Motriz: Revista de Educação Física最新文献

{"title":"Cross-cultural comparisons of motor competence in southern Brazilian and Portuguese schoolchildren","authors":"F. S. Flôres, L. Rodrigues, C. Luz, R. Cordovil","doi":"10.1590/S1980-657420210018420","DOIUrl":"https://doi.org/10.1590/S1980-657420210018420","url":null,"abstract":"Abstract Aim: This study aimed to compare the MC levels of Brazilian and Portuguese schoolchildren from 4 to 11 years. Methods: One hundred and forty-eight Brazilian children were evaluated using the Motor Competence Assessment (MCA) instrument and were later compared to the existent normative values of Portuguese children for a similar age range. Results: Our findings showed that MC increased with age, and boys outperformed girls, especially in the older age group. The distribution of the Brazilian children showed that while Brazilian boys perform above Portuguese normative values in 4 of the 6 tasks of the MCA, Brazilian girls perform below those values in all tasks, except for the standing long jump. Conclusion: The differences found, especially in girls, may be related to differences in the Physical Education curricula and how school recess periods are used.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126727346","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}

{"title":"Physical, psychological and demographic factors associated with military discharge: a systematic review","authors":"G. M. Fidelis, M. E. Miranda, P. Bunn","doi":"10.1590/S1980-65742021004820","DOIUrl":"https://doi.org/10.1590/S1980-65742021004820","url":null,"abstract":"Abstract Aims: The present study is a review focused on analyzing the physical, psychological, and demographic factors that lead recruits to be dismissed or to request their dismissal during basic military training periods. Methods: This study is a systematic review of cohort studies. The following databases were searched in June 2019 and updated in July 2020: Embase, LILACS, CINAHL, Cochrane, MEDLINE, SCOPUS, SPORTDiscus, Web of Science, and Science Direct databases. The MeSH descriptors military personnel, risk factors, and discharge were used to elaborate the search equations. Reference lists were explored to find studies that examined the association between physical, psychological, and demographic factors that lead recruits to be discharged. The following data were extracted from the studies: profile of the participants, sample size, type of risk factors, the duration of follow-up, and the results of the statistical analysis carried out in the studies included. The risk of bias was analyzed with the Newcastle-Ottawa Scale for cohort studies. Results: A total of 531 titles were retrieved from the databases, and eight articles met the eligibility criteria. The results showed the factors associated with discharge, in descending order: musculoskeletal injuries and other medical questions, depressive and behavioural disorders, performance in physical fitness tests, and others. Factors such as educational level, alcohol use, history of suicide attempt, and imprisonments were not associated with an increased risk of being discharged. Conclusion: Musculoskeletal injuries, depression, running performance, previous physical exercise practice, and demographic factors were associated with an increased risk of being discharged.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126647381","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}

{"title":"Can exergames be used as an alternative to conventional exercises?","authors":"LE Silva, F. S. Flôres, Silvana Corrêa Matheus","doi":"10.1590/s1980-65742021019720","DOIUrl":"https://doi.org/10.1590/s1980-65742021019720","url":null,"abstract":"Abstract Aim: The present study aimed to analyze if the exergaming exercise produces the same acute effects as conventional training. Methods: The Nintendo® Wii was chosen as the stimulus for this study. Participants should conduct a physical training session under Exergames Training (ET) and Conventional Training (CT). Both training conditions use two aerobic exercises and six strength exercises, which were always performed in the same sequence. The study group was composed of 30 young adults (16 men and 14 women, mean age of 23.7 ± 3.7 years). Results: Our findings showed significant results between pre and post-tests: the heart rate (HR) and the double product (DP) were higher in the post-exercise period, while the systolic blood pressure (SBP) was lower. Further analysis revealed that ET and CT conditions had no significant differences. ET condition showed to present similar results as CT condition to women (regarding HR, diastolic blood pressure - DBP, and DP), and to men (HR, SBP, and DBP). Conclusion: The present research showed that exergaming provides the same acute effects in physiological variables as conventional exercises. Thus, this kind of exercise can be a reliable way to improve the lifestyle of young adults.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123973922","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}

