Pub Date : 2021-08-13DOI: 10.1590/s1980-65742021006121
Jônatas Augusto Cursiol, C. Barreira
Abstract Aim: Through reports of the athletes with disabilities interviewed, this study aimed to understand how the experiences lived in mainstream sports occur among people without disabilities. Methods: Husserl's classic phenomenology was the methodological framework adopted. The phenomenological interview was carried out with an intentional sample that included six athletes with some type of physical disability and later its recording was transcribed for the procedures of phenomenological reduction and intentional crossing to explain the meaning of what is experienced by these athletes in mainstream sport. Results: Five categories essentially describe how these experiences occur: operational body barred in the world; shaping the movement; the invisibility of disability; determination stimulus; and normalization of social relations in mainstream sports. These experiences correspond to a dynamic process in which each part does not necessarily follow the other. Conclusion: The experience in mainstream sports allowed the interviewees to improve their experience of capacity, self-efficacy, and recognition through the mutuality between self-perception and the expectation of acceptance by society.
{"title":"The experience of athletes with disabilities in mainstream sports: an interpretative phenomenological analysis","authors":"Jônatas Augusto Cursiol, C. Barreira","doi":"10.1590/s1980-65742021006121","DOIUrl":"https://doi.org/10.1590/s1980-65742021006121","url":null,"abstract":"Abstract Aim: Through reports of the athletes with disabilities interviewed, this study aimed to understand how the experiences lived in mainstream sports occur among people without disabilities. Methods: Husserl's classic phenomenology was the methodological framework adopted. The phenomenological interview was carried out with an intentional sample that included six athletes with some type of physical disability and later its recording was transcribed for the procedures of phenomenological reduction and intentional crossing to explain the meaning of what is experienced by these athletes in mainstream sport. Results: Five categories essentially describe how these experiences occur: operational body barred in the world; shaping the movement; the invisibility of disability; determination stimulus; and normalization of social relations in mainstream sports. These experiences correspond to a dynamic process in which each part does not necessarily follow the other. Conclusion: The experience in mainstream sports allowed the interviewees to improve their experience of capacity, self-efficacy, and recognition through the mutuality between self-perception and the expectation of acceptance by society.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116663335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-21DOI: 10.1590/s1980-65742021003221
Patrícia Castro, A. S. Ferreira, A. Lopes, Tainah de Paula, Roberto Miranda Ramos Costa, F. Cunha, P. Vigário
Abstract Aim: Spinal cord injury (SCI) is associated with changes in cardiac autonomic control, that can be evaluated by heart rate variability (HRV), for which the electrocardiogram (ECG) is the gold standard. However, the use of ECG is limited to laboratory environments, and new tools are needed for this purpose and that can be applied in the routine monitoring of individuals with SCI. The present study aimed to investigate the validity of the Polar V800 heart rate monitor in assessing the cardiac autonomic control of individuals with SCI. Methods: Nineteen adult men with SCI (paraplegia n = 10; 44.5 ± 8.5 years and tetraplegia n = 9; 34.4 ± 7.5 years) participated in this cross-sectional study. The participants remained in the sitting position at rest for 10 min for the acquisition of the ECG and Polar V800 signals. The last 5-min window was used to count the beat-by-beat R-R interval series and then calculate the HRV indices (linear methods in the time and frequency domains). The study subgroups were compared, and the validity of the measurements generated with a heart rate monitor was determined using the intraclass correlation coefficient (ICC2,1) and Bland-Altman graphs. Results: Agreement analyses for the R-R intervals, SDNN, rMSSD, PNN50, SD1, LF, HF, and LF: HF ratio tended to show reliability ranging from acceptable to excellent (ICC = 0.579-0.990; P = 0.043-0.001) and acceptably narrow limits of agreement within both the group with tetraplegia and the group with paraplegia. Conclusion: The Polar V800 heart rate monitor is a valid instrument for assessing HRV in individuals with paraplegia and tetraplegia.
