Pub Date : 2020-12-02DOI: 10.1590/1980-0037.2020v22e74881
Mariana Oliveira, D. R. Queiroz, Marlene Costa, Arthur Henrique da Silva, José Raphael Leandro da Costa Silva, M. C. Correia Júnior, W. V. Melo, J. C. F. Farias Júnior, M. Santos
Abstract This study aimed to estimate the propulsive force of the arm (PFA) in young freestyle swimmers and propose an equation to estimate propulsive force, considering anthropometric variables and maturity offset. Seventy-six competitive swimmers [boys: n= 53; age= 13.58 ± 1.79; girls: n= 23; age= 12.98 ± 1.79] participated in this study. Height, lean mass, sitting height, leg length, arm span, triceps skinfold, arm muscle area (AMA), and maturity offset were assessed. The propulsive force of the arm was measured by the tethered swim test. A multiple linear regression (concurrent model) was used to develop the equation using the variables AMA, arm span, and maturity offset. The Bland–Altman method was used to compare the values found between PFA and propulsive force–estimated (PFE). There was a significant correlation between the variables PFA and AMA (R²=0.12; p<0.01), arm span (R²=0.21; p<0.01), and maturity offset (R²=0.20; p<0.01) for boys, whilst in girls theses values were: AMA (R²=0.07;p=0.20), arm span (R²=0.50;p<0.01), and maturity offset (R²=0.44;p<0.01). Two linear equations were established to predict the PFA in boys and girls Bland-Altman analysis showed an agreement between PFA and PFE. In conclusion, the equation is a valuable tool to monitor training and help improve swimmer performance.
{"title":"Body segments and biological maturation to estimate the propulsive force of the arm in young swimmers","authors":"Mariana Oliveira, D. R. Queiroz, Marlene Costa, Arthur Henrique da Silva, José Raphael Leandro da Costa Silva, M. C. Correia Júnior, W. V. Melo, J. C. F. Farias Júnior, M. Santos","doi":"10.1590/1980-0037.2020v22e74881","DOIUrl":"https://doi.org/10.1590/1980-0037.2020v22e74881","url":null,"abstract":"Abstract This study aimed to estimate the propulsive force of the arm (PFA) in young freestyle swimmers and propose an equation to estimate propulsive force, considering anthropometric variables and maturity offset. Seventy-six competitive swimmers [boys: n= 53; age= 13.58 ± 1.79; girls: n= 23; age= 12.98 ± 1.79] participated in this study. Height, lean mass, sitting height, leg length, arm span, triceps skinfold, arm muscle area (AMA), and maturity offset were assessed. The propulsive force of the arm was measured by the tethered swim test. A multiple linear regression (concurrent model) was used to develop the equation using the variables AMA, arm span, and maturity offset. The Bland–Altman method was used to compare the values found between PFA and propulsive force–estimated (PFE). There was a significant correlation between the variables PFA and AMA (R²=0.12; p<0.01), arm span (R²=0.21; p<0.01), and maturity offset (R²=0.20; p<0.01) for boys, whilst in girls theses values were: AMA (R²=0.07;p=0.20), arm span (R²=0.50;p<0.01), and maturity offset (R²=0.44;p<0.01). Two linear equations were established to predict the PFA in boys and girls Bland-Altman analysis showed an agreement between PFA and PFE. In conclusion, the equation is a valuable tool to monitor training and help improve swimmer performance.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"95 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86156890","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 : 2020-12-02DOI: 10.1590/1980-0037.2020v22e55697
Andressa Formalioni, B. Antunez, F. D. Vecchio, L. Cabistany, V. Coswig, R. Letieri, D. Fukuda
Abstract The purpose of this investigation was to measure anthropometric and physical performance variables of TKD athletes from the city of Pelotas - RS. Forty-five athletes aged 16.4 ± 5.2 years and time of practice of 3.25 ± 3.6 years were evaluated. Athletes performed anthropometric evaluation and physical, general and specific performance tests. In the sum of seven skin folds, men presented lower values ??(106.1 ± 49.5 mm versus 143.4 ± 43.2 mm, p <0.002). Male seniors presented better performance in the vertical jump compared to beginners (42.3 ± 8.5cm versus 24.8 ± 10.1cm, p <0.03) and to women (22.1 ± 4.3cm, p <0.03). Graduated individuals perform higher number of arm pushups than beginners and women and more repetitions in the abdominal test. Male junior and senior athletes had higher isometric handgrip strength than females (48.3 ± 3.9 kgf and 38.1 ± 12.6 kgf versus 29 ± 5.6 kgf, p <0.001). Men covered longer distance in the yo-yo test than women (606.6 ± 233.8m versus 200 ± 113.1m, p <0.001). In the Wingate test, men produced greater peak and average relative power. No differences in flexibility were observed. In the single kick test, seniors kicked faster than less experienced athletes (200.6 ± 12.3m / s versus 258 ± 5.6m / s, p <0.001) and performed greater number of kicks in the 21s, 6 ± 2.1 reps versus 15.5 ± 0.7 reps, p <0.001). It was concluded that there are differences between male and female TKD athletes regarding anthropometric and motor characteristics, and that more experienced athletes exhibit greater general and specific physical fitness.
