bluuebunny/crossref_metadata_2025_split huggingface dataset:
Arremesso de medicine ball prediz potência de membro superior em jogadores de rugby sevens
Authors: Leite Marco Aurélio Ferreira de Jesus , Sasaki Jeffer Eidi , Lourenço Camilo Luis Monteiro , Zanetti Hugo Ribeiro , Cruz Lucas Gonsalves , Mota Gustavo Ribeiro da , Mendes Edmar Lacerda 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n2p166 The aim of this study was to develop an upper limb muscle power (PUL) prediction model using the Medicine Ball Throw Test (MBT) in rugby players. Eighteen amateur rugby players underwent the MBT test and the guided bench press exercise at 30, 40, 50 and 60% of 1. Myotest® accelerometer was positioned on the bench press bar to estimate muscle power. Linear regression was used to derive the upper limb muscle power prediction equation from the MBT distance. The residue analysis estimated the residual error of the predicted values using values obtained by Myotest®. Bland-Altman plots were used to verify agreement between actual and predicted upper limb muscle power, both in absolute Watts (W) and relative terms (W/kg of fat-free mass). There were significant correlations between actual and predicted upper limb muscle power (r = 0.834, 0.854, and 0.872) for intensities of 30%, 40% and 50%, respectively. Absolute bias of predicted values was -1.87 W (p <0.05). For muscle power predicted relative to fat-free mass, bias was 0.782 W/kg (p <0.05). Conclusion: The MBT test has high correlation with actual PUL values and it was found that the equation developed in this study has high accuracy to predict PUL in rugby players of both sexes.
Efeito da ordem dos exercícios sobre o número de repetições e volume de treino no método de treinamento tri-set
Authors: Faria Waynne Ferreira de , Farias João Paulo de , Corrêa Renan Camargo , Santos Claudinei Ferreira dos , Stabelini Neto Antonio , Santos Gessika Castilho dos , Marques Elias Rui Gonçalves 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n2p187 Although the tri-set system is widely adopted by athletes and experienced weight training practitioners aimed at optimizing the metabolic overload, there are still few works in literature on the effect of exercise order manipulation on this training system. Therefore, this work was aimed at investigating the effect of exercise order manipulation on the number of repeats and training volume using the tri-set system for lower limbs. This is a randomized cross-over design study. The experimental group consisted of 14 healthy men (23.53 ± 5.40 years; 24.51 ± 2.96 kg/m2). Subjects were submitted to two experimental sessions at different exercise order for lower limbs: Sequence A: squat on guided bar, leg press 45° and bilateral leg extension; sequence B: bilateral leg extension, leg press 45° and squat on guided bar. Three sets to volitional fatigue in all exercises were performed, with intensity of 75% 1RM. Superiority for sequence B in the total number of repeats (70.14 ± 13 vs 60.93 ± 7.94 repeats, p = 0.004) and total training volume (9129.64 ± 2830.05 vs 8238.29 ± 2354.20 kg, p = 0.014) was observed. Based on the above, the performance of single-joint exercises before multi-joint exercises in the tri-set system adopted for lower limbs induced higher number of repeats and total training volume.