{"title":"Validity of the Polar V800 heart rate monitor for assessing cardiac autonomic control in individuals with spinal cord injury","authors":"Patrícia Castro, A. S. Ferreira, A. Lopes, Tainah de Paula, Roberto Miranda Ramos Costa, F. Cunha, P. Vigário","doi":"10.1590/s1980-65742021003221","DOIUrl":"https://doi.org/10.1590/s1980-65742021003221","url":null,"abstract":"Abstract Aim: Spinal cord injury (SCI) is associated with changes in cardiac autonomic control, that can be evaluated by heart rate variability (HRV), for which the electrocardiogram (ECG) is the gold standard. However, the use of ECG is limited to laboratory environments, and new tools are needed for this purpose and that can be applied in the routine monitoring of individuals with SCI. The present study aimed to investigate the validity of the Polar V800 heart rate monitor in assessing the cardiac autonomic control of individuals with SCI. Methods: Nineteen adult men with SCI (paraplegia n = 10; 44.5 ± 8.5 years and tetraplegia n = 9; 34.4 ± 7.5 years) participated in this cross-sectional study. The participants remained in the sitting position at rest for 10 min for the acquisition of the ECG and Polar V800 signals. The last 5-min window was used to count the beat-by-beat R-R interval series and then calculate the HRV indices (linear methods in the time and frequency domains). The study subgroups were compared, and the validity of the measurements generated with a heart rate monitor was determined using the intraclass correlation coefficient (ICC2,1) and Bland-Altman graphs. Results: Agreement analyses for the R-R intervals, SDNN, rMSSD, PNN50, SD1, LF, HF, and LF: HF ratio tended to show reliability ranging from acceptable to excellent (ICC = 0.579-0.990; P = 0.043-0.001) and acceptably narrow limits of agreement within both the group with tetraplegia and the group with paraplegia. Conclusion: The Polar V800 heart rate monitor is a valid instrument for assessing HRV in individuals with paraplegia and tetraplegia.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115033763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-21DOI: 10.1590/s1980-65742021004421
M. Bim, A. Pinto, D. A. Silva, Anna Mestriner Rodrigues, A. Pelegrini
Abstract Aim: Handgrip strength is considered an important health indicator. It is extremely important to establish normative values so that the handgrip strength is correctly interpreted in adolescents. The present study aims to establish normative values of handgrip strength (HGS) for adolescents, according to chronological age and sexual maturation. Methods: Data from three large projects carried out in Florianopolis and Sao Jose, Santa Catarina were used, corresponding to a sample of 2,637 adolescents aged 14 to 19 years old of both sexes (1,428 girls). The HGS of the right and left hands was measured by a manual dynamometer, and total HGS being defined by the sum of the left hand and the right-hand strength. Sexual maturation was determined by the development of pubic hair. The percentiles 3, 10, 15, 25, 50, 75, 85, 90, and 97 were calculated for the right, left, and total HGS. The percentile ranges p85 (high) were used. ANOVA and Kruskal-Wallis tests were applied. Results: In boys, the mean total HGS ranged from 67.5 ± 16.5 to 86.9 ± 21.8 (p < 0.001) and 74.3 ± 17.5 to 82.2 ± 17.8 (p < 0.001) for age and sexual maturation, respectively, while in girls the mean HGS total ranged from 48.8 ± 11.3 to 56.4 ± 16.0 (p = 0.127) and 47.8 ± 10.6 to 54.3 ± 12.3 (p < 0.001). Conclusion: Reference values established by the percentile score, can be used to identify adolescents with better athletic condition and can be useful for prescribing exercises.
