cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.14290358.v1
title: Acute effect of sodium bicarbonate supplementation on the performance during CrossFit® training

description: Abstract Aim: To verify the acute effect of sodium bicarbonate (NaHCO3) supplementation on performance during CrossFit® workout. Methods: Nine experienced males (30.8 ± 3.5 years; 84.4 ± 9.5 kg; 177.5 ± 4.03 cm; 2.2 ± 1.0 years) in CrossFit® participated in this study. They were allocated to two conditions: a) supplementation with 0.3 g.kg-1 of body weight of NaHCO3 and b) supplementation with 0.045 g.kg-1 of body weight of sodium chloride (NaCl). Blood lactate was analyzed at two different moments: before (lac-pre) and after the training protocol (lac-post). The heart rate (HR) and the rating of perceived exertion (RPE) were also collected every two minutes during the execution of the training protocol, and the RPE was also collected after it was finished. At the end of the training protocol, a questionnaire to measure gastrointestinal side effects (GSE) was answered by the participants. Repetitions performed in the training protocol was computed to evaluate the performance during the workout. Results: The results showed that there were no differences found when comparing the conditions for all parameters. HR and RPE were different in the first few minutes (&lt; 4-6 minutes) when compared to the final minutes (&gt; 14 minutes) of the workout. The area under the curve of HR and RPE was significantly lower in the NaHCO3 condition. Conclusion: Acute NaHCO3 supplementation did not improve performance during workout ‘Cindy’ in experienced men. Supplementation also did not alter hemodynamic and perceptual parameters, nor did it cause any GSE. However, responses as a function of time were reduced with NaHCO3 supplementation.
DOI: 10.6084/m9.figshare.14290364.v1
title: Use of wearable inertial sensors for the assessment of spatiotemporal gait variables in children: A systematic review

description: Abstract Aim: The present study aimed to perform a literature review on the use of wearable inertial sensors for gait analysis of children in clinical practice. Methods: Searches were performed in the MEDLINE, EMBASE, Cochrane Library, and PEDro databases for studies involving children or adolescents submitted to gait analysis with the use of wearable inertial sensors. No restrictions were imposed regarding the date of publication or language. Results: Three hundred twenty articles were retrieved, 14 of which met the eligibility criteria and were selected for the present systematic review. Two independent reviewers assessed the risk of bias and study quality using the ROBINS-I and AXIS scale. The studies included in the present review reported multiple outcomes of kinematic gait assessments calculated from the signals provided by the wearable sensors, performed in a hospital setting, outpatient clinic, and a familiar environment, with several types of pediatric conditions. Conclusion: The findings suggest that wearable sensors are effective for the evaluation of quantitative gait variables in children with different pediatric conditions, enabling an objective analysis that should prove useful in the processes of clinical diagnosis and rehabilitation. However, given the relatively small number of studies published on this topic, it is difficult to make strong recommendations regarding the most appropriate equipment, sensor placement, and outcomes for assessing gait in children.
DOI: 10.6084/m9.figshare.14290366.v1
title: Effectiveness of mat Pilates on postural alignment in the sagittal plane in school children: a randomized clinical trial

description: Abstract Aims: This study aimed to investigate the effectiveness of the mat Pilates method, an exercise program, on postural alignment in the sagittal plane among children aged between 8 and 12 years. Method: This study used a blind randomized controlled clinical trial, with a Pilates group (PG) and control group (CG) at the Early Childhood Education Institute. A total of 40 children were randomized, who have no prior knowledge of the Pilates method and no exercise training in the last six months. Mat Pilates exercises were administered twice a week for four months in 50-minute sessions. Postural alignment in the sagittal plane was assessed using photogrammetry. Results: There was no statistically significant difference between the groups post-intervention A significant difference was found in the following outcomes that represent an improvement in intragroup postural alignment: among the children in PG, in the right sagittal view in the vertical body alignment (p=0.019; effect size, ES = 0.70; standardize response mean, SRM = 0.57) and in the sagittal head angle (p=0.035; ES = 0.41; SRM = 0.51). Among the children in the CG, in the vertical alignment of the trunk in the left sagittal view (p= 0.016; ES = 0.50; SRM = 0.44). Conclusion: The effectiveness of Pilates on postural alignment in the sagittal plane among children aged between 8 and 12 years was not confirmed.
DOI: 10.6084/m9.figshare.14290367.v1
title: COVID-19 and Brazilian handball coaches: impacts on training prescription and professional learning