Agreement analysis between critical power and intensity corresponding to 50% in cycling exercise
Authors: Souza Kristopher Mendes de , Lucas Ricardo Dantas de , Salvador Paulo Cesar do Nascimento , Helal Lucas Crescenti Abdalla Saad , Guglielmo Luiz Guilherme Antonacci , Greco Camila Coelho , Denadai Benedito Sérgio 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n2p197 The purpose of this study was to determine the level of agreement between critical power (CP) and intensity corresponding to 50% of the difference (50% Δ) between oxygen uptake (VO2) at lactate threshold (LT) and maximal oxygen uptake (VO2max) in untrained subjects during cycling exercise. Fifteen healthy male subjects (age: 26.0 ± 3.5 years; body weight: 76.6 ± 10.4 kg; height: 178.2 ± 7.6 cm) volunteered to participate in the study. Each subject performed a series of tests to determine LT, VO2LT, CP, VO2CP, 50% Δ, VO250% Δ, and VO2max. The values of LT, VO2LT, CP, VO2CP, 50% Δ, VO250% Δ and VO2max were 109 ± 15 W, 1.84 ± 0.23 L.min-1, 207 ± 17 W, 2.78 ± 0.27 L.min-1, 206 ± 19 W, 2.77 ± 0.29 L.min-1, and 3.71 ± 0.49 L.min-1, respectively. No significant difference was found between CP and 50% Δ (t = 0.16; p = 0.87) or between VO2CP and VO250% Δ (t = 0.12; p = 0.90). However, the bias ± 95% limits of agreement for comparison between CP and 50% Δ and between VO2CP and VO250% Δ were 1 ± 27 W (0.3 ± 14.1%) and 0.01 ± 0.24 L.min-1 (0.2 ± 8.9%), respectively. In summary, the mean CP and 50% Δ values were not significantly different. However, considering the limits of agreement between the two intensities, CP estimated based on 50% Δ might result in a remarkable error when the absolute variability of individual differences is taken into account
Validity and reliability of scales on intrapersonal, interpersonal and environmental factors associated with physical activity in Brazilian secondary students
Authors: Barbosa Filho Valter Cordeiro , Rech Cassiano Ricardo , Mota Jorge , Farias Júnior José Cazuza de , Lopes Adair Da Silva 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n2p207 This study aimed to examine the validity and reliability of scales of intrapersonal, interpersonal, and environmental factors associated with physical activity (PA) in secondary students. Two cross-sectional studies were conducted with students in 7th to 9th grades form secondary schools in order to test the validity, internal consistency (n = 1,178, 51.4% were boys), and test–retest reproducibility (n = 194, 56.2% were boys) of the instrument. Factors associated with PA (attitude, self-efficacy, social support of friends, parents and the school’s teachers, as well as the perceived neighborhood environment and perceived school environment) were measured. The confirmatory factor analysis and Spearman correlation between the scales and the weekly time spent in moderateto-vigorous PA (measured by questionnaire) were applied to test the construct validity. For reliability, the Cronbach’s α (internal consistency), composite reliability (CR) and intraclass correlation coefficient (ICC for test–retest reproducibility) were applied. The confirmatory factorial analysis showed five one-dimensional and two two-dimensional (self-efficacy and perceived environment) scales, with factor loadings ranging from 0.46 to 0.85. Significant and positive correlations between almost all scale scores and moderateto-vigorous PA (p<0.05) were found. The Cronbach’s α and CR were greater than 0.70 in almost all scales (except perceived school environment, α and CR of 0.61) and the ICC ranged from 0.62 (parental social support) to 0.70 (self-efficacy). In conclusion, the scales showed acceptable validity and reliability and can be used for measuring of PA correlates in elementary students.
Associação entre a participação na Educação Física escolar e a prática de esportes coletivos durante a universidade
Authors: Sousa Thiago Ferreira de , Barbosa Aline Rodrigues , Santos Sueyla Ferreira da Silva dos , Alvarenga Ana Maria , Fonseca Silvio Aparecido , Nahas Markus Vinicius 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n2p222 The practice of team sports such as soccer and volleyball, are one of the main activities practiced by college. The objectives of the study were to compare the proportions of practice team sports in the years 2010, 2012 and 2014 in college and to analyze the association between participation in the classes of Physical Education, before entering university, with the practice team sports during the university period. Three cross-sectional surveys were conducted in the years 2010, 2012 and 2014, with students from a higher education institution. The dependent variable was the current practice of team sports and the independent variable the participation, prior to entering the university in Physical Education classes at school. Participated 1,084, 1,085 and 1,041 college in 2010, 2012 and 2014, respectively. The proportion of practicing team sports was stable in the three surveys and college who participated regularly of the lessons of Physical Education, prior to entering the university showed higher prevalence ratios (PR) practice of team sports during college years (2010, RP: 2.87; 95%CI: 1.48; 5.55; 2012, RP: 2.04; 95%CI: 1.14; 3.65; 2014, RP: 4.06; 95%CI: 1.58; 10.43). The number of students practicing team sports was similar in all investigated years and regular participation of college in Physical Education classes in school, period prior to entering university showed a positive association with practice of team sports at the university.