{"title":"The intensities of various forms of physical activity in physical education programs offered by universities for female students","authors":"R. Podstawski, M. Zurawik, C. Clark, F. Ihász, P. Żurek","doi":"10.1590/s1980-65742020000400089","DOIUrl":"https://doi.org/10.1590/s1980-65742020000400089","url":null,"abstract":"- Aim: This study aimed to evaluate the effectiveness of various forms of physical activity (PA) among female students in physical education (PE) programs offered by universities in Poland, Hungary, and the United Kingdom. Methods: Two hundred full-time female university students (mean age: 19.93±0.82) enrolled in various PA programs. The participants’ anthropometric traits were measured, and their body composition parameters were determined with the InBody analyzer. Based on the students’ physiological parameters, the effectiveness of various types of PA was measured with Suunto Ambit3 peak heart rate monitors during 60 minutes of physical exertion. Results: The average values of body mass index (BMI), body fat mass (BFM), percent body fat (PBF), waist-hip ratio (WHR), visceral fat level (VFL), and obesity degree were significantly (p<0.05) lower among students who participated in jogging followed by sauna (JFBS), performed martial arts and attended general physical education (PE) classes. Physiological parameters were the highest in the martial art group, followed by JFBS and swimming groups, and they were significantly (p<0.05) higher than the values recorded in other PA groups (golf, aerobics, general PE classes, cycling, and individual training). Physiological parameters were significantly (p<0.05) lower among students who played golf and trained individually. Conclusions: Martial arts, JFBS, and swimming were the most effective types of PA among female university students. Students performing martial arts and JFBS had relatively lower body fat levels, whereas students who practiced swimming had the highest body fat levels in the population sample.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130267641","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}

{"title":"Effects of different methods of strength training on indicators of muscle fatigue during and after strength training: a systematic review","authors":"Guillermo Barahona-Fuentes, Á. H. Ojeda, D. Jérez-Mayorga","doi":"10.1590/s1980-6574202000030063","DOIUrl":"https://doi.org/10.1590/s1980-6574202000030063","url":null,"abstract":"Introduction: The development of strength has shown to be beneficial to sports performance and health. However, during strength training, they also produce alterations in muscle fatigue indicators, leading to a decrease in the ability to generate strength. Despite this, there is still not enough knowledge about the levels of muscle fatigue generated by different methods of strength training and how this information can be integrated into sports planning. Review and analyze the studies existing between January 2009 and January 2019 that have used indicators of muscle fatigue established in the search terms during and after strength training as measurement variables. Evidence acquisition: The study corresponds to a systematic review of previously published studies, following the PRISMA model. Articles published between 2009 and 2019 that measured muscle fatigue indicators during and after strength training were evaluated. The electronic search was conducted through Web of Science, Scopus, Sport Discus, PubMed, and Medline. We included all articles that used a strength protocol and also measured indicators of muscle fatigue and its possible effect on physical performance. Evidence synthesis: A total of 39 articles were found, which were stratified according to the protocol used: (i) plyometric training, (ii) Bodypump® training, (iii) occlusion training, (iv) variable resistance training, (v) conventional strength training, (vi) eccentric strength training, (vii) rest times in strength training and (viii) concurrent training. Conclusion: At the end of the systematic review, it was shown that the different training methodologies for strength development generate increases in muscle fatigue indicators, and the increase generated in the different muscle fatigue indicators depends both on the methodology used and on the type of population, sex, level of training and type of sport. The most-reported indicators are [La], HR and RPE, DOM, MR variation, and ammonium.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124310975","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}