{"title":"Normative values of handgrip strength in adolescents according to chronological age and sexual maturation","authors":"M. Bim, A. Pinto, D. A. Silva, Anna Mestriner Rodrigues, A. Pelegrini","doi":"10.1590/s1980-65742021004421","DOIUrl":"https://doi.org/10.1590/s1980-65742021004421","url":null,"abstract":"Abstract Aim: Handgrip strength is considered an important health indicator. It is extremely important to establish normative values so that the handgrip strength is correctly interpreted in adolescents. The present study aims to establish normative values of handgrip strength (HGS) for adolescents, according to chronological age and sexual maturation. Methods: Data from three large projects carried out in Florianopolis and Sao Jose, Santa Catarina were used, corresponding to a sample of 2,637 adolescents aged 14 to 19 years old of both sexes (1,428 girls). The HGS of the right and left hands was measured by a manual dynamometer, and total HGS being defined by the sum of the left hand and the right-hand strength. Sexual maturation was determined by the development of pubic hair. The percentiles 3, 10, 15, 25, 50, 75, 85, 90, and 97 were calculated for the right, left, and total HGS. The percentile ranges p85 (high) were used. ANOVA and Kruskal-Wallis tests were applied. Results: In boys, the mean total HGS ranged from 67.5 ± 16.5 to 86.9 ± 21.8 (p < 0.001) and 74.3 ± 17.5 to 82.2 ± 17.8 (p < 0.001) for age and sexual maturation, respectively, while in girls the mean HGS total ranged from 48.8 ± 11.3 to 56.4 ± 16.0 (p = 0.127) and 47.8 ± 10.6 to 54.3 ± 12.3 (p < 0.001). Conclusion: Reference values established by the percentile score, can be used to identify adolescents with better athletic condition and can be useful for prescribing exercises.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124085745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-21DOI: 10.1590/s1980-65742021018120
J. Costa, H. Spineli, P. Balikian Júnior, E. Prado, G. Araujo
Abstract Aim: This study aimed to compare the heart rate (HR) values and technical actions frequencies during small-sided (SSG) and generic (GG) games in women futsal players. Methods: Six futsal players (age: 20.5 ± 7.4 years, height: 163.3 ± 16 cm, body mass: 57.9 ± 22 kg, maximum rate of oxygen consumption (VO2max): 42.0 ± 9 mL.kg.min−1) performed two experimental conditions in two days separated for at least 72h of interval: (1) one set of 10 min of SSG, 3x3 players; and (2) one set of 10 min of GG, 4 (1 joker) x 4 (1 joker) players. During each experimental session, the subject's HR values were monitored every 1 min of play. Pass, shot, dribbling, driving, and disarmament were recorded during the games. Results: There was no difference between SSG and GG for HR average (p = 0.50). The HR values that were recorded at the first minute of GG were higher than SSG (p = 0.02). The HRmax in SSG and GG were equivalent to 91.9% and 90.8% of HRmax of the incremental test, respectively. Total technical actions were higher in SSG (+ 18.4%, p = 0.001) than GG. Pass was higher in the SSG (+16%; p = 0.01) in comparison to GG. Conclusion: Both models were higher than HRmax equivalent to AT velocity. The technical actions of the SSG were higher than GG, suggesting that the SSG model is a suitable technical and physiological stimulus for the development of female futsal players.
{"title":"Physiological and technical demands of the small-sided and generic games in female futsal players","authors":"J. Costa, H. Spineli, P. Balikian Júnior, E. Prado, G. Araujo","doi":"10.1590/s1980-65742021018120","DOIUrl":"https://doi.org/10.1590/s1980-65742021018120","url":null,"abstract":"Abstract Aim: This study aimed to compare the heart rate (HR) values and technical actions frequencies during small-sided (SSG) and generic (GG) games in women futsal players. Methods: Six futsal players (age: 20.5 ± 7.4 years, height: 163.3 ± 16 cm, body mass: 57.9 ± 22 kg, maximum rate of oxygen consumption (VO2max): 42.0 ± 9 mL.kg.min−1) performed two experimental conditions in two days separated for at least 72h of interval: (1) one set of 10 min of SSG, 3x3 players; and (2) one set of 10 min of GG, 4 (1 joker) x 4 (1 joker) players. During each experimental session, the subject's HR values were monitored every 1 min of play. Pass, shot, dribbling, driving, and disarmament were recorded during the games. Results: There was no difference between SSG and GG for HR average (p = 0.50). The HR values that were recorded at the first minute of GG were higher than SSG (p = 0.02). The HRmax in SSG and GG were equivalent to 91.9% and 90.8% of HRmax of the incremental test, respectively. Total technical actions were higher in SSG (+ 18.4%, p = 0.001) than GG. Pass was higher in the SSG (+16%; p = 0.01) in comparison to GG. Conclusion: Both models were higher than HRmax equivalent to AT velocity. The technical actions of the SSG were higher than GG, suggesting that the SSG model is a suitable technical and physiological stimulus for the development of female futsal players.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"66 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132407962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-19DOI: 10.1590/S1980-65742021002121
