bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comportamentos de risco para os transtornos alimentares em jovens atletas de voleibol: o estilo de liderança do treinador é um fator interveniente?
Authors: Fortes Leonardo De Sousa , Vasconcelos Gustavo César de , Silva Delton Manoel dos Santos , Oliveira Geraldo José Dos Santos , Ferreira Maria Elisa Caputo 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n1p84 The aim of this study was to analyze the influence of coach’s leadership style on eating disorders (ED) in female volleyball athletes. This is a prospective study with 73 participants of sub-17 state of Pernambuco Championship. The Eating Attitudes Test was applied to evaluate ED. The perception of the coach’s leadership style was evaluated with Leader Sport Scale subscales. Triceps and subscapular skinfolds were measured to estimate body fat percentage. The findings showed no influence of “Training-Instruction” on ED (F(3, 70)=45.02; R²=0.12; p=0.34). The “Social Support” subscale showed statically significant influence on ED (F(4, 69)=59.77; R²=-0.16; p=0.02). However, the results indicated no statically significant relationship of “Reforce” subscale with ED (F(5, 68)=52.40; R²=0.13; p=0.17). The “Democratic” subscale so showed no influence on ED F(6, 67)=49.08; R²=0.10; p=0.21). Finally, the “Autocratic” subscale showed influence on ED (F(7, 66)=67.23; R²=0.18; p=0.01). We concluded that the coach’s leadership style (social support and autocratic) influenced the adoption of DEB in young female volleyball athletes.
Permanência de idosos em um Programa Comunitário de Atividade Física e fatores associados
Authors: Santos Cristiane Kelly Aquino dos , Monteiro Glauber Rocha , Couto Josiene De Oliveira , Silva Roberto Jeronimo dos Santos 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n2p139 The registration or insertion of older adults in Community Physical Activity Programs does not guarantee their stay over time. The purpose of this study was to analyze the length of stay of elderly in a Community Physical Activity Program and associated factors. This epidemiologic observational study of retrospective cohort performed in Aracaju City, Brazil, included a sample of 526 older adults (477 females) aged 66.4 ± 5.4 years. To characterize the profile and length of stay of individuals, descriptive statistics was used. To analyze the length of stay, the Kaplan-Meier non-parametric survival, estimator was used. To verify the association between variables in the observed time, the Cox regression model was applied. Inverse ratio equation (1/OR) was used to facilitate the understanding of significant values when necessary. In all analyses, 95% confidence interval and p≤0.05 were used. In the first three months, stay rate of 58.1% (95% CI = 54.6 - 61.3) was observed, with a risk estimative = 41.82%. Females presented a 45% chance of stay (OR = 0.69; 95% CI = 0.51 – 0.93) and individuals identified with osteoporosis had 32% more chances of stay (OR = 0.74, 95% CI, = 0.60-0.91). Only 1% of subjects remained until the end of the cohort. The stay rate was low throughout all series; the period with higher quitting rates was the 3rd and the 12th months, being associated with the female stay sex and undiagnosed osteoporosis.
Atividade física e tempo sentado combinados e sua contribuição no índice de massa corporal em adultos
Authors: Gonçalves Priscila Bezerra , Lopes Adalberto Aparecido Dos Santos , Silva Alexandre Augusto De Paula , Silva Jeruza Sech Buck , Silva Alice Tatiane Da , Becker Leonardo Augusto , Kienteka Marilson , Reis Rodrigo Siqueira 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n2p174 The aim of this study was to analyze the contribution of physical activity (PA) and sedentary time (ST) to Body Mass Index (BMI) in adults. The study was conducted in 2009, in Curitiba, Parana, Brazil with adults aged 18-65 years (1,411). A multidimensional questionnaire was used in which BMI, weekly minutes of PA and ST were obtained from self-reports. PA and ST were combined to determine the following independent variables: a) “active and not sedentary”; b) “active and sedentary”; c) “not active and not sedentary” and d) “not active and sedentary”. Multinomial logistic regressions were used to test the associations between PA, ST and BMI. The adjusted regression model showed that PA, regardless of ST, lowered the likelihood of participants being classified as obese by 34% and 55%, respectively. In addition, PA at recommended levels (≥150 minutes/week), while not being sedentary, lowered by 85% the likelihood of being classified in the underweight category. Finally, ≥10 minutes/week of PA, while reporting higher ST levels, reduced the likelihood of being classified as overweight by 37%. PA is associated with BMI regardless of TS. In addition, PA at recommended levels is inversely related to obesity and overweight.