摘要本研究旨在对来自佩洛塔斯- RS市的45名年龄为16.4±5.2岁、训练时间为3.25±3.6年的TKD运动员进行人体测量和体能指标的评估。运动员进行了人体测量评估和身体、一般和特定性能测试。在7个皮肤褶皱的总和中，男性的值更低(106.1±49.5 mm比143.4±43.2 mm, p <0.002)。老年人男性跳远成绩优于初学者(42.3±8.5cm vs . 24.8±10.1cm, p <0.03)和女性跳远成绩优于初学者(22.1±4.3cm, p <0.03)。毕业的个体比初学者和女性做更多的手臂俯卧撑，在腹部测试中做更多的重复。男性青少年和老年运动员的等长握力高于女性(48.3±3.9 kgf和38.1±12.6 kgf比29±5.6 kgf, p <0.001)。在溜溜球测试中，男性比女性跑得更远(606.6±233.8m比200±113.1m, p <0.001)。在温盖特测试中，男性产生了更高的峰值和平均相对力量。在柔韧性方面没有观察到差异。在单次踢腿测试中，老年人比经验不足的运动员踢得更快(200.6±12.3m / s比258±5.6m / s, p <0.001)，并且在21秒内进行更多的踢腿次数，6±2.1次比15.5±0.7次，p <0.001)。结论是，男性和女性TKD运动员在人体测量和运动特征方面存在差异，经验丰富的运动员表现出更强的一般和特定身体素质。
{"title":"Anthropometric characteristics and physical performance of taekwondo athletes","authors":"Andressa Formalioni, B. Antunez, F. D. Vecchio, L. Cabistany, V. Coswig, R. Letieri, D. Fukuda","doi":"10.1590/1980-0037.2020v22e55697","DOIUrl":"https://doi.org/10.1590/1980-0037.2020v22e55697","url":null,"abstract":"Abstract The purpose of this investigation was to measure anthropometric and physical performance variables of TKD athletes from the city of Pelotas - RS. Forty-five athletes aged 16.4 ± 5.2 years and time of practice of 3.25 ± 3.6 years were evaluated. Athletes performed anthropometric evaluation and physical, general and specific performance tests. In the sum of seven skin folds, men presented lower values ??(106.1 ± 49.5 mm versus 143.4 ± 43.2 mm, p <0.002). Male seniors presented better performance in the vertical jump compared to beginners (42.3 ± 8.5cm versus 24.8 ± 10.1cm, p <0.03) and to women (22.1 ± 4.3cm, p <0.03). Graduated individuals perform higher number of arm pushups than beginners and women and more repetitions in the abdominal test. Male junior and senior athletes had higher isometric handgrip strength than females (48.3 ± 3.9 kgf and 38.1 ± 12.6 kgf versus 29 ± 5.6 kgf, p <0.001). Men covered longer distance in the yo-yo test than women (606.6 ± 233.8m versus 200 ± 113.1m, p <0.001). In the Wingate test, men produced greater peak and average relative power. No differences in flexibility were observed. In the single kick test, seniors kicked faster than less experienced athletes (200.6 ± 12.3m / s versus 258 ± 5.6m / s, p <0.001) and performed greater number of kicks in the 21s, 6 ± 2.1 reps versus 15.5 ± 0.7 reps, p <0.001). It was concluded that there are differences between male and female TKD athletes regarding anthropometric and motor characteristics, and that more experienced athletes exhibit greater general and specific physical fitness.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87258205","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 : 2020-12-02DOI: 10.1590/1980-0037.2020v22e67473
Luis Eduardo Tietzmann, Emanoel Adão Pacheco, Hélio Roesler, S. Pereira