Comparison study of resistance exercise nomenclature adopted among professionals and undergraduate physical education students
Authors: Souza Leonardo Mendes de , Paz Gabriel Andrade , Straatmann Viviane Schultz , Miranda Humberto 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n2p233 In the past few years, increased popularity of resistance training (RT) and a significant increase in the number of professionals and undergraduate in Physical Education students have been observed. A variety of names has been usually adopted for the same resistance exercise in fields. The aim of the study was to compare the resistance exercise nomenclature adopted by physical education professionals and students, and also to identify the frequencies of names adopted for these resistance exercises. The study included 191 graduate students and active physical education professionals of RT centers and gyms in the state of Rio de Janeiro, Brazil. Ten exercises traditionally performed on RT programs were selected. The results indicated that there was no association between the nomenclature of exercises and academic degree for all exercises included in the survey. However, there was significant difference (p <0.001) among response frequencies for each exercise, for the whole sample. In this sense, this study enabled identifying significant differences in the nomenclature of resistance exercises. Therefore, nomenclature standardization is essential to establish a direction and clearness in communication among professionals.
Contributo da Educação Física na área do esporte, atividade física, saúde e educação para as crianças e jovens que vivem com o HIV
Authors: Augustemak de Lima Luiz Rodrigo , Teixeira Davi Monteiro , Santos Elisabete Cristina Morandi dos , Petroski Edio Luiz 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n2p243 This narrative review examined documents that show the activity of Physical Education professionals for children and young people living with HIV. Forty documents were analyzed, highlighting the main contributions: 1) Sports / Physical Activity for social inclusion of youth in social vulnerability, reducing discrimination and stigma and development of motor skills; 2) Health, for treatment adherence, sexual and reproductive health, functional assessment, prescription, guidance and supervision of physical exercises; 3) Education, for prevention of infection / re-infection with HIV, education for sexual and reproductive health. These interventions include major initiatives to improve the quality of life and to coping the pandemic of HIV in children and young people.
FTO gene variant and association with overweight in Brazilian male students
Authors: Moraes José Fernando Vila Nova de , Laitano Orlando , Sales Marcelo Magalhães , Asano Ricardo Yukio , Souza Vinícius Carolino de , Nóbrega Otávio De Toledo , Campbell Carmen Sílvia Grubert 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n3p259 Obesity is considered a disease with multiple etiologies. Recent advances in technology have pointed candidate genes that are related to weight gain in several populations. However, in countries with ethnic miscegenation, such as Brazil, studies of this nature with students are still scarce. The aim of the present study was to compare anthropometric variables of Brazilian male students according to the genotypes of the rs9939609 of the FTO gene. In order to do so, 205 participants underwent body mass, height, waist circumference and skinfold thickness measurements. Body mass index (BMI), waist-to-height ratio and body fat percentage were calculated. Volunteers were characterized as overweight according to the BMI-for-age z-score. Participants were genotyped according to the single nucleotide polymorphism rs9939609 of the FTO gene (AA, AT and TT). ANOVA one-way with Bonferroni’s post hoc was performed to compare genotypes and anthropometric variables. Odds Ratio was calculated to reveal increased chances of presenting higher body mass index z-score, waist-to-height ratio and body fat percentage. Participants homozygous for the A allele presented significantly higher values of BMI-for-age z-score (0.38±1.01 vs. -0.29±1.15), waist circumference (77.15±6.51 vs. 72.85±7.36 cm) and waist-to-height ratio (0.44±0.04 vs. 0.42±0.04) when compared to individuals with the TT genotype. The A allele of the rs9939609 of the FTO gene seems to influence in the adiposity of male students.
Excesso de peso e fatores associados em servidores do Sul do Brasil
Authors: Gonçalves Eliane Cristina de Andrade , Silva Diego Augusto Santos , Nunes Heloyse Elaine Gimenes , Lima Tiago Rodrigues de , Capdeboscq Majorie Catherine , Rinaldi Wilson 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n3p277 This study aimed to estimate the prevalence of overweight and investigate its association with sociodemographic factors, physical activity level, hypercholesterolemia, and diabetes in civil servants of a university in the state of Paraná, Brazil. The research was conducted with 339 civil servants aged above 18 years. Overweight was analyzed by self-reported body mass index. Physical activity level was evaluated using a questionnaire. Sociodemographic data (sex, age, economic status, educational level, marital status, and working hours) and information on the chronic diseases of interest (hypercholesterolemia and diabetes) were obtained from self-report. The association between overweight and the other variables was investigated using binary logistic regression. The prevalence of overweight was 50.6%. The groups most susceptible to overweight were: male civil servants (OR: 2.04; CI: 1.30-3.22), those less than 12 years of education (OR: 2.46; CI: 1.43-4.23), who were insufficiently active (OR: 1.64; CI: 1.03-2.60), and those with hypercholesterolemia (OR: 2.28; CI: 1.32-3.96). This study concluded that more than a half of the sample was overweight and that this condition was associated with male sex, educational level below 12 years, insufficient physical activity, and hypercholesterolemia.