Prática de atividade física no lazer e fatores associados em frequentadores de academias ao ar Livre
Authors: Silva Marcelo Cozzensa da , Iepsen Alice Meyer , Caputo Eduardo Lucia , Engers Patrícia Becker , Spohr Carla Francieli , Vilela Guilherme Fonseca , Dorneles Rui Carlos Gomes 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n2p185 Fitness zones (FZ) are a great alternative to physical activity practice. The aim of this study was verify physical activity practice and associated factors among FZ users of Pelotas. Participants answered a questionnaire containing demographic, socioeconomic, behavioral, health and on the use of FZs. A long version of the International Physical Activity Questionnaire was used to determine the level of physical activity and those who reported at least 150 minutes / week of PA in the leisure time were considered sufficiently active. The study included 323 subjects (65.3% women), mean age 52.5 years, 83.6% white skin color and 61.9% married. Almost half of respondents were overweight (48.0%), 45.8% had high blood pressure, 10.5% had diabetes and 64.4% used medications. About 77.7% of respondents were classified as sufficiently active. Health perception was associated to leisure physical activity, and the better the health perception, the higher the prevalence of sufficient physical activity. Collective programs with participation of Physical Education teacher can contribute to interaction of practitione with the use of fitness zones and increase the level of physical activity of individuals.
Classificação esportiva para atletas com deficiência visual e sua relação com o desempenho na natação
Authors: Souto Elaine Cappellazzo , Oliveira Leonardo Dos Santos , Santos Claudemir Da Silva , Greguol Márcia 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n2p196 The medical classification (MC) adopted for swimmers with vision visual impairment (VI) does not clearly elucidate the influence of vision loss on performance. In a documentary research, the final time in the 50-, 100- and 400-m freestyle events and MC (S11, S12 and S13) of national (n = 40) and international (n = 72) elite swimmers was analyzed. The analysis was performed using the Kruskal-Wallis test and Spearman’s correlation with 95% confidence (P < 0.05) and Cohen’s d was calculated. There was a large effect of MC on the final time in the 50-m (P = 0.034, d = 1.55) for national athletes and in the 50-m (P = 0.001, d = 2.64), 100-m (P = 0.001, d = 3.01) and 400-m (P = 0.001, d = 2.88) for international athletes. S12 and S13 classes were faster compared to S11 class for all international events, but only in the 50-m for the national event (P < 0.05). It was found a strong negative relationship between the final time and MC for international athletes (Spearman’s Rho ≥ 0.78). There was a significant influence of MC on the performance of swimmers in freestyle races, especially in international swimmers. Thus, having a visual residue seems to be sufficient for S12 and S13 swimmers to achieve similar performance.
Composição corporal e desempenho motor no handebol em cadeira de rodas
Authors: Borges Mariane , Silva Anselmo Athayde Costa e , Faria Fernando Rosch de , Godoy Priscila Samora , Melo Ellen Rodrigues Barbosa , Calegari Décio Roberto , Gorla José Irineu 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n2p204 The aim of this study was to verify the relationship between body composition and motor performance in Wheelchair Handball players (WH). Overall, 21 athletes composed the sample (13 males and 8 females). To analyze motor performance, the following tests were used: ball driving, block performance, 20 m velocity and zigzag agility for individuals on wheelchair. Body mass, height, body perimeter and skinfold thickness (tricipital, subescapular, bicipital and supra-iliac) were used to establish body composition profile. Data was presented through descriptive statistics and inference was performed by Spearmans’ and Kruskal-Wallis correlation coefficient (non-parametric). Therefore, strong and significant correlations between body composition and motor performance were detected within different functional class and also according to sex, whereas male athletes showed significant correlation between body fat percentage and agility (r=0.70, p≤0.01) and, in the case of female athletes, body fat percentage is strongly related with speed (r=0.81, p≤0.01) and agility (r=0.74, p≤0.05). As conclusion, it was verified that apparently, increased body fat in body composition profile negatively influences motor performance in wheelchair handball players.