Abstract This research aimed to verify whether the number of airplanes run by surfers in the 2016 Word Surf League (WSL) men's season and their grades were related to their final classification in the events and season. Were viewed 3475 waves from 49 surfers and selected for analysis 275 waves. Spearman's correlation test, one-way ANOVA, and t-test, with p?0.05, were used for statistical analysis. The air proved to be an effective maneuver in isolated clashes, helped to reach the finals and decide events, but did not prove to be the main determinant of the season's final standings. The average of the marks attributed to the reverse 360 ??aerial was significantly higher than the notes attributed to the reverse aerial, however, the variables the position of the surfer in front or back to wave and whether or not to grab the board edge did not present significant differences.
摘要本研究旨在验证2016世界冲浪联盟(world Surf League, WSL)男子赛季中冲浪者驾驶飞机的数量及其成绩是否与他们在赛事和赛季中的最终排名有关。我们查看了49个冲浪者的3475个波浪，并选择了275个波浪进行分析。统计学分析采用Spearman相关检验、单因素方差分析和t检验，p < 0.05。在孤立的冲突中，空气被证明是一种有效的策略，有助于进入决赛并决定比赛，但并不是赛季最终排名的主要决定因素。逆向360的平均分数?空中架空的得分明显高于反向空中架空的得分，然而，冲浪者在波浪前或波浪后的位置以及是否抓住板边等变量并没有表现出显著差异。
{"title":"Aerials and their influence on World Surfing League surfer performance (WSL flights)","authors":"Luis Eduardo Tietzmann, Emanoel Adão Pacheco, Hélio Roesler, S. Pereira","doi":"10.1590/1980-0037.2020v22e67473","DOIUrl":"https://doi.org/10.1590/1980-0037.2020v22e67473","url":null,"abstract":"Abstract This research aimed to verify whether the number of airplanes run by surfers in the 2016 Word Surf League (WSL) men's season and their grades were related to their final classification in the events and season. Were viewed 3475 waves from 49 surfers and selected for analysis 275 waves. Spearman's correlation test, one-way ANOVA, and t-test, with p?0.05, were used for statistical analysis. The air proved to be an effective maneuver in isolated clashes, helped to reach the finals and decide events, but did not prove to be the main determinant of the season's final standings. The average of the marks attributed to the reverse 360 ??aerial was significantly higher than the notes attributed to the reverse aerial, however, the variables the position of the surfer in front or back to wave and whether or not to grab the board edge did not present significant differences.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87228103","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 : 2020-12-02DOI: 10.1590/1980-0037.2020v22e72115
M. Gómez-López, S. Angosto, A. Antúnez
Abstract The performance of goalkeepers can predict the final ranking of teams in tournaments. The aim of the study was to examine the percentages of goalkeepers of different national teams, according to the position on the field from which the pitch was taken, the location of the pitch in the goal and the ranking of the game. To this end, a documentary study based on the data collected by the International Handball Federation was carried out with 24 national teams that took part in the last absolute handball world championship (Germany 2017). The sample consisted of 7606 pitches made in 83 matches. The results showed that the highest percentage of saves was obtained with shots taken from the 9 meters and to the central and middle zone of the goal, and the lowest with throws in fast-breaks and to the lower and lateral areas of the goal. There were no significant differences in the variables analyzed according to the game ranking, except in pitching zone 1.
