bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prevalência e fatores associados à prática de atividades físicas no lazer: inquérito repetido em estudantes universitários
Authors: Santos Sueyla Ferreira da Silva dos , Freitas Júnior Ismael Forte , Alvarenga Ana Maria , Fonseca Silvio Aparecido , Virtuoso Junior Jair Sindra , Sousa Thiago Ferreira de 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n5p577 The practice of leisure physical activity represents a behavior that must be monitored in different population groups. The objectives of this study were i) to compare the prevalence of leisure-time physical activity in university students along the survey years in three separate years; ii) to analyze the factors associated with practice of leisure time physical activity in each survey. Three surveys in a college institution in northeastern Brazil in 2010, 2012 and 2014 were carried out. The dependent variable was practice of leisure-time physical activity. Exploratory variables were sociodemographic factors and link with the university. The prevalence was compared using the chi-square test for linear trend and association for Prevalence Ratio. Participation was of 1,084, 1,085 and 1,041 college students in 2010, 2012 and 2014, respectively. The prevalence of leisure-time physical activity was approximately 50% in the three surveys. Women were less active in leisure time on the three surveys. In each survey, associations were different in relation the courses, and Chemistry – teacher training, Computer Science, Pedagogy – teacher training and Linguistics (no specialization) students showed lower levels of leisure-time physical activity and Biomedicine, Geography – Bachelor, Physical Education – teacher training and Geography – teacher training students were more active in leisure time. It was concluded that there was a stabilization of the prevalence of active leisure over time and that women showed lower prevalence of leisure-time physical activity in the three surveys.
Comportamento visual e qualidade da tomada de decisão no voleibol
Authors: Castro Henrique De Oliveira , Praça Gibson Moreira , Costa Gustavo De Conti Teixeira , Pedrosa Gustavo Ferreira , Greco Pablo Juan 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n6p638 This study aims to verify the visual behavior using the analysis of both quantity and duration of visual fixation and the quality of the DM in volleyball players and athletes from other sports in extreming attacking (EA), cental attack (CA), setting (SE) and blocking (BL) situations. The visual behavior was analyzed during the evaluation of volleyball scenes with an eye-tracking system. The first decision the volunteer voiced was determined as his solution for the scene presented and it was used for analyzing the DM quality. For the quantity of visual fixations, the independent t-test was used to compare groups in the following situtations, EA, SE and BL. For analyzing the quality of DM, the chi-square test of proportions was used. Moreover, for the analysis of the duration and number of visual fixations, the independent t test was addopet (or Mann-Whitney test when some of the assumptions were not met for parametric analysis). Significantly higher values were observed on duration of visual fixations in athletes from other sports comparing to volleyball players at CA (p = 0.042). The DM were significantly different in EA (p = 0.024) and CA (p = 0.001) between groups, showing higher frequency of correct answers for the volleyball players. We conclude that volleyball players perform faster fixations in situations of CA and take more correct decisions in attacking situation (EA and CA) compared to athletes from other sports.
Time-motion analysis and effort-pause relationship in taekwondo combats: a comparison of competitive levels
Authors: Del Vecchio Fabrício Boscolo , Antunez Bruno , Bartel Charles 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n6p648 To improve the combat sports training processes, the knowledge of effort:pause (E:P) ratio and of the high intensity:low intensity (HI:LI) relationship may be useful. However, no studies have investigated these aspects in taekwondo (TKD) official matches from different levels. The aim of this study was to analyze and compare the temporal structure of TKD combat matches at regional and state-level events. Thirty-four combat matches involving male TKD black belt athletes were analyzed. The athletes took part in two separate championships according to their level of competitiveness. Non-parametric distributions were identified in all variables, and the median was used as centrality and the interquartile range (25%-75%) for dispersion. The analysis of non-parametric variance, Kruskal-Wallis, with Dunn post-hoc, was used for comparisons between variables within the same competitive level and Mann-Whitney test between them. The significance level was 5%. On both levels, approximately 50% of combat time (51.3% and 50.8% in state and regional, respectively) was aimed at low-intensity activities in an observation mode; 12% of the time was devoted to preparation actions; and 36% represented high-intensity activity. It was also noted that the relationship of E:P at the state level was 1:8; at the regional level, it was 1:4. The relationship of HI:LI was 1:3 in the state and regional levels. It was observed that there is a difference in the E:P relationship during TKD competitions among different competitive levels. These findings can assist coaches and trainers in developing suitable, specific training processes according to TKD competition level.