Reprodutibilidade do teste de caminhada de 6 minutos e marcadores autonômicos cardíacos em idosas ativas e sedentárias
Authors: Fonteles André Igor , Machado Daniel Gomes da Silva , Agrícola Pedro Moraes Dutra , Nascimento Neto Luiz Inácio , Moreira Sérgio Rodrigues , Elsangedy Hassan Mohamed , Chao Cheng Hsin Nery , Okano Alexandre Hideki 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n3p287 The aim of this study was to examine the reliability of the 6-minute walk test (6MWT) and post-exercise cardiac autonomic markers in physically active and sedentary older women. Eighteen physically active older women (64.2±3.1 years; 63.0±2.7 kg; 1.52±0.06 m; 26.9±2.7 kg.m-2) who performed Tai Chi Chuan for at least 6 months, and 18 sedentary older women (64.0±3.7 years; 63.8±8.9 kg; 1.49±0.05 m; 28.4±3.5 kg.m-2) were submitted to 6MWT in two separate occasions. Immediately after 6MWT, heart rate recovery at one (HRR1’) and two minutes (HRR2’), as well as the heart rate variability (HRV) were recoded. Reliability was verified by intraclass correlation coefficient (ICC) with 95% confidence interval, Bland-Altman plots were used as a measure of agreement, and coefficient of variation (CV) was calculated. High reliability (ICC=0.86) was found for performance in 6MWT (528.8 ± 71.4 m and 473.2 ± 62.4 m; CV=7.9 and VC=8.5%) in both groups. Likewise, high reliability (ICC≥0.84 and ICC≥0.80) was found for HRR 1’ (29.0±11.0 bpm and 17.0±8.0 bpm; VC=30.1% and VC =40.2%) and HRR 2’ (36.0±10.0 bpm and 24.0±9.0 bpm; VC =23.7% and VC =22.8%) in both groups. Regarding HRV, moderate reliability was found in the active group (CCI≥0.57; VC =35-47%), while moderate-high reliability was found in the sedentary group (CCI=0.65-0.76; VC=34-69%). Agreement was found for all variables analyzed. In conclusion, post-exercise 6MWT, HRR, and HRV are reliable tools to assess functional capacity and cardiac autonomic control in physically active and sedentary older women.
Desempenho em 200 m nado crawl: índice de coordenação, tempo propulsivo e cinemática de nado
Authors: Franken Marcos , Ludwig Renato Ferraro , Cardoso Tiago Perin , Silveira Ricardo Peterson , Castro Flávio Antônio de Souza 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n3p311 The aim of this study was to compare coordination index, propulsive time, duration of stroke phases and kinematic parameters over 200 m front crawl. Variables were compared among four sections of 50 m (T1 to T4) in fifteen competitive swimmers (age: 21.1 ± 7.1 years; height: 180.1 ± 6.1 cm; height: 187.3 ± 8, 1 cm; body mass: 72.1 ± 10.1 kg; better performance in the race: 77.5 ± 4.7% of the world record). Data were obtained with two video cameras (60 Hz - coupled to a cart on rails on the side of the pool) for simultaneous images of the swimmer’s sagittal plan: below the water line and above the water line. Mean stroke rate stroke length, assumed as the mean distance traveled per cycle, and mean swimming speed were obtained with manual timing. Over the 200 m, the coordination index remained unchanged (p >0.05), but there was an increase in the frequency of cycles (p <0.05) and reduction of distance traveled per cycle (p <0.05). Between T1 and T2, there was an increase in the propulsive time (p <0.05) and between T1 and T4, there was an increase in the length of the pull phase (p <0.05). The swimming speed decreased only between T1 and T2 (p <0.05). Over 200 m front crawl, well-trained swimmers increment propulsive time and pull phase duration and frequency of stroke cycles, and such changes may be due to the speed maintenance attempt over the 200 m.