Filipe Silva Barreto, G. O. Carvalho, Laura Alberto da Silva, Vinicios Ribas dos Santos, Renêe Dominik Carvalho Pereira Osório, L. Nascimento, A. D. N. Feitosa, E. V. Assis, J. B. N. F. Silva
Abstract Aim: This study investigates the impact of social isolation, weight changes, and physical activity (PA) by the electronic tools (eTools) on the quality of life (QoL) of Brazilian medical students during the COVID-19 pandemic. Methods: In this observational longitudinal study, one hundred eighty-nine medical students completed an e-questionnaire, which used the WHOQOL-Bref instrument to report QoL and sociodemographic characteristics, health conditions, and lifestyles related to PA. Cronbach's alpha and Friedman/Dunn and Spearman's correlation tests were performed. Based on descriptive and inferential statistics, a multiple linear regression was used to evaluate the potential predictors of QoL. Results: The COVID-19 pandemic particularly affected the psychological and social domains. Time spent indoors and a non-ideal BMI had a negative impact on QoL. Being female and sexual minority-group membership were associated with lower QoL scores in the psychological and physical domains, respectively. Access to PA eTools was positively associated with QoL. Being monitored by a physical education teacher contributes to satisfactory PA levels during online classes. Conclusion: This study provides novel insights into the access of PA eTools on QoL during the COVID-19 pandemic. During periods of social distancing, people should pay extra attention to self-care strategies to protect mental health and promote positive lifestyle patterns. In addition, using online PA resources monitored by physical education teachers could be a strategy to maintain satisfactory levels of exercise.
{"title":"Electronic tools for physical activity and quality of life of medical students during COVID-19 pandemic social isolation","authors":"Filipe Silva Barreto, G. O. Carvalho, Laura Alberto da Silva, Vinicios Ribas dos Santos, Renêe Dominik Carvalho Pereira Osório, L. Nascimento, A. D. N. Feitosa, E. V. Assis, J. B. N. F. Silva","doi":"10.1590/S1980-65742021002121","DOIUrl":"https://doi.org/10.1590/S1980-65742021002121","url":null,"abstract":"Abstract Aim: This study investigates the impact of social isolation, weight changes, and physical activity (PA) by the electronic tools (eTools) on the quality of life (QoL) of Brazilian medical students during the COVID-19 pandemic. Methods: In this observational longitudinal study, one hundred eighty-nine medical students completed an e-questionnaire, which used the WHOQOL-Bref instrument to report QoL and sociodemographic characteristics, health conditions, and lifestyles related to PA. Cronbach's alpha and Friedman/Dunn and Spearman's correlation tests were performed. Based on descriptive and inferential statistics, a multiple linear regression was used to evaluate the potential predictors of QoL. Results: The COVID-19 pandemic particularly affected the psychological and social domains. Time spent indoors and a non-ideal BMI had a negative impact on QoL. Being female and sexual minority-group membership were associated with lower QoL scores in the psychological and physical domains, respectively. Access to PA eTools was positively associated with QoL. Being monitored by a physical education teacher contributes to satisfactory PA levels during online classes. Conclusion: This study provides novel insights into the access of PA eTools on QoL during the COVID-19 pandemic. During periods of social distancing, people should pay extra attention to self-care strategies to protect mental health and promote positive lifestyle patterns. In addition, using online PA resources monitored by physical education teachers could be a strategy to maintain satisfactory levels of exercise.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132673776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-19DOI: 10.1590/s1980-65742021022221
Leonardo Henrique Silva Fagundes, I. Costa, Cleiton Pereira Reis, G. Pinheiro, V. Costa
