cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.14290249
title: Obstacles for physical education teachers in public schools: an unsustainable situation

description: Abstract The study aimed to identify difficulties and aspirations of physical education teachers at public schools in Niterói, inspired by UNESCO's quality physical education goal. An action research containing quantitative and qualitative data was conducted. Thirty-five physical education teachers completed a questionnaire and seven teachers were interviewed. The results indicated that the major difficulties faced were low wages, precarious infrastructure and lack of materials. Physical education is devalued, the space allocated is inadequate, and it is treated as mere recreation. Teachers criticized the lack of commitment of some colleagues who work without planning. They also complained about undisciplined students and lack of interest from their families. They aspire to self-improvement, infrastructure improvements, and more support from school and families. Teachers who do not educate and lack of support from school and government are an unsustainable reality. A synergy of efforts should be implemented, based on a systems view.
DOI: 10.6084/m9.figshare.5634958.v1
title: Analysis of recall bias of information on soccer injuries in adolescents

description: Abstract Aims: to analyze the recall bias of injury characteristics, anthropometric variables, and training variables in a morbidity survey in adolescent soccer players for a period of four months. Method: cohort study with 198 adolescent male soccer players, divided into two parts: a prospective study over four months, followed by a retrospective study. A morbidity survey containing personal and training data, in addition to information on injuries and their characteristics (anatomical site, mechanism, nature, moment, severity, return to activities and recurrence) was administered weekly for four months, after which the questionnaire was applied again questioning the same information retrospectively for the four-month prospective study period. The data were collected through interviews addressing the occurrence of injuries and respective characteristics. Results: there were weak correlations and concordances for the recall of the occurrence of injury and all related variables. However, regarding the information relating to personal and training data, moderate correlations were observed for the variables height, time of training, weekly hours, absences, and position, as well as excellent correlations for body mass. Conclusions: we observed recall bias in all information about the characteristics of the injuries reported by adolescent soccer players.
DOI: 10.6084/m9.figshare.5634937
title: Evolution of postural alignment in preschool and school phases: A longitudinal study

description: Abstract Aim: To identify postural variations in the positioning of the head, cervical spine and shoulders of children in two phases - preschool and school. Methods: This was a longitudinal study, a convenience sample with 99 children of both genders, in preschool (5-6 years old) and school (8-11 years old) phases. The postural alignment of the head, cervical spine and shoulders was evaluated through computerized photogrammetry and analyzed by SAPo software. Results: Differences were found between preschool and school phases, but only the variables of shoulder angle (SA) and forward head distance (FHD) were significantly different (SA = 32.79 [30.49 - 35.09] and 35.84 [33.53 - 38.15] p = 0.026, respectively; FHD = 8.40 [8.07 - 8.73] and 11.23 [10.94-11.52] p &lt;0.001, respectively). A positive correlation was obtained between forward head distance and body mass (rho= 0.597, p &lt;0.001). Conclusion: There are changes in head and shoulder alignment between preschool and school phases, with protrusion of shoulders and forward head distance findings in children who have evolved their posture. Therefore, parents should be aware of children’s posture, and health and education professionals should be involved in screening and prevention programs.
DOI: 10.6084/m9.figshare.5634958
title: Analysis of recall bias of information on soccer injuries in adolescents

description: Abstract Aims: to analyze the recall bias of injury characteristics, anthropometric variables, and training variables in a morbidity survey in adolescent soccer players for a period of four months. Method: cohort study with 198 adolescent male soccer players, divided into two parts: a prospective study over four months, followed by a retrospective study. A morbidity survey containing personal and training data, in addition to information on injuries and their characteristics (anatomical site, mechanism, nature, moment, severity, return to activities and recurrence) was administered weekly for four months, after which the questionnaire was applied again questioning the same information retrospectively for the four-month prospective study period. The data were collected through interviews addressing the occurrence of injuries and respective characteristics. Results: there were weak correlations and concordances for the recall of the occurrence of injury and all related variables. However, regarding the information relating to personal and training data, moderate correlations were observed for the variables height, time of training, weekly hours, absences, and position, as well as excellent correlations for body mass. Conclusions: we observed recall bias in all information about the characteristics of the injuries reported by adolescent soccer players.
DOI: 10.6084/m9.figshare.14290250.v1
title: Fear of Failure in Sport: A Portuguese Cross-cultural Adaptation