Repeatability and intra-rater reproducibility of a digitalized test of body image perception
Authors: Schmit Emanuelle Francine Detogni , Rodrigues Ana Paula , Souza Catiane , Candotti Cláudia Tarragô , Loss Jefferson Fagundes 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n2p214 A body schema is a cortical representation of the spatial relations of body parts. It can be evaluated using the Image Marking Procedure (IMP). However, that instrument lacks information regarding its reliability and a standardized set of procedures. The aim of this study was to test the repeatability and intra-rater reproducibility of an adapted IMP. Methods: It consisted of two steps: (1) adaptation of the instrument; (2) verification of its reliability. Sixty-five young adult women were evaluated on two different days by a single rater, with a one-week interval between evaluations. Three consecutive measurements were performed on each day. Regarding repeatability, for all the variables (coordinates, distances and area), the ICC scores were classified as excellent, with low SEM (<4.5cm) and MDC (<8.5cm) values. Regarding intra-rater reproducibility, only the variables area and distance between the trochanters presented ICC> 0.6. The adapted IMP needs to be conducted only once. Regarding reproducibility, the variables apt for use are the area within the points and the distance between the trochanters. In contrast to the original IMP test, in this adapted version we do not recommend the use of the distances between the shoulders, the hip/waist or the top of the head in relation to the ground.
Voleibol: análise do ataque realizado a partir do fundo da quadra na Superliga Masculina Brasileira
Authors: Costa Gustavo De Conti Teixeira , Evangelista Breno Ferreira de Britto , Maia Mariana Pereira , Ceccato Juliana Sampaio , Freire Auro Barreiros , Milistetd Michel , Moraes José Cícero , Ugrinowitsch Herbert 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n2p233 The aim of this study was to identify the effect of attacks from positions 1 and 6 in high-level Brazilian Men’s Volleyball in order to understand the offensive structure of the game. The sample was composed of the observation of 142 2014-2015 Men’s Superleague games, totaling 2969 reception, set and attack actions from positions 1 and 6. The results showed association between place of attack, attack tempo, type of attack and effect of attack (p<0.001). The results showed that the point of attack, when it is performed from position 6, is associated with parallel attack, while, when analyzing position 1, the point of attack is associated with potent diagonal attack. Furthermore, placed attack was associated with game continuity, as well as with low-quality receptions (b and c). In this context, it was concluded the attacking position influences the attack efficacy, according to time and type of attack.
Desempenho e comportamento tático de jogadores de futebol das categorias de base
Authors: Reis Marcos Antônio Mattos dos , Vasconcellos Fabrício Vieira do Amaral , Almeida Marcos Bezerra de 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n2p242 The aim of this research was to evaluate the performance and tactical behavior of youth soccer players of teams from base categories. The sample consisted of 152 male soccer players aged 11-17 years who participated in the in the U-13 (n = 50), U-15 (n = 62) and U-17 (n = 40) Sergipe State Championship in the year 2015. The System of Tactical Assessment in Soccer (FUT-SAT) was used to identify the players’ tactical behavior based on the fundamental tactical principles. The main results of the study show that players presented higher tactical offensive performance (50.8 ± 9.8 points) compared to defensive performance (34.3 ± 5.7 points) (p < 0.001; d = 2,1), and the Depth Mobility principle presented the highest performance indices in the offensive phase (64.1 ± 8.7; F = 54.4; p < 0.001; partial ƞ² = 0.26). Defensive Coverage showed the highest performance indexes in the defensive phase (46.1 ± 24.3; F = 54.4; p < 0.001; partial ƞ² = 0.26).