Time-course of changes in indirect markers of muscle damage responses following a 130-km cycling race
Authors: Rodrigues Patrick , Wassmansdorf Renata , Salgueirosa Fabiano Macedo , Hernandez Sara Gabellone , Nascimento Vitor Bertoli , Daros Larissa Bobroff , Wharton Lee , Osiecki Raul 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n3p322 The purpose of the present investigation was to identify the effects of a 130-km cycling race on indices of biochemical indirect markers of muscle damage and muscle soreness responses during a 72-hour recovery period. Fifteen endurance-trained male cyclists which were competing for more than 2 years and were involved in systematic training at least of 3 days/wk underwent a collection of indirect biochemical markers of muscle damage (CK, LDH, Myo) and delayed onset of muscle soreness (DOMS), at five different moments of data collection: before (PRE) and immediately after (POST) a 130-km cycling race, and 24, 48, 72 hours following the cycling race. CK and LDH plasma concentrations significantly increased POST-race (p < 0.001) and remained high throughout the 72 hour recover period (CK: p < 0.05; LDH: p < 0.001). Myo increased significantly POST-race (p < 0.001) and returned to the PRE-race values 24 hours thereafter (p < 0.05). DOMS increased significantly POST-race (p < 0.001) and returned to the PRE-race values at 48 hours after (p > 0.05). A 130-km cycling race has a noteworty effect on indices of biochemical indirect markers of muscle damage and muscle soreness responses, indicating that 72 hour recovery period do not seems to be enough for long-distance cyclist, and reinforce the propositions of scientific literature about the need of a sufficient recovery period for cycling endurance athletes.
Efeitos da crioterapia e da diatermia por micro-ondas sobre a capacidade de produção de força de flexores de cotovelo de homens saudáveis
Authors: Schleder Juliana Carvalho , Müller Andrelize , Fernandes Walkyria Vilas Boas , Capote Andrielle Elaine 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n3p332 Physiological effects of thermal changes in tissues might influence some physical properties of muscle fibers, such as strength. The aim of this study was to compare the effects of cryotherapy and microwave diathermy application on the strength production capacity of the elbow flexor muscles. Thirty male, healthy and sedentary subjects, with average age of 22.40 (±3.42) years, participated in this prospective study. Participants were submitted to assessment of isometric strength production capability by an adapted load cell. Half of volunteers received cryotherapy on the first day of application and microwave diathermy (MD) 48 hours later, whereas the other half was treated the other way around. Cryotherapy was applied up to the temperature of the biceps region reached 25ºC, and MD was applied up to 42ºC. Six peak strength reevaluations were made over 2 hours. There was significant increase in peak strength (PS) up to 15 minutes after cryotherapy, then there was a decrease in maximum isometric strength, however, statistically significant difference remained up to 1 hour and 30 minutes after cryotherapy. In MD, PS decreased significantly after application until 15 min. From this moment, PS returned close to the initial value, and in the last assessment, PS reduced again. Cryotherapy and MD differently interfered in isometric muscle strength production capacity of elbow flexors, while cooling generated increment, heating caused decline.
A influência da habilidade técnica na tomada de decisão de jogadores iniciantes de voleibol
Authors: Lopes Mariana Calábria , Magalhães Raiane Teixeira , Diniz Laura Beatriz Faleiro , Moreira João Paulo Abreu , Albuquerque Maicon Rodrigues 
Published: December 2017

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n3p362 The aim of this study was to verify the influence of the technical skills level on the decision making of novice volleyball players on service, reception and set actions. The sample was composed of 80 novice athletes of school volleyball teams of both sexes. Based on the results from the Volleyball Skills Test Battery, the sample was divided into three groups: low, intermediate and high technical level, by means of One-Way ANOVA. The intermediate group was excluded from further analyses. Decision making was assessed with the Game Performance Assessment Instrument (GPAI). For data analysis purposes, the independent student-t test was used, adopting significance level of p≤0.05. The results showed that players with low skill level in service and set actions also had lower performance on the decision-making test when compared to players with high technical level. On the other hand, in the reception action, no differences were found among groups. It was therefore concluded that the technical level seems to influence the decision making in service and set actions in novice volleyball players.