description: Abstract The Performance Failure Appraisal Inventory (PFAI) is a multidimensional measure of threat appraisals associated with one's fear of failure. Whilst emerging research has supported the validity and reliability of the PFAI with North American and British sport participants, its psychometric proprieties remain untested within Portuguese samples. This study examined the psychometric proprieties of the PFAI with a sample of 556 Portuguese athletes. A confirmatory factor analysis was employed to test whether the proposed multi-factorial structure of the PFAI fits well the Portuguese data.All factors displayed good internal consistency, convergent validity, and discriminant validity. Multi-group analysis revealed cross-validity and the models' invariance. The correlations between fear of failure and sport anxiety measures revealed evidence of its concurrent validity. The PFAIappears to be a psychometrically sound measure anda valid and reliable tool for assessing fear of failure in Portuguese sport contexts.
DOI: 10.6084/m9.figshare.5634937.v1
title: Evolution of postural alignment in preschool and school phases: A longitudinal study

description: Abstract Aim: To identify postural variations in the positioning of the head, cervical spine and shoulders of children in two phases - preschool and school. Methods: This was a longitudinal study, a convenience sample with 99 children of both genders, in preschool (5-6 years old) and school (8-11 years old) phases. The postural alignment of the head, cervical spine and shoulders was evaluated through computerized photogrammetry and analyzed by SAPo software. Results: Differences were found between preschool and school phases, but only the variables of shoulder angle (SA) and forward head distance (FHD) were significantly different (SA = 32.79 [30.49 - 35.09] and 35.84 [33.53 - 38.15] p = 0.026, respectively; FHD = 8.40 [8.07 - 8.73] and 11.23 [10.94-11.52] p &lt;0.001, respectively). A positive correlation was obtained between forward head distance and body mass (rho= 0.597, p &lt;0.001). Conclusion: There are changes in head and shoulder alignment between preschool and school phases, with protrusion of shoulders and forward head distance findings in children who have evolved their posture. Therefore, parents should be aware of children’s posture, and health and education professionals should be involved in screening and prevention programs.
DOI: 10.6084/m9.figshare.5634982
title: Effect of judo practice on the body composition of children and adolescents: A 9 month intervention

description: Abstract Aims: To analyze the effects of 9 months of judo training on the body composition of children and adolescents. Methods: 105 children and adolescents aged between 5 and 15 years were divided into two groups: control (n=40) and Judo (n=65), all participants of one Philanthropic institution. Anthropometric measurements, total body composition, and body composition per region were performed using DEXA. The judo intervention lasted 9 months, held twice a week for one hour. The control group did not perform any type of training. Repeated measures ANOVA with adjustments for age, sex, and maturation, and the effect size by Eta Squared were performed. SPSS software version 13.0 was used and the statistical significance adopted was p-value&lt;5%. Results: After the intervention, statistical significance was observed in body fat (kg) (p-value=0.031). There was an increase in BF in both groups; however this increase was much higher in the control group. Conclusion: The practice of 9 months of judo was effective for the maintenance of body fat in children and adolescents.
DOI: 10.6084/m9.figshare.5668297
title: Relationship between physical fitness and game-related statistics in elite professional basketball players: Regular season vs. playoffs