{"title":"Body composition of male and female Chilean powerlifters of varying body mass","authors":"Patricio Palma-Lafourcade, Diego Cisterna, Jordan Hernandez, Rodrigo Ramirez-Campillo, C. Álvarez, J. Keogh","doi":"10.1590/S1980-6574201900010018","DOIUrl":"https://doi.org/10.1590/S1980-6574201900010018","url":null,"abstract":"– Aim: To examine body composition of Chilean powerlifters according to body mass and sex. Methods: Fifty-six male and female powerlifters were recruited from one national competition. Aside from the official weight categories, males were classified as the lightweight, middleweight, and heavyweight classes. Similarly, females were classified as lightweight and middle-heavyweight classes. Nineteen anthropometric measures were assessed, with lean mass as the main outcome. A one-way ANOVA was used to compare groups. Results: Male lightweight class lifted less (p<0.01) total load (417±30.9 kg) compared to heavier male classes (524±66.7 kg, middleweight; 581±131 kg, heavyweight), and female classes lifted less (p<0.01) total load (221±33.8 kg, lightweight; 254±48.3 kg, middleweight-heavyweight) compared to all male classes. Regarding lean-mass in trunk, arms and legs, total body protein, water, and mineral mass, all male groups had greater (p<0.01) values than the groups of females, while lightweight males had lower (p<0.01) values than the rest of male groups, and heavyweight males had greater (p<0.01) values than the total sample of males (except for legs lean mass, and total bone mineral content). In females, no significant differences were observed between classes, or in total load lifted or in body composition. Conclusion: Heavier male lifters had significantly greater lean mass than lighter athletes. Therefore, powerlifting performance was affected by anthropometric measures, as corroborated by 1-RM scores. However, there was a general lack of differences in body composition between female weight classes, and, as a result, a lack of differences in 1RM performance.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130916622","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}

{"title":"Psychometric properties of the Questionnaire of Attitudes towards Doping in Fitness (QAD-Fit)","authors":"A. Tavares, S. Serpa, A. Rosado","doi":"10.1590/S1980-6574201900020013","DOIUrl":"https://doi.org/10.1590/S1980-6574201900020013","url":null,"abstract":"– Aim: The purpose of this study was to test the psychometric proprieties of the Questionnaire of Attitudes towards Doping in Fitness (QAD-Fit), originally developed by Serpa and colleagues and adapted to Portuguese gym/ fitness context. Methods: A cross-sectional survey utilizing a web self-administered questionnaire was used. The sample was composed of 453 gym/fitness center practitioners, aged between sixteen and seventy-nine years old (M = 35.64; SD = 13.08), enrolled in several gym activities. Results: The confirmatory factorial analysis provided support to the four-factor structure proposed. All factors displayed good internal consistency, convergent validity, and discriminant validity. The multi-group analysis revealed cross-validity and the model ́s invariance. The correlation between QAD-Fit and the Doping-related Theory of Planned Behavior Measures (DRTPBM) revealed evidence of its concurrent validity. Conclusion: The findings of this research revealed that QAD-Fit is a psychometrically valid and reliable instrument to assess attitudes towards doping consumption in gym and fitness settings.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"38 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131809893","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}

{"title":"Multivariate linear regression analysis to evaluate multiple-set performance in active and inactive individuals","authors":"F. Suzuki, A. Paulo, Marcos R. R. Pauksnis, A. Evangelista, M. M. Kalytczak, F. Politti, R. L. Rica, A. Serra, Adriano F. Maia, J. Baker, B. Schoenfeld, D. Bocalini","doi":"10.1590/S1980-6574201900010008","DOIUrl":"https://doi.org/10.1590/S1980-6574201900010008","url":null,"abstract":"","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134311260","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}