Abstract Aim: This study aimed to monitor the behavior of the overtraining and motivations dimensions, as well as to verify whether these dimensions correlate in the preparatory and competitive periods over the season. Methods: Professional soccer players (n = 32) answered the Stress and Recovery Questionnaire for Athletes (RESTQ-Sport 76) and the Sport Motivation Scale (SMS) during the preparatory and competitive periods. Results: Intrinsic amotivation and sport-specific recovery were lower in the competitive period than in the preparatory period. In the preseason, motivation presented a strong and negative correlation with overall recovery (p = 0.001; r = −0.75; r2 = 0.56) and sport-specific recovery (p = 0.001; r = −0.72; r2 = 0.52). The amotivation explained in 56% the variance of the results of the overall recovery and 52% of the sport-specific recovery. During the competitive phase, amotivation showed a strong and positive correlation with overall stress (p = 0.001; r = 0.70; r2 = 0.49) and sport-specific stress (p = 0.001; r = 0.79; r2 = 0.62). The amotivation accounted for 49% of the variance in the results of the overall stress and 62% of sport-specific stress in soccer players. Conclusion: There are associations between overtraining and motivation during the investigated periods. Through longitudinal monitoring in professional soccer, it was verified that the dimensions of amotivation, overall recovery, and sport-specific stress could be related to the prevention symptoms of overtraining in a professional soccer team.
{"title":"Monitoring of overtraining and motivation in elite soccer players","authors":"Leonardo Henrique Silva Fagundes, I. Costa, Cleiton Pereira Reis, G. Pinheiro, V. Costa","doi":"10.1590/s1980-65742021022221","DOIUrl":"https://doi.org/10.1590/s1980-65742021022221","url":null,"abstract":"Abstract Aim: This study aimed to monitor the behavior of the overtraining and motivations dimensions, as well as to verify whether these dimensions correlate in the preparatory and competitive periods over the season. Methods: Professional soccer players (n = 32) answered the Stress and Recovery Questionnaire for Athletes (RESTQ-Sport 76) and the Sport Motivation Scale (SMS) during the preparatory and competitive periods. Results: Intrinsic amotivation and sport-specific recovery were lower in the competitive period than in the preparatory period. In the preseason, motivation presented a strong and negative correlation with overall recovery (p = 0.001; r = −0.75; r2 = 0.56) and sport-specific recovery (p = 0.001; r = −0.72; r2 = 0.52). The amotivation explained in 56% the variance of the results of the overall recovery and 52% of the sport-specific recovery. During the competitive phase, amotivation showed a strong and positive correlation with overall stress (p = 0.001; r = 0.70; r2 = 0.49) and sport-specific stress (p = 0.001; r = 0.79; r2 = 0.62). The amotivation accounted for 49% of the variance in the results of the overall stress and 62% of sport-specific stress in soccer players. Conclusion: There are associations between overtraining and motivation during the investigated periods. Through longitudinal monitoring in professional soccer, it was verified that the dimensions of amotivation, overall recovery, and sport-specific stress could be related to the prevention symptoms of overtraining in a professional soccer team.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127512282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-19DOI: 10.1590/s1980-65742021017220
Leonardo Alex Volpato, D. Z. Fernandes, Renan Camargo Correa, V. M. R. Weber, C. Romanzini, E. R. Ronque, M. Romanzini
Abstract Aims: This study aimed to measure light-intensity physical activity (LPA) patterns in adolescents according to weekdays and school period and investigated associations between LPA patterns and associated factors. Methods: This is a cross-sectional study with 388 students of both genders, selected from public schools from Londrina city, Parana state. LPA was measured using accelerometry for seven consecutive days and was analyzed by the time spent in very short (15 to 30 s), short (30 to 60 s), intermediate (1 to 3 min), and long bouts (≥ 3 min). Results: Approximately 22% of the total daily time was spent in LPA. The time in LPA accumulated in short or intermediate bouts was higher than the time accumulated in very short or long bouts (P < 0.05). Gender was associated with short (β = 2.180; 95% confidence interval [CI], 0.357 to 4.003) and intermediate bouts (β = 2.822; 95% CI, 0.681 to 4.964), girls presented higher daily time. Age was inversely associated with very short (β = −0.925; 95% CI, −1.676 to −0.175) and intermediate bouts (β = −1.985; 95% CI, −3.579 to −0.390). The total time in LPA and time accumulated in very short, short, and intermediate bouts was higher in the school period when compared to the non-school period (P < 0.05). Conclusion: It could be concluded that the LPA patterns are predominantly composed of time spent in bouts between 30 seconds and three minutes. Gender, age, and school period appear to influence the LPA pattern in adolescents.