{"title":"Efficiency of the goalkeepers in the women’s World Handball Championship in Germany 2017","authors":"M. Gómez-López, S. Angosto, A. Antúnez","doi":"10.1590/1980-0037.2020v22e72115","DOIUrl":"https://doi.org/10.1590/1980-0037.2020v22e72115","url":null,"abstract":"Abstract The performance of goalkeepers can predict the final ranking of teams in tournaments. The aim of the study was to examine the percentages of goalkeepers of different national teams, according to the position on the field from which the pitch was taken, the location of the pitch in the goal and the ranking of the game. To this end, a documentary study based on the data collected by the International Handball Federation was carried out with 24 national teams that took part in the last absolute handball world championship (Germany 2017). The sample consisted of 7606 pitches made in 83 matches. The results showed that the highest percentage of saves was obtained with shots taken from the 9 meters and to the central and middle zone of the goal, and the lowest with throws in fast-breaks and to the lower and lateral areas of the goal. There were no significant differences in the variables analyzed according to the game ranking, except in pitching zone 1.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89812125","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 : 2020-12-02DOI: 10.1590/1980-0037.2020v22e72114
David Mancha-Triguero, Sergio González-Espinosa, Luis G. Córdoba, J. García-Rubio, S. Feu
Abstract Handball is one of the most practiced team sports worldwide that consists of different modalities, with the aim of reaching as many users as possible. One of the modalities with increasing interest in the last years is Beach Handball, as it takes the advantage of the absence of competitive calendar in the standardized modality so that users continue practicing. A comparative analysis was performed between standard handball (indoor) and beach handball athletes in order to determine the demands of both modalities and determine if they are similar. The competition was evaluated by analyzing external load variables: number of steps, jumps, impacts and Player load. The selected sample was composed of U-16 players from both modalities. Each player was equipped with WIMUTM inertial device. The results showed that the standard modality requires greater physical demands than the beach modality. For this reason, the physical demands of the different modalities require different training processes to obtain the best possible results in the competition.
{"title":"Differences in the physical demands between handball and beach handball players","authors":"David Mancha-Triguero, Sergio González-Espinosa, Luis G. Córdoba, J. García-Rubio, S. Feu","doi":"10.1590/1980-0037.2020v22e72114","DOIUrl":"https://doi.org/10.1590/1980-0037.2020v22e72114","url":null,"abstract":"Abstract Handball is one of the most practiced team sports worldwide that consists of different modalities, with the aim of reaching as many users as possible. One of the modalities with increasing interest in the last years is Beach Handball, as it takes the advantage of the absence of competitive calendar in the standardized modality so that users continue practicing. A comparative analysis was performed between standard handball (indoor) and beach handball athletes in order to determine the demands of both modalities and determine if they are similar. The competition was evaluated by analyzing external load variables: number of steps, jumps, impacts and Player load. The selected sample was composed of U-16 players from both modalities. Each player was equipped with WIMUTM inertial device. The results showed that the standard modality requires greater physical demands than the beach modality. For this reason, the physical demands of the different modalities require different training processes to obtain the best possible results in the competition.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67276359","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 : 2020-11-26DOI: 10.1590/1980-0037.2020v22e76584
C. Brito, E. Aedo-Muñoz, B. Miarka
Abstract In such a competitive combat sport as judo, it is important that the training is carefully planned so that the athlete can stand out in the international competition. In this context, it is important that the trainer and evaluator are accurate regarding the measures taken of the athlete. Such measures, when correctly performed, can prepare the trainer with tools that allow prescribing contextualized training. The present point of view will show how kinanthropometric variables can be considered by coaches and evaluators when performing technical-tactical and biomechanical analysis in judo athletes. There are differences between sex and weight divisions as to the actions that are prevalent in each one of the categories. Lighter divisions performances must have specific training regarding approach and gripping. Attention should be paid to anticipation in athletes of the light and middle divisions. The rating of force development is the most important biomechanical measure.