{"title":"Effects of linear and undulating periodization of strength training in the acceleration of skater children","authors":"D. Jaimes, Dennis Contreras, Alejandra María Franco Jiménez, D. Orcioli-Silva, F. Barbieri, L. T. Gobbi","doi":"10.1590/S1980-6574201900010007","DOIUrl":"https://doi.org/10.1590/S1980-6574201900010007","url":null,"abstract":"– Aim: This study aimed to compare the effects of linear periodization (LP) and undulating periodization (UP) of strength training on acceleration in skater children. Methods: Twenty-nine girls (9.67±1.29 years-old, 34.47±8.06kg, 1.39±0.13m) were distributed into two groups: linear periodization group (LPG, n=14) and undulating periodization group (UPG, n=15). Six levels of progressive training were designed based on activities such as multi-jumps, plyometrics, sled towing, and facilitated exercises. The training lasted 16 weeks, with a 1-h session on three nonconsecutive days per week. The acceleration was recorded by digital videography following the major trochanter of the femur, at four moments and under two conditions: static (SS) and dynamic start (DS) in a rectilinear path. Statistical significance was set at 5%. Results: ANOVA indicated group*moment interaction in SS and DS for velocity (F3,81=7.883; p<0.001; pη2=0.226; F3,81=2.36; p=0.078; pη2=0.08-trend, respectively) and acceleration (F3,81=3.96; p=0.011; pη2=0.128; F3,81=2.92; p=0.039; pη2=0.098, respectively). Both groups increased velocity in SS and DS (UPG/SS: 1st=4.07, 2nd=9.75, 3rd=8.91, 4th=9.25m/s; LPG/SS: 1st=4.27, 2nd=7.13, 3rd=7.61, 4th=7.99m/s; UPG/DS: 1st=8.30, 2nd=8.73, 3rd=8.12, 4th=9.27m/s; LPG/DS: 1st=8.20, 2nd=8.31, 3rd=7.90, 4th=8.96m/s) and acceleration (UPG/ SS: 1st=2.00, 2nd=8.69, 3rd=4.71, 4th=5.02m/s2; LPG/SS: 1st=2.37, 2nd=3.39, 3rd=3.68, 4th=4.12m/s2; UPG/DS: 1st=1.78, 2nd=1.97, 3rd=1.65, 4th=2.46m/s2; LPG/DS: 1st=1.67, 2nd=1.70, 3rd=1.48, 4th=1.93m/s2). Conclusion: Both strength training periodization protocols were effective in developing acceleration and velocity in girl skaters over 16 weeks; however, UP was more efficient than LP for improving acceleration.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114923235","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}

{"title":"A detailed comparison of oxygen uptake kinetics at a range of exercise intensities","authors":"C. Clark, S. Draper","doi":"10.1590/S1980-6574201900010010","DOIUrl":"https://doi.org/10.1590/S1980-6574201900010010","url":null,"abstract":"It is believed that exercise performed in the heavy intensity exercise (above Gas Exchange Threshold (GXT)) domain will reach a steady state (albeit delayed). However reported modelled time constants for the slow component indicate the VO² response would not be complete within the duration of the exercise performed. This raises important questions regarding the concept of heavy intensity exercise and the suitability of current exponential models to describe the slow component of VO². .The purpose of this study was; to comprehensively describe the relationship between exercise intensity and the slow component of VO², and to investigate whether a \u0000steady-state in VO² was achieved during constant work-rates above the gas exchange threshold (GXT). Eight recreationally active male participants volunteered for this study (age: 24±8 y; Stature: 1.78±0.09 m; mass: 76.5±10.1 kg; VO²peak: 3.89±0.72 L.min-1). The participants were required to visit the laboratory on nine occasions for testing. The first visit involved determination of GXT and VO²peak with a progressive ramp exercise test. The following tests involved multiple laboratory visits, with the participants performing a square wave transition from rest to one of eight exercise intensities; -20%Δ (minus 20% of the difference in VO² between that at GXT and VO2peak), -10%Δ, GXT, 10%Δ, 20%Δ, 30%Δ, 40%Δ and 50%Δ. The VO² response was modelled using both mono and bi exponential non-linear regression techniques. Difference in the SEE for the mono and bi exponential models were analysed using a paired samples t-test, and the slope of VO² vs Time (for the final minute of exercise) was analysed using a one-sample t-test. A slow component of VO² was found for all exercise intensities. The SEE’s were significantly lower in the bi vs. mono exponential model across all exercise intensities (p<0.05). The slope was not different from 0 (p<0.05) for the final minute of any exercise intensity, indicating that a steady-state was achieved. The modelled slow component time constants are typical of literature reported values, but would indicate that VO² would not be achieved during the duration of the exercise. These findings demonstrate that VO² was in steady-state for all exercise intensities for the final minute of exercise. These findings also demonstrate that using a bi exponential model, a slow component can be modelled even below GXT and that the time constant of the slow component would be too long to result a steady-state.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130884569","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}