemius muscle was used to measure the smallest fiber diameter, after which the Shapiro-Wilk normality test was performed, followed by the Mann Whitney test to compare the medians and interquartile intervals (IQI) of the muscle fibers and Student t-test for performance. For analysis of BP, Analysis of Variance - ANOVA was used, followed by Tukey's post-test. All procedures adopted a significance value of 5% (p < 0.05). Results: The median values for the variable “smallest diameter” of muscle fibers were 29.48 (IQI: 9.96) µm in the C group and 33.45 (IQI: 9.44) µm in the HIIT group (p < 0.05). Also, the performance was increased in the trained animal group and blood pressure values decreased significantly at the end of the experiment (p < 0.05). Conclusion: The HIIT intensity promoted an increase in the median values of the muscle fibers and performance. Finally, a significant decrease was observed in blood pressure variation values.
{"title":"Effect of high-intensity interval training on the skeletal muscle of spontaneously hypertensive rats","authors":"Paulo Henrique Aleixo, Robson Chacon Castoldi, F. Souza, T. B. Mariano, G. Ozaki, Thiago Alves Garcia, Lucas Silva Santos, F. Pacagnelli, R. Camargo, José Carlos Silva Camargo Filho","doi":"10.1590/S1980-65742021020921","DOIUrl":"https://doi.org/10.1590/S1980-65742021020921","url":null,"abstract":"Abstract Aim: This study aimed to evaluate the effect of High-Intensity Interval Training (HIIT) on the skeletal muscle of Spontaneously Hypertensive Rats (SHR). Method: In total, 20 male rats, SHR, 12 months old, were used, distributed into 2 groups: Control Group (C) and Training Group (HIIT). The training lasted approximately 50 minutes/day, 5 days/week, for 8 weeks. Systolic blood pressure (BP) was measured at the beginning and end of the study. Analysis: The medial gastrocnemius muscle was used to measure the smallest fiber diameter, after which the Shapiro-Wilk normality test was performed, followed by the Mann Whitney test to compare the medians and interquartile intervals (IQI) of the muscle fibers and Student t-test for performance. For analysis of BP, Analysis of Variance - ANOVA was used, followed by Tukey's post-test. All procedures adopted a significance value of 5% (p < 0.05). Results: The median values for the variable “smallest diameter” of muscle fibers were 29.48 (IQI: 9.96) µm in the C group and 33.45 (IQI: 9.44) µm in the HIIT group (p < 0.05). Also, the performance was increased in the trained animal group and blood pressure values decreased significantly at the end of the experiment (p < 0.05). Conclusion: The HIIT intensity promoted an increase in the median values of the muscle fibers and performance. Finally, a significant decrease was observed in blood pressure variation values.","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133488064","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 : 2018-11-08DOI: 10.1590/S1980-6574201800040002
John Koumantareas, Rogério Cruz de Oliveira
{"title":"Sports and health from the perspective of physical education professionals","authors":"John Koumantareas, Rogério Cruz de Oliveira","doi":"10.1590/S1980-6574201800040002","DOIUrl":"https://doi.org/10.1590/S1980-6574201800040002","url":null,"abstract":"","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127225697","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 : 2018-05-28DOI: 10.1590/S1980-6574201800020004
S. Smaili, M. E. B. Bueno, Natália Mariano Barboza, M. B. Terra, I. Almeida, H. Ferraz
Aims: to compare the efficacy of neurofunctional training versus resistance training in improving gait and quality of life among patients with PD. Methods: This randomized controlled trial included 40 participants randomly assigned to two groups through random number table generator: resistance training (RT) (n=19) and neurofunctional training (NT) (n=21). The RT group performed resistance exercises emphasizing the lower limbs and trunk, while the NT group sessions were focused on gait, functional independence and balance training. Trained physical therapists supervised both groups. The training sessions lasted 60 minutes in each group and were performed twice a week, totalizing 24 sessions. The outcomes, gait and quality of life, were measured using video gait analysis and footprint analysis; and PDQL and PDQ-39 questionnaires, respectively. Results: intra-group comparison revealed all gait variables (stride length, step length, number of steps, time of distance walked, gait speed and cadence) improved after the NT intervention with large effect size, while only stride length improved in the RT group with moderate effect size. The between group analyses means (Δ) shows that all the variables presented statistically significant differences in the NT group. Additionally, both groups showed significant improvements in quality of life. Conclusions: The application of specific neurofunctional training, directed and enriched with sensorial resources, resulted in superior gait performance among individuals with PD when compared to those in the resistance training group; both treatments were efficacious in improving quality of life.