description: Abstract Aims: This study aimed to analyze the influences of social isolation on the professional performance of Brazilian handball coaches and their expectations for the return of training sessions. Methods: Fifty-two handball coaches participated in this study (Mage=37.4 years; SDage=8.4), who coach U-8 to adult teams, and answered an online survey divided into two main sections: a) coaches’ actions with athletes and/or teams throughout social isolation; b) professional learning during social isolation. Descriptive statistics were used for quantitative data analysis and Thematic Analysis for qualitative data analysis. Results: The coaches mentioned that the contact with the teams has been made mostly with WhatsApp (94.2%) and Google Meet or Zoom (75.0%), in which coaches mainly emphasize physical fitness (69.2%) and tactical knowledge (67.3%). For professional learning, coaches are participating in online lectures (96.2%), and virtual meetings (92.3%). Coaches also seek content mainly related to teaching approaches (82.7%), and specific handball exercises (75.0%). Regarding expectations after the social isolation, coaches reported concern about uncertainties for sports practice (restriction of physical contact, decreased incentives for teams, and competitions) and possible psychological benefits (motivation to practice, overcoming difficulties, and learning new resources). Conclusion: The coaches revealed the concern about maintaining the athletes’ performance during the social isolation, the uncertainties for the future of the teams, and the difficulties to use different resources for training. We suggested that the courses for coaches emphasize aspects that enable the learning of new technologies (e.g. social networks, video edition, and research platforms).
DOI: 10.6084/m9.figshare.14290367
title: COVID-19 and Brazilian handball coaches: impacts on training prescription and professional learning

description: Abstract Aims: This study aimed to analyze the influences of social isolation on the professional performance of Brazilian handball coaches and their expectations for the return of training sessions. Methods: Fifty-two handball coaches participated in this study (Mage=37.4 years; SDage=8.4), who coach U-8 to adult teams, and answered an online survey divided into two main sections: a) coaches’ actions with athletes and/or teams throughout social isolation; b) professional learning during social isolation. Descriptive statistics were used for quantitative data analysis and Thematic Analysis for qualitative data analysis. Results: The coaches mentioned that the contact with the teams has been made mostly with WhatsApp (94.2%) and Google Meet or Zoom (75.0%), in which coaches mainly emphasize physical fitness (69.2%) and tactical knowledge (67.3%). For professional learning, coaches are participating in online lectures (96.2%), and virtual meetings (92.3%). Coaches also seek content mainly related to teaching approaches (82.7%), and specific handball exercises (75.0%). Regarding expectations after the social isolation, coaches reported concern about uncertainties for sports practice (restriction of physical contact, decreased incentives for teams, and competitions) and possible psychological benefits (motivation to practice, overcoming difficulties, and learning new resources). Conclusion: The coaches revealed the concern about maintaining the athletes’ performance during the social isolation, the uncertainties for the future of the teams, and the difficulties to use different resources for training. We suggested that the courses for coaches emphasize aspects that enable the learning of new technologies (e.g. social networks, video edition, and research platforms).
DOI: 10.6084/m9.figshare.14290368
title: Is there any difference between “amateur” and “recreational” runners? A latent class analysis