{"title":"Light-intensity physical activity patterns and associated factors in adolescents","authors":"Leonardo Alex Volpato, D. Z. Fernandes, Renan Camargo Correa, V. M. R. Weber, C. Romanzini, E. R. Ronque, M. Romanzini","doi":"10.1590/s1980-65742021017220","DOIUrl":"https://doi.org/10.1590/s1980-65742021017220","url":null,"abstract":"Abstract Aims: This study aimed to measure light-intensity physical activity (LPA) patterns in adolescents according to weekdays and school period and investigated associations between LPA patterns and associated factors. Methods: This is a cross-sectional study with 388 students of both genders, selected from public schools from Londrina city, Parana state. LPA was measured using accelerometry for seven consecutive days and was analyzed by the time spent in very short (15 to 30 s), short (30 to 60 s), intermediate (1 to 3 min), and long bouts (≥ 3 min). Results: Approximately 22% of the total daily time was spent in LPA. The time in LPA accumulated in short or intermediate bouts was higher than the time accumulated in very short or long bouts (P < 0.05). Gender was associated with short (β = 2.180; 95% confidence interval [CI], 0.357 to 4.003) and intermediate bouts (β = 2.822; 95% CI, 0.681 to 4.964), girls presented higher daily time. Age was inversely associated with very short (β = −0.925; 95% CI, −1.676 to −0.175) and intermediate bouts (β = −1.985; 95% CI, −3.579 to −0.390). The total time in LPA and time accumulated in very short, short, and intermediate bouts was higher in the school period when compared to the non-school period (P < 0.05). Conclusion: It could be concluded that the LPA patterns are predominantly composed of time spent in bouts between 30 seconds and three minutes. Gender, age, and school period appear to influence the LPA pattern in adolescents.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127580202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-25DOI: 10.1590/s1980-657420210017320
J. R. M. G. Godoi Filho, M. Pacheco, Fernando G. Santos, F. Bastos, Cinthia Walter, L. Basso, G. Tani
Abstract Aim: The purpose of the current study was to investigate the effects of considering single/ combined and raw/ standardized measures from the Korperkoordinationstest fur Kinder (KTK) and Fitnessgram tests on the relation between GMC and HRPF in four age-groups. Method: Participated five-hundred thirty-one children and adolescents (279 boys). The individuals were divided into four groups: 4 to 7, 7 to 9.5, 9.5 to 12, 12 to 15 years of age. We utilized the KTK and Fitnessgram tests to measure, respectively, GMC and HRPF. Bootstrap correlations and χ2 tests were performed for all individuals, and each group controlling for sex. Results: For the raw scores, correlations were around (absolute) r = 0.37, except body composition, with large decreases when controlling for age and sex. For standardized tests, considering either the GMC quotient or GMC categories, correlations were all significant (around r = 0.34). Finally, considering broad categories (apt/non-apt and coordinated/non-coordinated), the association was 0.16. Conclusions: We found clear influences of the measure utilized on the association between GMC and HRPF measures.