{"title":"Judo performance: kinanthropometric importance for technical tactical and biomechanics","authors":"C. Brito, E. Aedo-Muñoz, B. Miarka","doi":"10.1590/1980-0037.2020v22e76584","DOIUrl":"https://doi.org/10.1590/1980-0037.2020v22e76584","url":null,"abstract":"Abstract In such a competitive combat sport as judo, it is important that the training is carefully planned so that the athlete can stand out in the international competition. In this context, it is important that the trainer and evaluator are accurate regarding the measures taken of the athlete. Such measures, when correctly performed, can prepare the trainer with tools that allow prescribing contextualized training. The present point of view will show how kinanthropometric variables can be considered by coaches and evaluators when performing technical-tactical and biomechanical analysis in judo athletes. There are differences between sex and weight divisions as to the actions that are prevalent in each one of the categories. Lighter divisions performances must have specific training regarding approach and gripping. Attention should be paid to anticipation in athletes of the light and middle divisions. The rating of force development is the most important biomechanical measure.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73976696","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 : 2020-11-26DOI: 10.1590/1980-0037.2020v22e74189
Waleska dos Santos, J. L. Santos, A. C. Marçal, F. Aidar, Lúcio Marques Vieira Souza, S. S. Araújo
Abstract This study analyzed the responses of 24 sessions of High Intensity Interval Training (HIIT) and Continuous Moderate (CM) on tissue damage, oxidative stress and glycemic profile of rats in liquid medium. Twenty-four Wistar rats participated, divided into three groups: sedentary (GSED), the one who performed the HIIT (GHIIT) and the one who performed the CM (GCM). Performed three times a week alternately for 8 weeks, and the GHIIT performed 20 seconds of exercise for 10 rest. The CM was a moderate intensity swim. GHIIT increased creatine kinase compared to GSED (GSED: 140.40 + 35.48 U / I; GHIIT: 442.60 + 8.35 U / I; p = 0.0008, representing a percentage increase of 215.24); lactate dehydrogenase was increased in GHIIT and GCM compared to GSED (GSED: 112.8 + 28.08 U / I; GHIIT: 250.9 + 70.67 U / I, a percentage increase of 122.42; GCM: 241.8 + 100.70 U / I, with a percentage increase 114.36; p = 0.006), in contrast, GHIIT increased non-oxidized liver sulfhydryls compared to GCM (GHIIT: 498.70 + 214.30 nmol / ml; GCM: 270.50 + 104.40 nmol / ml, the percentage change was 84.36; p = 0.03). There was greater glycemic maintenance in the GCM (p = 0.0002). It is concluded that the protocols of HIIT and CM, of this study, point to a possible tissue injury, in contrast, HIIT develops the adaptive capacity of the hepatic antioxidant system and the CM promotes greater glycemic support.
{"title":"Analysis of the Physiological and Metabolic Responses between Two Types of Training in Wistar Rats","authors":"Waleska dos Santos, J. L. Santos, A. C. Marçal, F. Aidar, Lúcio Marques Vieira Souza, S. S. Araújo","doi":"10.1590/1980-0037.2020v22e74189","DOIUrl":"https://doi.org/10.1590/1980-0037.2020v22e74189","url":null,"abstract":"Abstract This study analyzed the responses of 24 sessions of High Intensity Interval Training (HIIT) and Continuous Moderate (CM) on tissue damage, oxidative stress and glycemic profile of rats in liquid medium. Twenty-four Wistar rats participated, divided into three groups: sedentary (GSED), the one who performed the HIIT (GHIIT) and the one who performed the CM (GCM). Performed three times a week alternately for 8 weeks, and the GHIIT performed 20 seconds of exercise for 10 rest. The CM was a moderate intensity swim. GHIIT increased creatine kinase compared to GSED (GSED: 140.40 + 35.48 U / I; GHIIT: 442.60 + 8.35 U / I; p = 0.0008, representing a percentage increase of 215.24); lactate dehydrogenase was increased in GHIIT and GCM compared to GSED (GSED: 112.8 + 28.08 U / I; GHIIT: 250.9 + 70.67 U / I, a percentage increase of 122.42; GCM: 241.8 + 100.70 U / I, with a percentage increase 114.36; p = 0.006), in contrast, GHIIT increased non-oxidized liver sulfhydryls compared to GCM (GHIIT: 498.70 + 214.30 nmol / ml; GCM: 270.50 + 104.40 nmol / ml, the percentage change was 84.36; p = 0.03). There was greater glycemic maintenance in the GCM (p = 0.0002). It is concluded that the protocols of HIIT and CM, of this study, point to a possible tissue injury, in contrast, HIIT develops the adaptive capacity of the hepatic antioxidant system and the CM promotes greater glycemic support.