description: Abstract AIMS This study aimed to verify th erelation ship between of anthropometric and physical performance variables with game-related statistics in professional elite basketball players during a competition. METHODS Eleven male basketball players were evaluated during 10 weeks in two distinct moments (regular season and playoffs). Overall, 11 variables of physical fitness and 13 variables of game-related statistics were analysed. RESULTS The following significant Pearson’scorrelations were found in regular season: percentage of fat mass with assists (r = -0.62) and steals (r = -0.63); height (r = 0.68), lean mass (r = 0.64), and maximum strength (r = 0.67) with blocks; squat jump with steals (r = 0.63); and time in the T-test with success ful two-point field-goals (r = -0.65), success ful free-throws (r = -0.61), and steals (r = -0.62). However, in playoffs, only stature and lean mass maintained these correlations (p ≤ 0.05). CONCLUSIONS The anthropometric and physical characteristics of the players showed few correlations with the game-related statistics in regular season, and these correlations are even lower in the playoff games of a professional elite Champion ship, wherefore, not being good predictors of technical performance.
DOI: 10.6084/m9.figshare.14290249.v1
title: Obstacles for physical education teachers in public schools: an unsustainable situation

description: Abstract The study aimed to identify difficulties and aspirations of physical education teachers at public schools in Niterói, inspired by UNESCO's quality physical education goal. An action research containing quantitative and qualitative data was conducted. Thirty-five physical education teachers completed a questionnaire and seven teachers were interviewed. The results indicated that the major difficulties faced were low wages, precarious infrastructure and lack of materials. Physical education is devalued, the space allocated is inadequate, and it is treated as mere recreation. Teachers criticized the lack of commitment of some colleagues who work without planning. They also complained about undisciplined students and lack of interest from their families. They aspire to self-improvement, infrastructure improvements, and more support from school and families. Teachers who do not educate and lack of support from school and government are an unsustainable reality. A synergy of efforts should be implemented, based on a systems view.
DOI: 10.6084/m9.figshare.5634982.v1
title: Effect of judo practice on the body composition of children and adolescents: A 9 month intervention

description: Abstract Aims: To analyze the effects of 9 months of judo training on the body composition of children and adolescents. Methods: 105 children and adolescents aged between 5 and 15 years were divided into two groups: control (n=40) and Judo (n=65), all participants of one Philanthropic institution. Anthropometric measurements, total body composition, and body composition per region were performed using DEXA. The judo intervention lasted 9 months, held twice a week for one hour. The control group did not perform any type of training. Repeated measures ANOVA with adjustments for age, sex, and maturation, and the effect size by Eta Squared were performed. SPSS software version 13.0 was used and the statistical significance adopted was p-value&lt;5%. Results: After the intervention, statistical significance was observed in body fat (kg) (p-value=0.031). There was an increase in BF in both groups; however this increase was much higher in the control group. Conclusion: The practice of 9 months of judo was effective for the maintenance of body fat in children and adolescents.
DOI: 10.6084/m9.figshare.14290250
title: Fear of Failure in Sport: A Portuguese Cross-cultural Adaptation

description: Abstract The Performance Failure Appraisal Inventory (PFAI) is a multidimensional measure of threat appraisals associated with one's fear of failure. Whilst emerging research has supported the validity and reliability of the PFAI with North American and British sport participants, its psychometric proprieties remain untested within Portuguese samples. This study examined the psychometric proprieties of the PFAI with a sample of 556 Portuguese athletes. A confirmatory factor analysis was employed to test whether the proposed multi-factorial structure of the PFAI fits well the Portuguese data.All factors displayed good internal consistency, convergent validity, and discriminant validity. Multi-group analysis revealed cross-validity and the models' invariance. The correlations between fear of failure and sport anxiety measures revealed evidence of its concurrent validity. The PFAIappears to be a psychometrically sound measure anda valid and reliable tool for assessing fear of failure in Portuguese sport contexts.
DOI: 10.6084/m9.figshare.5668285
title: Intensity-dependent effects of cycling exercise on corticospinal excitability in healthy humans: a pilot study