{"title":"The relation between gross motor coordination and health-related physical fitness through raw and standardized measures from the KTK and Fitnessgram tests","authors":"J. R. M. G. Godoi Filho, M. Pacheco, Fernando G. Santos, F. Bastos, Cinthia Walter, L. Basso, G. Tani","doi":"10.1590/s1980-657420210017320","DOIUrl":"https://doi.org/10.1590/s1980-657420210017320","url":null,"abstract":"Abstract Aim: The purpose of the current study was to investigate the effects of considering single/ combined and raw/ standardized measures from the Korperkoordinationstest fur Kinder (KTK) and Fitnessgram tests on the relation between GMC and HRPF in four age-groups. Method: Participated five-hundred thirty-one children and adolescents (279 boys). The individuals were divided into four groups: 4 to 7, 7 to 9.5, 9.5 to 12, 12 to 15 years of age. We utilized the KTK and Fitnessgram tests to measure, respectively, GMC and HRPF. Bootstrap correlations and χ2 tests were performed for all individuals, and each group controlling for sex. Results: For the raw scores, correlations were around (absolute) r = 0.37, except body composition, with large decreases when controlling for age and sex. For standardized tests, considering either the GMC quotient or GMC categories, correlations were all significant (around r = 0.34). Finally, considering broad categories (apt/non-apt and coordinated/non-coordinated), the association was 0.16. Conclusions: We found clear influences of the measure utilized on the association between GMC and HRPF measures.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133395994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-21DOI: 10.1590/s1980-657420210002421
R. Reis, L. Dacosta, S. Telles
Abstract Aims: This study's general objective is to analyze the sportive usage of the 12 Brazil 2014 FIFA World Cup™ arenas. The specific objectives are: (i) To measure the 12 arenas’ sportive legacy usage; (ii) To examine and analyze the causes and effects of the results that were found; and (iii) To develop a sportive usage index. Methods: To achieve these objectives, the documental research method was employed. Once in possession of the qualitative and quantitative data, parameters were established for the analysis, which was limited by the seasons from 2014 to 2019. We then constructed tables and applied statistical treatment. Results: 2014 Season: 215 matches; 2015 Season: 287 matches; 2016 Season: 248 matches; 2017 Season: 260 matches; 2018 Season: 296 matches; and 2019 Season: 325 matches. These results revealed extremes, with some arenas receiving little use and others being highly used. The sportive usage index was about ≅23 matches/year and 2 matches/month. Conclusions: These results are not random and occurred due to matters pertaining to Brazilian soccer peculiarities, with an emphasis on successive increases in the number of competitions; a large number of matches per year; arenas constructed in locations with low popularity teams that receive little use; and political and management issues that interrupted an arena's use (Maracana in 2016) We recommend that new studies be conducted focusing on the management of these arenas, their state of maintenance and/or conservation, costs, budgets and the use of public resources in their construction.
{"title":"Measuring the legacy of mega-events: sportive usage index of the Brazil 2014 FIFA World Cup™","authors":"R. Reis, L. Dacosta, S. Telles","doi":"10.1590/s1980-657420210002421","DOIUrl":"https://doi.org/10.1590/s1980-657420210002421","url":null,"abstract":"Abstract Aims: This study's general objective is to analyze the sportive usage of the 12 Brazil 2014 FIFA World Cup™ arenas. The specific objectives are: (i) To measure the 12 arenas’ sportive legacy usage; (ii) To examine and analyze the causes and effects of the results that were found; and (iii) To develop a sportive usage index. Methods: To achieve these objectives, the documental research method was employed. Once in possession of the qualitative and quantitative data, parameters were established for the analysis, which was limited by the seasons from 2014 to 2019. We then constructed tables and applied statistical treatment. Results: 2014 Season: 215 matches; 2015 Season: 287 matches; 2016 Season: 248 matches; 2017 Season: 260 matches; 2018 Season: 296 matches; and 2019 Season: 325 matches. These results revealed extremes, with some arenas receiving little use and others being highly used. The sportive usage index was about ≅23 matches/year and 2 matches/month. Conclusions: These results are not random and occurred due to matters pertaining to Brazilian soccer peculiarities, with an emphasis on successive increases in the number of competitions; a large number of matches per year; arenas constructed in locations with low popularity teams that receive little use; and political and management issues that interrupted an arena's use (Maracana in 2016) We recommend that new studies be conducted focusing on the management of these arenas, their state of maintenance and/or conservation, costs, budgets and the use of public resources in their construction.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125504218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-18DOI: 10.1590/s1980-65742021000921