description: Abstract Aims: to identify and describe the clustering of characteristics related to running amongst Brazilian runners using latent class analysis and to verify if there is a profile associated with better performance. Material and Methods: a sample of 1149 Brazilian runners answered an online questionnaire, that provided information about biological (sex, age, height, weight), training (running pace, frequency and volume/week, motivation), and socioeconomic factors, as well as a multidimensional questionnaire of fear of failure. Latent Class Analysis was used to identify subgroups of Brazilian runners, based on BMI, training volume and frequency/week, motivation, socioeconomic factors, and the fear of failure. Further, a χ2 test was computed to verify statistical differences in the frequency of the descriptive variables between classes. Finally, binary logistic regression analysis estimated factors associated with running performance, with running pace as the dependent variable. Results: It was possible to identify two different classes among Brazilian runners, which were called “amateur runners” and “recreational runners”. Variables that highlighted classes’ differences were: volume and frequency training/week, motivation for the practice, and BMI. Regarding the running performance, logistic regression analysis showed that men (OR=5.39; 95%CI=4.00-7.25), young runners (OR=0.38; 95%CI=0.28-0.51), and “amateur runners” (OR=4.19; 95%CI=2.95-5.94) were more prone to have higher performance. Conclusion: Two distinct classes were found among Brazilian runners that were linked to their performance, highlighting that even among non-professional runners, differences can be observed regarding their classification. Hence, future studies should consider using these classes to properly stratify or identify non-professional runners.
DOI: 10.6084/m9.figshare.14290372
title: The relationship between relative age effects and sex, age categories and playing positions in Brazilian National Handball Teams

description: Abstract Aims: This study investigated the existence of Relative Age Effect (RAE) in the selection process of male and female athletes in the Brazilian national handball teams according to age categories (U-18, U-21, and senior) and playing position (wings, backs, pivots, and goalkeepers). Methods: In order to determine RAE, athletes were divided based on their months of birth; quarters Q1 (January-March), Q2 (April-June), Q3 (July-September), and Q4 (October-December). Data were collected from the official Brazilian Handball Confederation (CBHb) website and included the athletes that participated in training and/or competitions composing the Brazilian national teams from 2014 to 2018. To determine the RAE on playing positions, age categories of male and female groups were pooled. Chi-squared tests were performed to investigate the RAE. Results: An over-representation of players born in Q1 and Q2 in the U-18, U-20, and senior categories of male teams and the U-20, and senior female teams were found. In the male teams, as the age category increased, RAE decreased, but still existed. Such distribution was reversed in the female athletes, with a higher RAE magnitude in the senior category as compared to U-18 and U-21. Additionally, it seems that RAE is dependent on the playing position only for male athletes (wings and backs) whereas RAE was found for all playing positions in female athletes. Conclusion: Overall, RAE was found in Brazilian national handball teams, but its magnitude and form of manifestation seem to be influenced by sex, category, and playing position.
DOI: 10.6084/m9.figshare.14290372.v1
title: The relationship between relative age effects and sex, age categories and playing positions in Brazilian National Handball Teams

description: Abstract Aims: This study investigated the existence of Relative Age Effect (RAE) in the selection process of male and female athletes in the Brazilian national handball teams according to age categories (U-18, U-21, and senior) and playing position (wings, backs, pivots, and goalkeepers). Methods: In order to determine RAE, athletes were divided based on their months of birth; quarters Q1 (January-March), Q2 (April-June), Q3 (July-September), and Q4 (October-December). Data were collected from the official Brazilian Handball Confederation (CBHb) website and included the athletes that participated in training and/or competitions composing the Brazilian national teams from 2014 to 2018. To determine the RAE on playing positions, age categories of male and female groups were pooled. Chi-squared tests were performed to investigate the RAE. Results: An over-representation of players born in Q1 and Q2 in the U-18, U-20, and senior categories of male teams and the U-20, and senior female teams were found. In the male teams, as the age category increased, RAE decreased, but still existed. Such distribution was reversed in the female athletes, with a higher RAE magnitude in the senior category as compared to U-18 and U-21. Additionally, it seems that RAE is dependent on the playing position only for male athletes (wings and backs) whereas RAE was found for all playing positions in female athletes. Conclusion: Overall, RAE was found in Brazilian national handball teams, but its magnitude and form of manifestation seem to be influenced by sex, category, and playing position.
DOI: 10.6084/m9.figshare.14290373
title: Reasons for women’s approach and permanence in Zumba