{"title":"Efficacy of neurofunctional versus resistance training in improving gait and quality of life among patients with Parkinson’s disease: a randomized clinical trial","authors":"S. Smaili, M. E. B. Bueno, Natália Mariano Barboza, M. B. Terra, I. Almeida, H. Ferraz","doi":"10.1590/S1980-6574201800020004","DOIUrl":"https://doi.org/10.1590/S1980-6574201800020004","url":null,"abstract":"Aims: to compare the efficacy of neurofunctional training versus resistance training in improving gait and quality of life among patients with PD. Methods: This randomized controlled trial included 40 participants randomly assigned to two groups through random number table generator: resistance training (RT) (n=19) and neurofunctional training (NT) (n=21). The RT group performed resistance exercises emphasizing the lower limbs and trunk, while the NT group sessions were focused on gait, functional independence and balance training. Trained physical therapists supervised both groups. The training sessions lasted 60 minutes in each group and were performed twice a week, totalizing 24 sessions. The outcomes, gait and quality of life, were measured using video gait analysis and footprint analysis; and PDQL and PDQ-39 questionnaires, respectively. Results: intra-group comparison revealed all gait variables (stride length, step length, number of steps, time of distance walked, gait speed and cadence) improved after the NT intervention with large effect size, while only stride length improved in the RT group with moderate effect size. The between group analyses means (Δ) shows that all the variables presented statistically significant differences in the NT group. Additionally, both groups showed significant improvements in quality of life. Conclusions: The application of specific neurofunctional training, directed and enriched with sensorial resources, resulted in superior gait performance among individuals with PD when compared to those in the resistance training group; both treatments were efficacious in improving quality of life.","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126745993","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 : 2018-05-17DOI: 10.1590/S1980-6574201800020002
Jorge Lopes Cavalcante Neto, T. Sato, E. Tudella
Aim: The objective of this study was to identify socio-demographic factors that are associated with the guardians’ perception of developmental coordination disorder among schoolchildren from seven to ten years old. Methods: The parents/guardians of 361 children completed the Developmental Coordination Disorder Questionnaire (DCDQ) and a socio-demographic questionnaire in this cross-sectional study. The univariate relationship between the DCDQ and sociodemographic factors was tested by the chi-square test. The odds ratio (OR) with 95% confidence interval was calculated. Socio-demographic variables with p≤0.20 were included in the logistic regression analysis. Results: The child’s age (B = 0.40; OR = 1.49; p <0.01) and the guardian undergoing treatment for illness (B = 0.97; OR = 2.65; p = 0.02) were retained in the final regression model. Conclusion: Thus, increasing children’s’ age and guardians undergoing treatment for illness increased the guardians’perception of developmental coordination disorder.