Associação entre intenção para prática de atividade física, apoio social e atividade física
Authors: Paiva Hermes Koller de , Camargo Edina Maria de , Silva Alexandre Augusto de Paula da , Reis Rodrigo Siqueira 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n6p667 Intrapersonal and interpersonal aspects have been widely correlated to variations on the physical activity (PA) levels. The aim of this study was to examine the moderating effect of intention for PA practice on the association between social support and leisure PA levels in a sample of college students from Curitiba, Brazil. A questionnaire was administered in a sample of 349 college students from a Physical Education undergraduate program. The variables intention to PA practice, social support (family and friends) and leisure-time PA were obtained through interviews. Poisson regression was used to test the moderating effect of intention to PA practice on the association between social support and leisure-time PA levels. The intention for PA practice showed no moderating effects on leisure PA. Social support from friends was associated with achieving recommended PA levels (≥150min/week), regardless of intention for PA practice (PR: 1.45; 95% CI: 1.09-1.93). In this study, moderating effect of intention for PA practice on the association between social support and leisure-time PA has not been found.
Use of physical activity and cardiorespiratory fitness in identifying cardiovascular risk factors in male brazilian adolescents
Authors: Brito Lilian Messias Sampaio , Mascarenhas Luis Paulo Gomes , Moser Deise Cristiane , Titski Ana Cláudia Kapp , Cat Monica Nunes Lima , Coelho-e-Silva Manuel João , Boguszewski Margaret Cristina Da Silva , Leite Neiva 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n6p678 The aim of this study was to investigate the impact of physical activity (PA) and cardiorespiratory fitness (CRF) levels on the prevalence of overweight and high blood pressure levels in adolescents. In this observational, cross-sectional study, 614 boys aged 10-14 years were assessed for height, body mass, body mass index (BMI), waist circumference (WC) and blood pressure (BP). CRF was assessed using a run test (Léger Test) and subjects were then grouped according to their CRF level. PA level was assessed through a questionnaire (The Three Day Physical Activity Recall) and classified into two groups, namely > 300 minutes of PA/week and < 300 minutes of PA/week. Maturational stage was evaluated according to the development of pubic hair (self-assessment) as proposed by Tanner. We used statistical descriptive analysis, univariate and multivariate analyses in the total participants and subjects were divided by age. Fifty percent of the sample performed < 300 minutes of PA/week and 67.6% had unsatisfactory CRF levels. There was a higher prevalence of unsatisfactory CRF levels among subjects with altered BMI (overweight), WC (abdominal obesity) or BP (high blood pressure) for all age groups. PA history, however, did not show any significance. A total of 31% of participants were overweight, 24.8% had abdominal obesity and 15.4% had increased BP. Unsatisfactory CRF levels were found to be a better predictor for the diagnosis of cardiovascular diseases (CV) risk factors than PA history, regardless of age group.