description: Abstract Aims the aim of this study was to verify the effects of different intensities of locomotor exercise on corticospinal excitability. Methods 18 healthy subjects (27.6 ± 6.5 years,) participated in a design study of three different exercise protocols on a cycle ergometer: (i) 10 min at 75% Wmax (high intensity); (ii) 15min at 60% Wmax (moderate intensity) or (iii) 30 min at 45% Wmax (low intensity). The protocols of lower body cycling were assigned in random order in separate sessions. A control session was done with subjects at rest. Corticospinal excitability was assessed before (baseline) and every 5 min for 15min after the end of exercise/rest (time: 0, 5, 10 and 15) by measurement of the motor evoked potential (MEP) elicited by transcranial magnetic stimulation in the relaxed first-dorsal interosseus muscle. Results Compared to the resting session, a significant decrease (64%) in the motor evoked potential amplitudes was found only in the session of exercise of high intensity. This result seems depend on the level of physical activity of subject. No change was found after rest, low and moderate exercises. Conclusions These findings suggest that changes in the corticospinal excitability depend on exercise intensity and level of physical activity of subjects.
DOI: 10.6084/m9.figshare.5668297.v1
title: Relationship between physical fitness and game-related statistics in elite professional basketball players: Regular season vs. playoffs

description: Abstract AIMS This study aimed to verify th erelation ship between of anthropometric and physical performance variables with game-related statistics in professional elite basketball players during a competition. METHODS Eleven male basketball players were evaluated during 10 weeks in two distinct moments (regular season and playoffs). Overall, 11 variables of physical fitness and 13 variables of game-related statistics were analysed. RESULTS The following significant Pearson’scorrelations were found in regular season: percentage of fat mass with assists (r = -0.62) and steals (r = -0.63); height (r = 0.68), lean mass (r = 0.64), and maximum strength (r = 0.67) with blocks; squat jump with steals (r = 0.63); and time in the T-test with success ful two-point field-goals (r = -0.65), success ful free-throws (r = -0.61), and steals (r = -0.62). However, in playoffs, only stature and lean mass maintained these correlations (p ≤ 0.05). CONCLUSIONS The anthropometric and physical characteristics of the players showed few correlations with the game-related statistics in regular season, and these correlations are even lower in the playoff games of a professional elite Champion ship, wherefore, not being good predictors of technical performance.
DOI: 10.6084/m9.figshare.5634946
title: Can participation in sports during childhood influence physical activity in adulthood?

description: Abstract Aims: The promotion of sports participation during the early years of life is important not only because it promotes health during childhood and adolescence, but also because it has benefits in adulthood. This study was developed to identify the association between sports participation during the early years of life and adulthood, to analyze the non-participation in sports throughout life and to identify the correlates of non-participation in sports. DESIGN: Cross-sectional study. Methods: The sample was composed of 743 adults randomly selected in a medium-size Brazilian city. Non-participation in sports during childhood and adolescence was assessed through specific questions, and non-participation in sports in adulthood was assessed using the second section of Baecke questionnaire. Answering “no” in the three periods assessed (childhood, adolescence and adulthood) was characterized as non-participation in sports throughout life. Chronological age, sex, formal education, BMI, current job and ethnicity were considered covariates. Categorical data were expressed as rates and compared using chi-square test and binary logistic regression. Results: The prevalence of adults not engaged in sports throughout life was 58.5% (95% CI= 55.1 - 62.1). Females (OR = 2.41 [1.71 - 3.38]), those more advanced in age (OR = 3.29 [1.82-5.94]) and/or possessing a lower level of education (OR = 4.47 [2.45 - 8.17]) were associated with the non-engagement in sports. Conclusion: Non-participation in sports during childhood can influence non-participation in sports during adulthood, which is significantly affected by sex, age and education level.
DOI: 10.6084/m9.figshare.5634946.v1
title: Can participation in sports during childhood influence physical activity in adulthood?