description: Abstract Aim: This study aims to comprehend the reasons for women’s approach and permanence in Zumba. Method: In this descriptive study, we interviewed 20 female interviewees 31-66 years-old (M=46.14; SD=10,07). Inclusion criteria were: have been training Zumba for at least one year and with a minimum frequency of once a week. We excluded women who practice other activities simultaneously to Zumba. For data collection, we applied a semi-structured interview covering the following aspects: how they approached Zumba and the reasons why they kept training it. Data analysis was performed using non-aprioristic categories. Results: The interviewees reported approaching Zumba by friends, family, personal initiative, media, and medical advice. The permanence in the modality was related to therapeutic aspects, pleasure, sociability, being good for health, and engagement in a body practice. Conclusion: We concluded that women approach and keep training Zumba for reasons that surpass the physical benefits provided by body practices; rather, it is deemed as a useful and social practice.
DOI: 10.6084/m9.figshare.14290373.v1
title: Reasons for women’s approach and permanence in Zumba

description: Abstract Aim: This study aims to comprehend the reasons for women’s approach and permanence in Zumba. Method: In this descriptive study, we interviewed 20 female interviewees 31-66 years-old (M=46.14; SD=10,07). Inclusion criteria were: have been training Zumba for at least one year and with a minimum frequency of once a week. We excluded women who practice other activities simultaneously to Zumba. For data collection, we applied a semi-structured interview covering the following aspects: how they approached Zumba and the reasons why they kept training it. Data analysis was performed using non-aprioristic categories. Results: The interviewees reported approaching Zumba by friends, family, personal initiative, media, and medical advice. The permanence in the modality was related to therapeutic aspects, pleasure, sociability, being good for health, and engagement in a body practice. Conclusion: We concluded that women approach and keep training Zumba for reasons that surpass the physical benefits provided by body practices; rather, it is deemed as a useful and social practice.
DOI: 10.6084/m9.figshare.14290370
title: Intra and inter-rater agreement of the Dynamic Movement Assessment ™ Agreement of the DMA™

description: Abstract Aims: To investigate the inter-and intra-rater agreement of the Dynamic Movement Assessment (DMA™) risk classification. Method: In this study, after the anthropometric measurements were made, 17 female soccer athletes were filmed performing the six DMA™ tests (full squat, step-up, single-leg squat, jump test, test plank, and side plank). Both, major and secondary deviations, were observed during the tests. Two experienced health professionals performed video analysis using Kinovea 8.15.0 (inter-rater agreement). To assess the intra-rater agreement, the same video analysis was performed two months later. Participants were rated from 0 to 21 points and at low, medium, moderate, and high risk of developing musculoskeletal injuries. To assess the reliability of the assessment of movement patterns of DMA, the intraclass correlation coefficient (ICC) was performed with a 2-way random-effects model with an absolute agreement (inter-rater) and a 2-way mixed-effects model and consistency (intra-rater). Weighted Kappa Agreement Analysis (kw) was performed with linear weights to assess the level of agreement related to the risk classification of DMA (high, moderate, medium, or minimum). The Analysis was performed with StatsDirect v.3 and SPSS (23.0). Results: Comparing the number of points between the inter-and intra-rater, the ICC was 0.91 (95% CI = 0.74-0.97) and 0.84 (95% CI = 0.59-0.94), respectively, with kw = 0.46 (P = 0.02) intra -rater and kw = 0.46 (P = 0.006) inter-rater (Table 9). Conclusion: DMA has excellent inter-and intra-rater reliability to evaluate movement patterns and classify the risk of musculoskeletal injuries.
DOI: 10.6084/m9.figshare.14290375
title: Moderate-intensity exercise training improves long-term memory in fructose-fed rats