Aerobic fitness profile of youth soccer players: effects of chronological age and playing position
Authors: Cunha Giovani Dos Santos , Lopes André Luís , Geremia Jeam Marcel , Leites Gabriela Tomedi , Baroni Bruno Manfredini , Voser Rogério Da Cunha , Vaz Marco Aurélio , Reischak-Oliveira Álvaro 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n6p700 To establish a profile of the aerobic fitness in young soccer players, it is critical to consider different intervenient factors such as maturity status, chronological age and playing position. The aim of this study was to identify the biological maturation, chronological age, and playing position effects on physical and physiological characteristics of young soccer players. Two hundred and one soccer players of 11-19 years old were divided into groups relative to their maturity status, chronological age and playing position. A maximal exercise test was performed to determine peak oxygen uptake (VO2peak) and ventilatory thresholds (VT1 and VT2) parameters in a treadmill. Biological maturation showed no significant effect on relative values (mL.kg-1.min-1) of VO2peak, VT2 and VT1 (0.004 < h2 < 0.039), but showed large positive effect on maximal aerobic speed (MAS) and speed at VT2 (VT2speed). Chronological age showed a medium positive effect on relative values of VO2peak, VT2 and VT1 (0.095 < h2 < 0.137) and a large positive effect on MAS and VT2speed. Relative values of VO2peak and VT1 showed no significant differences among groups for playing position (P>0.05; 0.044 < h2 < 0.051). However, goalkeepers showed significant lower relative values for VT2 and VT2speed than other playing positions and a medium positive effect was observed (P<0.05; 0.077 < h2 < 0.119). Chronological age showed a medium to large positive effect on aerobic fitness parameters, while biological maturation showed a positive effect only on MAS and VT2speed. Playing position showed a medium positive effect on VT2 and VT2speed.
Relação entre alto comportamento sedentário no lazer e baixa funcionalidade de idosos
Authors: Bertolini Giovana Navarro , Santos Vanessa Ribeiro dos , Alves Marcelo José , Cervellini Paulo Cesar Marini , Christofaro Diego Giulliano Destro , Santana Luís Felipe Dutra de , Gobbo Luís Alberto 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n6p713 Sedentary behavior refers to activities with low energy expenditure, usually performed in sitting or lying positions, and includes behavior belonging to the current lifestyle, such as watching television. In the course of aging, this activity is performed for longer periods by individuals on a daily basis. This is worrying, since aging associated with sedentary behavior accentuates functionality decline. The aim of this study was to analyze the relationship between high leisure-time sedentary behavior and low functionality in older adults. The sample consisted of 375 older adults aged 60-97 years (70 ± 7 years), and of these, 114 (30%) were men and 261 (70%) women. Functionality was assessed by two functional tests and information related to sedentary behavior was obtained using the self-reported physical activity questionnaire proposed by Baecke et al. The chi-square test was used to verify the association between sedentary behavior and functionality, and binary logistic regression analysis was used to build the multiple model. Older individuals with high leisure-time sedentary behavior were more likely to have low functionality [OR 2.57; 95% CI 1.40 to 4.71] and [OR 2.35; 95% CI 1.29 to 4.29] regardless of gender, age, smoking, osteoporosis, arthritis / osteoarthritis, low back pain and physical activity. Extended permanence in sedentary behavior was associated with low functionality in older subjects. Preventive measures to stimulate the practice of physical activities and encourage the reduction of time spent in sedentary activities such as watching television should be adopted by health professionals in an attempt to maintain functionality among older adults.
Efeitos agudos da utilização de dispositivos geradores de instabilidade externa sobre o desempenho neuromuscular
Authors: García-Orea Guillermo Peña , Santos Marta Silva , Heredia Elvar Juan Ramón , Da Silva-Grigoletto Marzo Edir 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n6p722 Physical training with the use of instability generator devices has become popular in the health area, in sport training and clinical practice (mainly in the prevention and treatment of injuries). To understand how the process of using these devices occurs and the results of their acute effects is important to guide professionals in choosing the appropriate device. The aim of this review was to present the main features of instability devices and analyze their acute effects on core muscle activation, neuromuscular performance and activation of lower and upper limbs. Studies have shown that the main acute effects of exercises performed with these devices are: 1) increased activation / muscular recruitment (especially in the middle zone or core); 2) greater co-activation of antagonist muscles (trunk, upper and lower limbs), with increased stiffness and joint stability; 3) lower force output, power and speed in extremities.