description: Abstract Aims: The promotion of sports participation during the early years of life is important not only because it promotes health during childhood and adolescence, but also because it has benefits in adulthood. This study was developed to identify the association between sports participation during the early years of life and adulthood, to analyze the non-participation in sports throughout life and to identify the correlates of non-participation in sports. DESIGN: Cross-sectional study. Methods: The sample was composed of 743 adults randomly selected in a medium-size Brazilian city. Non-participation in sports during childhood and adolescence was assessed through specific questions, and non-participation in sports in adulthood was assessed using the second section of Baecke questionnaire. Answering “no” in the three periods assessed (childhood, adolescence and adulthood) was characterized as non-participation in sports throughout life. Chronological age, sex, formal education, BMI, current job and ethnicity were considered covariates. Categorical data were expressed as rates and compared using chi-square test and binary logistic regression. Results: The prevalence of adults not engaged in sports throughout life was 58.5% (95% CI= 55.1 - 62.1). Females (OR = 2.41 [1.71 - 3.38]), those more advanced in age (OR = 3.29 [1.82-5.94]) and/or possessing a lower level of education (OR = 4.47 [2.45 - 8.17]) were associated with the non-engagement in sports. Conclusion: Non-participation in sports during childhood can influence non-participation in sports during adulthood, which is significantly affected by sex, age and education level.
DOI: 10.6084/m9.figshare.5668675
title: A cross-cultural study of physical activity and sedentariness in youth from Mozambique and Portugal

description: Abstract Aim: The purpose of this study was to analyse the effects of age, sex, body mass index (BMI) and country of origin (Mozambique versus Portugal) on physical activity and sedentariness. Methods: Sample size was comprised of 593 adolescents from Mozambique (n=258) and Portugal (n=335), aged 10-15 years old. Height and weight were measured, and BMI was computed; furthermore, subjects were classified in two groups (normal weight and overweight/obese). The mean time (min/day) spent in moderate-to-vigorous physical activity (MVPA), light physical activity (LPA), and sedentary activity were assessed using the GT3X Actigraph accelerometer over at least 4 days (1 weekend day) with a minimum of 10 hours/day of monitoring. Multiple regression analysis was done in SPSS 20. Results: A low percentage of Mozambican (3.9%) and Portuguese (4.3%) youth complied with the MVPA recommendations (60min·day-1). However, Portuguese boys spend more time in MVPA. Girls and those with higher BMI spend more time in sedentary activities and less time in MVPA and LPA; older adolescents spend more time in sedentary activities and less time in LPA. There is a significant effect of the country of origin on MVPA, favouring Portuguese youth. Conclusions: Results suggest country differences in MVPA between Mozambican and Portuguese youth - the Mozambicans are less involved in MVPA than the Portuguese, probably reinforcing the undesirable effect of the urbanization process in developing nations.
DOI: 10.6084/m9.figshare.5862132
title: Effects of the platelet-rich fibrin associated with physical exercise in a model of median nerve compression.

description: Abstract AIMS Platelet-Rich Fibrin (PRF) is a new and promising technique for tissue repair, however, there is still a gap about its action on peripheral nerve injury, as well as its association with physical exercise. Thus, the aim of this study was to evaluate the effects of the PRF associated with physical exercise in a model of median nerve compression. METHODS 42 rats, divided into: Control, non-injured limb, and other six groups with nerve lesion (Control lesion; Treated with PRF; Treadmill walking; Free swimming; PRF and treadmill; PRF and swimming). The lesion model was performed with median nerve compression. To obtain the PRF, 1.5 mL of blood was centrifuged and the fibrin clot positioned directly over the compression region. The exercise protocols were performed during 2 weeks. The evaluations performed were grip strength tests and histologic analysis. RESULTS both, grip strength and histomorphometric evaluations (fiber numbers and axon density) did not present significant differences between the treated and lesion groups, however, in the morphological evaluation it was possible to distinguish characteristics of the repair process for the treated groups. CONCLUSION a slight qualitative improvement was observed for the treated groups, especially when it was associated PRF with free swimming.