Comportamento tático de atletas sub-15 no futebol: avaliação das alterações ao longo de uma temporada esportiva
Authors: Praça Gibson Moreira , Sousa Raphael Brito e , Silva Jorge Victor De Oliveira , Constantino Frederico Gonçalves , Moreira Pedro Emílio Drumond , Custódio Igor Junio De Oliveira , Pérez Morales Juan Carlos , Greco Pablo Juan 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n2p251 This study aimed to compare the tactical behavior of U-15 soccer players over a season. Sixteen high-level athletes (mean age 14.5 years) from the city of Belo Horizonte participated in the study. Athletes were monthly evaluated by means of the field test using the System of Tactical Assessment in Soccer – FUTSAT, which allowed the characterization of the incidence of tactical principles and place of action in the game field, as well as the percentage of positive offensive and defensive tactical principles. Data were analyzed by Friedman’s test (incidence of tactical principles and place of the action) and one-way ANOVA for repeated measures (percentage of positive tactical principles), adopting significance level of p<0.05. Results showed differences in the incidence of offensive and defensive units tactical principle, as well as the place of actions in the game field. An improvement in offensive and defensive tactical behavior was also observed throughout the season.
Acute neuromuscular response during eccentric overload protocol by using a mechanical device to increase the load
Authors: Lanza Marcel B , Pertence Antônio E M , Andrade André G P , Peixoto Gustavo H , Felix Leonardo B , Chagas Mauro H 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n4p375 The aim of this study was to propose a mechanical device that could increase the mechanical load during the entire eccentric (ECC) action on a knee flexor machine and to compare the muscular activity when the device was used during a testing protocol. Fifteen physically active women were recruited, and they performed two protocols: control and eccentric overload. Control protocol was performed with concentric (CON) and ECC actions with similar load (60% of one repetition maximum) whilst eccentric overload protocol consisted of ECC actions with 40% more load than CON actions. Muscular activation was measured using surface electromyography of the biceps femoris (BF) and the gastrocnemius medialis (GM) muscles. ECC actions presented a higher muscular activation during eccentric overload protocol than control protocol for BF (p = 0.032), but not for the GM (p = 0.439). The mechanical device increased the mechanical load during the ECC muscle action and consequently increased the amplitude of the neural drive to the BF muscle; however, it did not increase the amplitude of the neural drive to the GM muscle.
A carga interna de treinamento é diferente entre atletas de voleibol titulares e reservas? Um estudo de caso
Authors: Horta Thiago Andrade Goulart , Coimbra Danilo Reis , Miranda Renato , Werneck Francisco Zacaron , Bara Filho Maurício Gattás 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n4p395 The same training stimulus can provide different physiological adaptations for athletes of the same team. Thus, the aim of this study was to analyze and compare the load training of starters and nonstarters players, athletes of a men’s volleyball team at different times of the season. The sample consisted of fifteen men’s volleyball superleague athletes who were divided into two groups of starters and nonstarters players. The training load of the ten weeks of the team’s preparation period for the main championship season in which no games were performed was selected for the study. The method of subjective perceived of effort (session-RPE) proposed by Foster et al. (2001) was used to quantify the training load. The group of starters players had higher total weekly training load (TWTL) and RPE values in the average of the ten weeks of training (p<0.05). Higher TWTL values for starters players in the preparatory and pre-competitive period compared to nonstarters players was also demonstrated (p<0.05). When different weeks were analyzed separately, weeks three and seven presented higher TWTL and RPE values for starters players compared with nonstarters players (p<0.05). The results presented in this study showed that starters players showed greater internal training load compared to nonstarters players.