{"title":"Socio-demographic factors influences on guardians’ perception of Developmental Coordination Disorder among Brazilian schoolchildren","authors":"Jorge Lopes Cavalcante Neto, T. Sato, E. Tudella","doi":"10.1590/S1980-6574201800020002","DOIUrl":"https://doi.org/10.1590/S1980-6574201800020002","url":null,"abstract":"Aim: The objective of this study was to identify socio-demographic factors that are associated with the guardians’ perception of developmental coordination disorder among schoolchildren from seven to ten years old. Methods: The parents/guardians of 361 children completed the Developmental Coordination Disorder Questionnaire (DCDQ) and a socio-demographic questionnaire in this cross-sectional study. The univariate relationship between the DCDQ and sociodemographic factors was tested by the chi-square test. The odds ratio (OR) with 95% confidence interval was calculated. Socio-demographic variables with p≤0.20 were included in the logistic regression analysis. Results: The child’s age (B = 0.40; OR = 1.49; p <0.01) and the guardian undergoing treatment for illness (B = 0.97; OR = 2.65; p = 0.02) were retained in the final regression model. Conclusion: Thus, increasing children’s’ age and guardians undergoing treatment for illness increased the guardians’perception of developmental coordination disorder.","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"43 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133558458","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 : 2018-05-17DOI: 10.1590/S1980-6574201800010014
W. Beck, L. Messias, Franciele Ruiz da Silva, F. Manchado-Gobatto, C. Gobatto
Aims: This study is aimed at testing the acute melatonin administration (oral; 6 mg) on aerobic tolerance at cycloergometer and analyzing the consequences on biochemical and hematological parameters. Methods: The maximal aerobic capacity intensity (iMAC) at cycloergometer of eleven male healthy men (24.18±3.92 years-old; 87.07±12.48 kg; 1.82±0.05 m; 26.18±3.63 kg/m2; and 16.28±5.77 % of fat) was individually determined and used to perform a time to exhaustion (tlim) trial of 30 minutes after melatonin or placebo administration. We observed 4872h interval between tests, performed in a double-blind experiment design. In order to determine hematological and biochemical parameters we collected venous blood samples before and after tlim. Statistical significance was set at 5%. Results: The intensity and the lactatemia corresponding to the maximal aerobic capacity were 120.88±18.78 W and 3.32±1.03 mmol.L-1, respectively. The tlim with placebo (33.94±15.26 min, confidence interval = 24.92 42.95) was significantly lower than the tlim with melatonin (41.94±17.22 min; CI = 31.76 52.12; p = 0.03; 19.06%; effect size = 0.49). All of the 21 analyzed blood physiological variables resulted in no significant variation after tlim when placebo was compared to melatonin, except for total sera cholesterol (lower after exercise with melatonin). Conclusion: Acute melatonin administration enhanced aerobic tolerance at iMAC in 19% at cycloergometer; however, the biochemical and hematological variables assessed were not significantly modulated.
{"title":"Acute melatonin administration enhances aerobic tolerance: an analysis of biochemical and hematological parameters","authors":"W. Beck, L. Messias, Franciele Ruiz da Silva, F. Manchado-Gobatto, C. Gobatto","doi":"10.1590/S1980-6574201800010014","DOIUrl":"https://doi.org/10.1590/S1980-6574201800010014","url":null,"abstract":"Aims: This study is aimed at testing the acute melatonin administration (oral; 6 mg) on aerobic tolerance at cycloergometer and analyzing the consequences on biochemical and hematological parameters. Methods: The maximal aerobic capacity intensity (iMAC) at cycloergometer of eleven male healthy men (24.18±3.92 years-old; 87.07±12.48 kg; 1.82±0.05 m; 26.18±3.63 kg/m2; and 16.28±5.77 % of fat) was individually determined and used to perform a time to exhaustion (tlim) trial of 30 minutes after melatonin or placebo administration. We observed 4872h interval between tests, performed in a double-blind experiment design. In order to determine hematological and biochemical parameters we collected venous blood samples before and after tlim. Statistical significance was set at 5%. Results: The intensity and the lactatemia corresponding to the maximal aerobic capacity were 120.88±18.78 W and 3.32±1.03 mmol.L-1, respectively. The tlim with placebo (33.94±15.26 min, confidence interval = 24.92 42.95) was significantly lower than the tlim with melatonin (41.94±17.22 min; CI = 31.76 52.12; p = 0.03; 19.06%; effect size = 0.49). All of the 21 analyzed blood physiological variables resulted in no significant variation after tlim when placebo was compared to melatonin, except for total sera cholesterol (lower after exercise with melatonin). Conclusion: Acute melatonin administration enhanced aerobic tolerance at iMAC in 19% at cycloergometer; however, the biochemical and hematological variables assessed were not significantly modulated.","PeriodicalId":267352,"journal":{"name":"Motriz-revista De Educacao Fisica","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125367329","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 : 2018-04-09DOI: 10.1590/S1980-6574201800020008
Robyn L. Jones, Gethin L. Thomas, Rodrigo Lima Nunes, I. A. T. V. Filho
This article was published in Motriz: Revista de Educacao Fisica on 9 April 2018 available open access at http://dx.doi.org/10.1590/s1980-6574201800020008
本文于2018年4月9日发表于Motriz: Revista de Educacao Fisica，可通过http://dx.doi.org/10.1590/s1980-6574201800020008开放获取
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