ESE - Artigos em Revistas Indexados à WoS/Scopus
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Browsing ESE - Artigos em Revistas Indexados à WoS/Scopus by Sustainable Development Goals (SDG) "04:Educação de Qualidade"
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- Acute Effects of Nitrate-Rich Beetroot Juice on Cardiovascular and Hemodynamic Responses to Flywheel Resistance Exercise: A Randomized, Double-Blind, Placebo-Controlled Crossover TrialPublication . Primo, Mateus Chaves; Viana, Ítalo Santiago Alves; Goulart-Silva, Leonardo Silveira; Machado, Wanderson Matheus Lopes; Leite , Luciano Bernardes; Forte, Pedro; Calhelha, Ricardo C.; Monteiro, António M.; Branquinho, Luís; Silva, Sandro Fernandes; Oliveira, Claudia Eliza Patrocínio de; Moreira, Osvaldo CostaBeetroot juice is a popular nutritional resource in sports due to its ergogenic effects, promoting vasodilation, hypotension, improved energy efficiency, and reduced oxygen cost. However, its role in modulating the autonomic nervous system during strength training remains understudied. This study assessed the effects of acute nitrate-rich beetroot juice supplementation on cardiovascular and hemodynamic responses to flywheel resistance exercise. Fifteen male participants (age 22 +/- 3.64 years) from the Federal University of Vi & ccedil;osa completed a crossover, double-blind, placebo-controlled trial. Each participant consumed either 400 mg of standardized nitrate or a placebo before performing 4 sets of 8-12 repetitions at 100% of their maximum concentric strength using a leg extension exercise, with 90 s recovery intervals. Heart rate, blood pressure, oxygen saturation, and subjective perception of effort were measured after each set. Data were analyzed using SPSS 23, employing the Shapiro-Wilk normality test, t-test for related samples, and MANOVA with time and supplement factors. NO3- supplementation led to a smaller increase in systolic blood pressure (SBP) during exercise compared to the placebo and reduced diastolic blood pressure (DBP) in the last set, reflecting decreased peripheral vascular resistance. However, no significant effects were observed for heart rate, rate-pressure product, oxygen saturation, time under tension, or subjective perception of effort. These findings suggest that NO3- supplementation can offer cardiovascular benefits by attenuating blood pressure increases during strength training, highlighting its potential as a low-risk ergogenic aid for healthy young men.
- Agreement Between a Wristwatch and a Free Optical Sensor with a Chest Strap in Measuring HR Variations During Front Crawl SwimmingPublication . Bartolomeu, Raúl Filipe; Silva, Vasco; Pereira, Ana; Morais, Gonçalo; Sokołowski, Kamil; Strzała, Marek; Morais, Jorge; Teixeira, José EduardoWearables with optical sensors for heart rate (HR) measurement are widely available in the market. However, their accuracy in water is still underexplored. The aim of the present study was to test the agreement of two different devices for HR monitoring with a chest strap while swimming at different intensities. Twenty male and ten female subjects (mean 19.6 ± 0.7 years old, 173.3 ± 5.4 cm, and 67.1 ± 6.6 kg) performed an intermittent progressive protocol of 3 × 30 s tethered front crawl swimming followed by a 1 min rest period. A chest strap, a wristwatch, and a multi-site optical sensor placed at the temple were used simultaneously. A strong association, an excellent intra-class correlation, and a low mean bias were denoted (R2 = 0.85, ICC = 0.94, b = −1) between HRchest vs. HRtemple. Both indicators increased throughout the test, denoting an increase in accuracy from light to vigorous exercise intensity. HRchest and HRwatch showed a moderate association for the whole test (R2 = 0.23) but a weak association, a poor consistency, and a high mean bias stepwise (0.01 ≤ R2 ≤ 0.06, 0.03 ≤ ICC ≤ 0.42, −48.1 ≤ b≤ −16.1). During swimming, the HR values from the temple showed a better agreement with the chest strap than those from the wristwatch. The temple reading accuracy might be enhanced by using the device during the dryland warm-up routine
- Agreement Between a Wristwatch and a Free Optical Sensor with a Chest Strap in Measuring HR Variations During Front Crawl SwimmingPublication . Bartolomeu, Raúl Filipe; Silva, Vasco; Pereira, Ana; Morais, Gonçalo; Sokołowski, Kamil; Strzała, Marek; Morais, Jorge; Teixeira, José EduardoWearables with optical sensors for heart rate (HR) measurement are widely available in the market. However, their accuracy in water is still underexplored. The aim of the present study was to test the agreement of two different devices for HR monitoring with a chest strap while swimming at different intensities. Twenty male and ten female subjects (mean 19.6 ± 0.7 years old, 173.3 ± 5.4 cm, and 67.1 ± 6.6 kg) performed an intermittent progressive protocol of 3 × 30 s tethered front crawl swimming followed by a 1 min rest period. A chest strap, a wristwatch, and a multi-site optical sensor placed at the temple were used simultaneously. A strong association, an excellent intra-class correlation, and a low mean bias were denoted (R2 = 0.85, ICC = 0.94, b = −1) between HRchest vs. HRtemple. Both indicators increased throughout the test, denoting an increase in accuracy from light to vigorous exercise intensity. HRchest and HRwatch showed a moderate association for the whole test (R2 = 0.23) but a weak association, a poor consistency, and a high mean bias stepwise (0.01 ≤ R2 ≤ 0.06, 0.03 ≤ ICC ≤ 0.42, −48.1 ≤ b≤ −16.1). During swimming, the HR values from the temple showed a better agreement with the chest strap than those from the wristwatch. The temple reading accuracy might be enhanced by using the device during the dryland warm-up routine.