Isokinetic Performance of Knee Flexor and Extensor Muscles in American Football Players from Brazil
Authors: Severo-Silveira Lucas , Fritsch Carolina Gassen , Baroni Bruno Manfredini , Marques Vanessa Bernardes , Dornelles Maurício Pinto 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n4p426 The isokinetic performance of thigh muscles has been related to athletic performance and risk for non-contact injuries, such as anterior cruciate ligament ruptures and hamstring strains. Although isokinetic profile of American football players from United States (USA) is widely described, there is a lack of studies comprising players acting outside the USA. The primary objective of this study was to describe the isokinetic performance of thigh muscles in elite American football players in Brazil. Secondarily, we aimed to compare the playing positions and compare the Brazilian players with high-level athletes from USA. Knee extensor (KE) and flexor (KF) muscles of 72 Brazilian players were assessed through isokinetic tests at 60°·s-1. KE concentric peak torque was 276±56 N·m, while KF had concentric and eccentric peak torques of 151±37 N·m and 220±40 N·m, respectively. Offensive linemen players presented greater peak torque values than defensive lineman, halfbacks, and wide receivers (all comparisons are provided in the article). Brazilian players had lower scores than USA athletes for KE and KF peak torque values. In addition, a conventional torque ratio (concentric/concentric) lower than 0.6 was found in 76-83% of athletes, and a functional ratio (eccentric/eccentric) below to 1.0 in 94%. Bilateral asymmetry greater than 10% was verified in 26% and 43% of athletes for KE and KF muscles, respectively. Elite players in Brazil present high incidence of strength imbalance in thigh muscles, and they are below USA players in relation to torque production capacity of KE and KF muscles.
Associação entre obesidade, risco de quedas e medo de cair em mulheres idosas
Authors: Neri Silvia Gonçalves Ricci , Gadelha André Bonadias , Correia Ana Luiza Matias , Pereira Juscélia Cristina , Safons Marisete Peralta , Lima Ricardo Moreno 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n4p450 The aim of this cross-sectional study was to investigate the association between obesity, risk of falls and fear of falling in older women. Two hundred and twenty-six volunteers (68.05 ± 6.22 years, 68.06 ± 11.79 kg, 1.56 ± 0.06 m) were classified as normal weight, overweight or obese, according to the body mass index. Risk of falls and fear of falling were evaluated using QuickScreen Clinical Falls Risk Assessment and Falls Efficiency Scale – International (FES-I), respectively. Comparisons between groups were conducted using Chi-square and ANOVA One-way tests. The significance level was set at p< 0.05. Obesity was associated with greater probability of falls (p< 0.001), which may be partly explained by decreased muscle strength (p< 0.001) and reaction time (p< 0.001). In addition, significant differences between groups was observed in FES-I score (p< 0.01), with obese women showing more pronounced fear of falling (30.10 ± 8.4) than normal weigh (25. 33 ± 7.11, p< 0.01) and overweight subjects (26.97 ± 7.05, p< 0.05). These findings corroborate previous evidence pointing obesity as a major risk factor for falls. Therefore, health professionals dealing with fall prevention should consider the effects of overweight.
Esteatose hepática pode comprometer o efeito do exercício físico sobre a composição corporal em crianças e adolescentes obesos?
Authors: Saraiva Bruna Thamyres Ciccotti , Monteiro Paula Alves , Brunholi Claudia De Carvalho , Santos Marcelo Rodrigues Ribeiro dos , Christofaro Diego Giulliano Destro , Freitas Júnior Ismael Forte 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n4p459 Physical exercise is one of the forms of prevention and treatment of obesity and associated diseases such as hepatic steatosis. The aim of this study was to analyze whether hepatic steatosis interferes in the effect of physical exercise on the body composition of obese children and adolescents. The sample consists of 40 obese individuals, 13 children (8.17±1.33 years) and 27 adolescents (12.28±1.36 years). Total and segmental body composition was estimated by DEXA. Anthropometric measurements were performed, as well as ultrasound examination of the liver to measure intra-abdominal and subcutaneous fat, and to diagnose hepatic steatosis (HS). The intervention consisted of 20 weeks, with recreational/competitive activities being applied to children and, for adolescents, concurrent training (aerobic and resistance). The Levene’s, repeated-measures ANOVA and effect size tests (ES) by Eta-Squared were performed. It was observed that, although not statistically significant, analyzing the effect size, physical activity in both children (body fat ES effect time= 0.210 and ES effect group= 0.208; fat mass ES effect group = 0.338; fat android ES effect Interaction= 0.267), and adolescents (intra-abdominal fat ES effect group = 0.230) regardless of whether or not HS was effective in reducing body fat. Therefore, exercise was effective in improving the body composition of obese children and adolescents, regardless of HS.