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79162520","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 : 2020-11-25DOI: 10.1590/1980-0037.2020v22e74390
Lélia Lessa Teixeira Pinto, Thaís Barros do Carmo, Alessandra Santos Sales, L. A. Nunes, C. A. Casotti
Abstract The aim of this study was to identify the metabolic syndrome (MS) components mostly influencing face shape in elderly individuals. This is a cross-sectional epidemiological study carried out with elderly individuals living in Aiquara County, Bahia State. Facial images at frontal view and MS were classified according to the National Cholesterol Education Program's Adult Treatment Panel III (revised version). Discriminant function, cross validation and distance Mahalanobis D2 were used to extract face shape variations due to MS. Principal Component Analysis (PCA) was used to evaluate MS components’ influence on face shape. The total of 193 elderly individuals were selected; there were significant differences in face shape due to MS (p <0.01) in both sexes. PCA 1 showed HDL-C in men, which accounted for 37% of the total variation. HDL-C in biplot is associated with individuals who do not have MS and with elderly individuals with MS - there was correlation between waist circumference and triglycerides. PCA 1 represented 33.2% of the total variation in women; this outcome is explained by triglycerides. There was association between blood glucose and waist circumference in biplot. HDL-C is related to women who do not have MS. Facial variations affected by MS did not derive from the action of any of the MS components, but from the association between them. Thus, geometric morphometrics emerges as a promising method that makes it possible identifying heart disease and metabolic risk factors according to face shape features.
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Pub Date : 2020-11-10DOI: 10.1590/1980-0037.2020v22e70184
Augusto Cézar Rodrigues Rocha, H. Castro, A. B. Freire, Bárbara Souza Faria, Gustavo Palhares Mitre, F. Fonseca, Cláudio Olívio Vilela Lima, G. Costa
Abstract The aim of the present study was to compare the tactical and technical behavior of beginner players in volleyball side-out between four distinct situations of reduced games with different area/player ratios: 4.5 m2 (3.0 m x 3.0 m), 8.0 m2 (4.0 m x 4.0 m), 10.58 m2 (4.6 m x 4.6 m), and 13.52 m2 (5.2 m x 5.2 m). We analyzed 76 games played by 16 players with a mean age of 12.2 ± 0.5 years and experience of 1.2 ± 0.8 years of practice. Tactical and technical behavior was analyzed using an adaptation of the Game Performance Analysis Instrument (GPAI). The analysis was conducted for passing, setting and attacking according to the components related to technical adjustment, technical efficiency and decision-making. The results showed that players presented higher technical and tactical indexes in the passing and setting skills in 4.6 m x 4.6 m and 5.2 m x 5.2 m situations. Also, in the 3.0 m x 3.0 m situation higher technical indexes were found for the attacking. No differences were found in the tactical behavior of attacking for tested situations. We conclude that the environmental constraints imposed by the small-sided games imply distinct technical and technical behaviors. Thus, the pedagogical strategy of using small-sided games for the teaching of volleyball for beginner players must be associated with the intended objectives for each basic volleyball skills.