description: Abstract Aim: Animal disease model studies are widely used to show the effectiveness of physical exercise to improve cognitive function. Thus far, few studies are investigating the effects of exercise training on memory performance in fructose feed animals. Method: The present study investigated the effects of physical exercise protocol carried out with three weekly sessions, on the short and long-term memory performance of animals fed with fructose. Male Wistar rats were divided into sedentary (SD); sedentary+fructose (SDF); trained (TR); trained+fructose (TRF). Treadmill running sessions consisted of a five-minute warm-up at 20% maximum speed (MS) followed by 40 minutes at 40% MS and a 5-minute cool-down at 20% MS. Sessions were carried out three days a week (Monday, Wednesday, and Friday) for six weeks. Object Recognition Test was used to evaluate short and long-term memory. Results: The access to fructose altered food intake and drinking volume, as fructose-fed animals had lower food intake (SDF: -27% and TRF: -24%) and higher drinking volume (SDF: +49% and TRF: +45%) than an animal which drank water. Trained groups had lower epididymal fat pad compared to their sedentary counterparts (TR: -30% and TRF: -11%). In addition, TR and TRF had an improvement in glucose tolerance. Regarding memory performance, neither fructose intake nor exercise training influenced short-term memory. On the other hand, long-term memory was enhanced by exercise training. An improvement of about 39% was observed for TR and the largest effect was seen for TRF, which improved long-term memory in 76%. Conclusion: In conclusion, moderate-intensity exercise training, carried out three days a week, for six weeks was effective to improve long-term memory in fructose-fed rats. This result was related neither to the visceral fat amount nor to the glucose metabolism. Further studies should considerer the investigation regarding cerebral areas, associated with memory that might be adapted facing physical exercise.
DOI: 10.6084/m9.figshare.14290375.v1
title: Moderate-intensity exercise training improves long-term memory in fructose-fed rats

description: Abstract Aim: Animal disease model studies are widely used to show the effectiveness of physical exercise to improve cognitive function. Thus far, few studies are investigating the effects of exercise training on memory performance in fructose feed animals. Method: The present study investigated the effects of physical exercise protocol carried out with three weekly sessions, on the short and long-term memory performance of animals fed with fructose. Male Wistar rats were divided into sedentary (SD); sedentary+fructose (SDF); trained (TR); trained+fructose (TRF). Treadmill running sessions consisted of a five-minute warm-up at 20% maximum speed (MS) followed by 40 minutes at 40% MS and a 5-minute cool-down at 20% MS. Sessions were carried out three days a week (Monday, Wednesday, and Friday) for six weeks. Object Recognition Test was used to evaluate short and long-term memory. Results: The access to fructose altered food intake and drinking volume, as fructose-fed animals had lower food intake (SDF: -27% and TRF: -24%) and higher drinking volume (SDF: +49% and TRF: +45%) than an animal which drank water. Trained groups had lower epididymal fat pad compared to their sedentary counterparts (TR: -30% and TRF: -11%). In addition, TR and TRF had an improvement in glucose tolerance. Regarding memory performance, neither fructose intake nor exercise training influenced short-term memory. On the other hand, long-term memory was enhanced by exercise training. An improvement of about 39% was observed for TR and the largest effect was seen for TRF, which improved long-term memory in 76%. Conclusion: In conclusion, moderate-intensity exercise training, carried out three days a week, for six weeks was effective to improve long-term memory in fructose-fed rats. This result was related neither to the visceral fat amount nor to the glucose metabolism. Further studies should considerer the investigation regarding cerebral areas, associated with memory that might be adapted facing physical exercise.