Produção dos bolsistas de produtividade em Educação Física no triênio 2010-2012: os “Top 30” periódicos com maior número de publicações
Authors: Pedroso Bruno , Picinin Claudia Tania , Cantorani José Roberto Herrera 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n6p731 Researchers receiving grant from the Brazilian National Council for Scientific and Technological Development (CNPq) are a reference group in Brazilian academia. Therefore, the aim of this study was to analyze the 30 journals with the highest number of publications of researchers in the Physical Education area who received grants in the 2010-2012 triennium. From this analysis, the relevance of journals in the Physical Education area was also evaluated. For the accounting of publications, the scriptLattes v8.07 software was used. The 88 researchers in Physical Education area published 2600 papers in 530 different journals in the 2010-2012 triennium. It was found that among the 30 journals with the highest number of publication, 19 are published in Brazil; from “Top 10”, eight journals are published in Brazil. Concerning journals that have publications of researchers who have received grants of all categories/levels, of the 11 journals that meet this requirement, seven are published in Brazil. It was concluded that, however Brazilian journals are minority in the upper stratum of Webqualis in the Physical Education area, they still stand as the main communication vehicle of elite researcher in the area.
Is respiratory exchange ratio an alternative to estimate anaerobic threshold in trained runners?
Authors: Diefenthaeler Fernando , Sakugawa Raphael Luiz , Dellagrana Rodolfo André , Follmer Bruno , Lemos Elisa Cristina , Campos Wagner De 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n1p108 Several studies showed that respiratory exchange ratio (RER) have been used as an alternative to evaluate the aerobic capacity in a single incremental test. However, few studies have investigated trained runners. The aim of this study was to verify if the respiratory exchange ratio (RER) could be used as an alternative criterion for estimating anaerobic threshold (AT) in long-distance runners. Nineteen male long-distance runners volunteered to participate in the study. An incremental treadmill test was performed with initial speed of 10 km·h-1 with increments of 1 km·h-1 every 1 min until voluntary exhaustion. The variables measured were oxygen uptake (VO2), first and second ventilatory thresholds (VT1 and VT2, respectively), intensity corresponding to RER level of1.0 (iRER1.0), peak velocity (PV), heart rate (HR), and rate of perceived exertion (RPE). One-way repeated measure analysis variance was used, following Bonferroni post hoc test. Agreement between parameters was evaluated by Pearson correlation and dispersion error. There were no significant differences between iRER1.0 and VT2 parameters. The correlations were significant between iRER1.0 and VT2 parameters for absolute and relative VO2, speed, and HR (r=0.95; r=0.60; r=0.72; r=0.81, respectively). A small mean error (-0.2 km·h-1) was observed between iRER1.0 and VT2. However, it was also observed an overestimation trend for high speeds. In conclusion, iRER1.0 can be used as an alternative method to detect AT in long distance runners. However, its use is limited in runners with high aerobic capacity.
Efeito da potencialização pós-ativação no Atletismo: uma revisão sistemática
Authors: Borba Diego De Alcantara , Ferreira-Júnior João Batista , Santos Luniky Alves dos , Carmo Maria Carolina do , Coelho Leonardo Gomes Martins 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n1p128 Post-activation potentiation is a physiological phenomenon reported to increase muscle performance during high-intensity exercise. To induce post-activation potentiation, maximal strength or power short-duration activities are performed minutes prior the main activity in an attempt to enhance performance. The aim of this study was to evaluate previous publications on the effects of post-activation potentiation on athletic performance. This systematic review used Scielo, Pubmed and SporDiscus database with the following search terms either alone or grouped together: post-activation potentiation, exercise, athletics, track and field, sprint, long jump, triple jump, high jump, shot put, javelin throw, hammer throw e discus throw. The review provided evidence that performing squat, jump and sprint exercises prior to the main activity elicited a state of potentiation that would improve sprint and throw performances and that preparatory activities that can cause post-activation potentiation should be used to improve athletic performance.