摘要本研究的目的是比较初级的战术和技术行为球员之间的排球侧出四个不同的游戏有不同的区域/减少的情况下球员比率:4.5平方米(3.0 x 3.0), 8.0平方米(4.0 x 4.0), 10.58平方米(4.6 x 4.6)和13.52平方米(5.2 x 5.2)。我们分析了76年奥运会的16个玩家平均年龄为12.2±0.5年和1.2±0.8年的实践经验。战术和技术行为分析使用游戏表现分析工具(GPAI)的改编。根据技术调整、技术效率和决策的相关组成部分，对传球、定位球和进攻进行分析。结果表明:在4.6 m × 4.6 m和5.2 m × 5.2 m条件下，球员在传球和定位球技术方面表现出较高的技战术指标;在3.0 m × 3.0 m的情况下，进攻的技术指标较高。在测试的情况下，攻击的战术行为没有发现差异。我们得出结论，小边游戏所施加的环境约束意味着不同的技术和技术行为。因此，对初级排球运动员进行小面比赛教学的教学策略必须与每一项排球基本技术的预期目标相联系。
{"title":"Analysis of the small-sided games in volleyball: an ecological approach","authors":"Augusto Cézar Rodrigues Rocha, H. Castro, A. B. Freire, Bárbara Souza Faria, Gustavo Palhares Mitre, F. Fonseca, Cláudio Olívio Vilela Lima, G. Costa","doi":"10.1590/1980-0037.2020v22e70184","DOIUrl":"https://doi.org/10.1590/1980-0037.2020v22e70184","url":null,"abstract":"Abstract The aim of the present study was to compare the tactical and technical behavior of beginner players in volleyball side-out between four distinct situations of reduced games with different area/player ratios: 4.5 m2 (3.0 m x 3.0 m), 8.0 m2 (4.0 m x 4.0 m), 10.58 m2 (4.6 m x 4.6 m), and 13.52 m2 (5.2 m x 5.2 m). We analyzed 76 games played by 16 players with a mean age of 12.2 ± 0.5 years and experience of 1.2 ± 0.8 years of practice. Tactical and technical behavior was analyzed using an adaptation of the Game Performance Analysis Instrument (GPAI). The analysis was conducted for passing, setting and attacking according to the components related to technical adjustment, technical efficiency and decision-making. The results showed that players presented higher technical and tactical indexes in the passing and setting skills in 4.6 m x 4.6 m and 5.2 m x 5.2 m situations. Also, in the 3.0 m x 3.0 m situation higher technical indexes were found for the attacking. No differences were found in the tactical behavior of attacking for tested situations. We conclude that the environmental constraints imposed by the small-sided games imply distinct technical and technical behaviors. Thus, the pedagogical strategy of using small-sided games for the teaching of volleyball for beginner players must be associated with the intended objectives for each basic volleyball skills.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82119581","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 : 2020-11-10DOI: 10.1590/1980-0037.2020v22e72211
Diego De Mello, T. Ostolin
Abstract Physical exercise is capable to reduce blood pressure (BP) acutely in a phenomenon described as post-exercise hypotension (PEH). However, the acute effect of concurrent training on PEH needs clarification. The present review aimed to verify and summarize the acute effect of concurrent training on PEH in normotensive and hypertensive subjects. The search was carried out in the databases PubMed, Scielo, and Lilacs, and resulted in 3806 articles. Only 14 studies met the eligibility criteria and were selected. According to included studies, concurrent training can promote PEH regardless of the order, volume, and intensity prescribed, being an effective strategy in the control of arterial hypertension. There is no consensus in the literature regarding the best prescription strategy, as well as the order of execution of the types of exercise.
{"title":"Post-exercise hypotension in concurrent training: a systematic review","authors":"Diego De Mello, T. Ostolin","doi":"10.1590/1980-0037.2020v22e72211","DOIUrl":"https://doi.org/10.1590/1980-0037.2020v22e72211","url":null,"abstract":"Abstract Physical exercise is capable to reduce blood pressure (BP) acutely in a phenomenon described as post-exercise hypotension (PEH). However, the acute effect of concurrent training on PEH needs clarification. The present review aimed to verify and summarize the acute effect of concurrent training on PEH in normotensive and hypertensive subjects. The search was carried out in the databases PubMed, Scielo, and Lilacs, and resulted in 3806 articles. Only 14 studies met the eligibility criteria and were selected. According to included studies, concurrent training can promote PEH regardless of the order, volume, and intensity prescribed, being an effective strategy in the control of arterial hypertension. There is no consensus in the literature regarding the best prescription strategy, as well as the order of execution of the types of exercise.","PeriodicalId":38989,"journal":{"name":"Revista Brasileira de Cineantropometria e Desempenho Humano","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80741300","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}
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