Jefferson Fernando Coelho Rodrigues Júnior, C. A. A. Dias-Filho, Mário Sevilio Oliveira Junior, Carlan da Silva Sena, A. Ferreira, T. Mendes, Herikson Araújo Costa, Nivaldo de Jesus Soares Junior, Raphael Furtado Marques, C. Mostarda, C. Dias
Abstract Aim: This study aimed to explore the effects of a training program during the pre-season on aerobic and anaerobic performance, hemodynamics, autonomic variables, and sleep quality in youth soccer players. Methods: Nineteen athletes, with an average age of 17 ± 1 years, participated in the study. The multicomponent training protocol was divided into technical, tactical, and physical practice for four weeks. The cardiac autonomic modulation was obtained through an electrocardiogram and blood pressure values were measured by a sphygmomanometer. The athletes answered the Pittsburgh questionnaire that assessed sleep patterns and issues. The VO2max was analyzed using the Intermittent Recovery Test Yo-Yo level 1. The RAST test was used to assess anaerobic power. Results: There was improvement in Heart Rate Variability (HRV) indicated by the increase in indexes, mean square root of the differences between normal cycles (RMSSD), low frequency increase (LF) (p = 0.04; d = 0.70), high frequency decrease (HF) (p = 0.01; d = 1.02) and the LF / HF sympathovagal index (p = 0.03; d = 0.70), variables related to faster recovery. An improvement in the components of sleep duration (p = 0.03) and quality (p = 0.02) of baseline and post-intervention sleep was also observed. Conclusion: The four-week multicomponent protocol contributed to improving VO2max, improving fatigue rates, quality of sleep, and maximum power. Additionally, we observe that youth soccer athletes had physiological and hemodynamic adaptations that resulted in an improvement in cardiac autonomic modulation and sleep patterns after four weeks of training.
{"title":"Effects of soccer training during preseason on physical and physiological variables in youth soccer players","authors":"Jefferson Fernando Coelho Rodrigues Júnior, C. A. A. Dias-Filho, Mário Sevilio Oliveira Junior, Carlan da Silva Sena, A. Ferreira, T. Mendes, Herikson Araújo Costa, Nivaldo de Jesus Soares Junior, Raphael Furtado Marques, C. Mostarda, C. Dias","doi":"10.1590/s1980-65742021000921","DOIUrl":"https://doi.org/10.1590/s1980-65742021000921","url":null,"abstract":"Abstract Aim: This study aimed to explore the effects of a training program during the pre-season on aerobic and anaerobic performance, hemodynamics, autonomic variables, and sleep quality in youth soccer players. Methods: Nineteen athletes, with an average age of 17 ± 1 years, participated in the study. The multicomponent training protocol was divided into technical, tactical, and physical practice for four weeks. The cardiac autonomic modulation was obtained through an electrocardiogram and blood pressure values were measured by a sphygmomanometer. The athletes answered the Pittsburgh questionnaire that assessed sleep patterns and issues. The VO2max was analyzed using the Intermittent Recovery Test Yo-Yo level 1. The RAST test was used to assess anaerobic power. Results: There was improvement in Heart Rate Variability (HRV) indicated by the increase in indexes, mean square root of the differences between normal cycles (RMSSD), low frequency increase (LF) (p = 0.04; d = 0.70), high frequency decrease (HF) (p = 0.01; d = 1.02) and the LF / HF sympathovagal index (p = 0.03; d = 0.70), variables related to faster recovery. An improvement in the components of sleep duration (p = 0.03) and quality (p = 0.02) of baseline and post-intervention sleep was also observed. Conclusion: The four-week multicomponent protocol contributed to improving VO2max, improving fatigue rates, quality of sleep, and maximum power. Additionally, we observe that youth soccer athletes had physiological and hemodynamic adaptations that resulted in an improvement in cardiac autonomic modulation and sleep patterns after four weeks of training.","PeriodicalId":153884,"journal":{"name":"Motriz: Revista de Educação Física","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124154510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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