Validade e fidedignidade de um instrumento em Português para avaliar o padrão de uso de bicicleta em áreas urbanas
Authors: Kienteka Marilson , Reis Rodrigo S 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n1p17 The aim of this study was to analyze the validity and reliability of an instrument to assess bicycle use patterns in urban areas through systematic observation. The instrument items were selected from a literature review. Content validity was established by consensus opinion of experts of the physical activity area. The temporal stability (reliability) was verified by percentage of agreement and intraclass correlation coefficient (ICC). Observations were conducted using an adapted protocol based on the System for Observing Play and Recreation in Communities (SOPARC), consisting of systematic scans for counting cyclists in an urban area through video images provided by the public transport control system of Curitiba (URBS). Observers A and B recorded a total of 383 and 378 cyclists. Most of the observed subjects were men (87%), adults (84%), cycling on the BRT lane (54%), coming from downtown (54%), rode the bicycle on the wrong side of the street (58.2%), were not wearing a helmet (76.8) and bicycled alone (64%). Agreement percentiles ranged from 89.2 to 99.5% and ICC values from 0.922 to 0.999. According to criteria adopted, reliability was considered high in all categories included in the instrument. The instrument showed validity and reliability to be used in studies aiming to evaluate bicycle use patterns in Brazilian urban areas.
High sedentary behavior and compromised physical capabilities in adult smokers despite the suitable level of physical activity in daily life
Authors: Lauria Vinicius Tonon , Sperandio Evandro Fornias , Matheus Agatha Caveda , Silva Rodrigo Pereira da , Romiti Marcello , Gagliardi Antônio Ricardo de Toledo , Arantes Rodolfo Leite , Dourado Victor Zuniga 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n1p62 Sedentary behavior may play an important role for health outcomes, regardless of the amount of physical activity in daily life (PADL).We aimed to evaluate and compare sedentary behavior as well as physical capabilities in physically active smokers and non-smokers. Twenty-eight adult smokers and 38 non-smokers free of lung disease were matched for age, sex, body mass index, body composition, cardiovascular risk and moderate-to-vigorous PADL. Participants underwent spirometry, cardiopulmonary exercise test (CPET), six-minute walk test (6MWT), isokinetic dynamometry, and body composition (bioelectrical impedance).Despite the similar amount of moderate-to-vigorous PADL(median, 4.5h/week for smokers and 4.0h/week for non-smokers), smokers spent more time lying (median, 8.2h/week: 95% confidence interval, 5.4 to 19.1 vs. 6.1h/week: 3.7 to 11.2) and in sedentary activities (median, 100h/week: 66 to 129 vs. 78h/week: 55 to 122) compared to non-smokers. Smokers also presented worse spirometry, peak V’O2 and maximum heart rate in the CPET, 6MWT, and isokinetic indices (p<0.05). We observed a strong correlation between the time spent lying and spirometry (r = - 0.730) in smokers. Smoking is related to higher sedentary behavior, despite the suitable PADL. An appropriate PADL did not reduce the deleterious effects of smoking on physical capabilities. Interrupting sedentary behavior may be an appropriate intervention target in smokers for reducing the risk of diseases.
Fatores associados à eficácia no desempenho das ações técnico-táticas do voleibol
Authors: Salles William Das Neves , Collet Carine , Porath Margareth , Milistetd Michel , Nascimento Juarez Vieira do 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2017v19n1p74 The aim of the study was to investigate the factors associated to performance efficacy of technical-tactical actions in volleyball. Based on the protocol of the Instrument for Technical and Tactical Performance Assessment in Volleyball (IAD-VB), 44.025 match actions performed by male and female athletes from u-15, u-16 and u-17 finalist teams of the 2010 Santa Catarina Volleyball Championship in Brazil were observed. Data were analyzed on SPPS 21 software using the logistic regression technique, adopting 5% significance level for the interpretation of results. Adjusted model explained 51.40% efficacy variance, and the factors associated with this variable were decision making, adjustment, efficiency, and competition level.