- Associations Between Pain Intensity and Inflammatory Profile in Women with Android and Gynoid Obesity Diagnosed with Chronic Pain: An Observational StudyPublication . Cota, Cecília Cristina; Miranda-Castro, Stefani; Souza-Gomes, Antônio Felipe; Leite, Luciano Bernardes; Forte, Pedro; Monteiro, António M.; Pereira, William Valadares Campos; Moura, Samara Silva; Nunes-Silva, AlbenáThere are different types of obesity, and the metabolic conditions associated with these phenotypes are also heterogeneous. Overweight and obesity are not only associated with pain but are also identified as risk factors for the development of pain. Objective: This study aimed to compare the levels of inflammatory biomarkers, counting of immune cells, and chronic pain between android and gynoid female patients with obesity. Method: Thirty (n = 30) women took part in this study (18 androids, age: 50.61 +/- 9.41 and 12 gynoids, age: 50.67 +/- 9.45). The participants underwent anamnesis, Visual Numeric Scale (VNS), dual-energy X-ray absorptiometry, and blood sampling for the analysis of leukocytes, C-reactive protein (CRP), and interleukin (IL)-6. Results: The number of total leukocytes in the blood was not different when comparing the android group (6045 mu L) with the gynoid group (5230 mu L). No differences were observed for neutrophils (3440 mu L in android and 3017 mu L in gynoid), lymphocytes (2208 mu L in android and 2115 mu L in gynoid), for monocytes (429.7 mu L in android and 392.8 mu L in gynoid), and basophils (17.27 mu L in android and 15.41 mu L in gynoid). However, there was a significant difference between the number of eosinophils when comparing the android group (137.6 mu L) with the gynoid group (204.9 mu L), p = 0.04. Although both groups presented CRP values above 0.3 mg/dL-indicative of low-grade inflammation-no statistically significant difference was observed. Similarly, no difference was found in pain intensity between groups, as measured by the Visual Numeric Scale (VNS). Conclusions: Although most inflammatory and pain markers did not differ between groups, the higher eosinophil count in the gynoid phenotype suggests immunological distinctions between obesity types. These findings underline the importance of considering body fat distribution in clinical assessments of inflammation and chronic pain in women with obesity.
- Behavioral regulation in sport questionnaire and sport motivation scale-II: a scale comparisonPublication . Bica, Joana; Jacinto, Miguel; Matos, Rui; Amaro, Nuno; Antunes, Raul; Couto, Nuno; Cid, Luís; Forte, Pedro; Monteiro, DiogoThis study compared the psychometric properties of two primary instruments for assessing sport motivation based on Self-Determination Theory: the Sport Motivation Scale-II (SMS-II) and the Behavioral Regulation in Sport Questionnaire (BRSQ). A cross-sectional analysis evaluated the scales' internal consistency, factor structure, convergent and discriminant validity, and model fit, which required post-hoc modifications. Measurement invariance and adherence to the theoretical simplex pattern were also tested. The BRSQ demonstrated generally acceptable reliability, while the SMS-II showed deficiencies in its introjected, external, and amotivation subscales. Both scales faced validity challenges in distinguishing adjacent motivational constructs. Although measurement invariance was supported, correlations deviated from the theoretical quasi-simplex pattern. The BRSQ appears more robust, but neither scale is flawless. Researchers must select instruments aligned with their specific objectives and interpret scores cautiously due to these psychometric limitations. This underscores the need for refined tools to better capture the dynamic complexity of motivation in sports.
- Challenges and potential in implementing STE(A)M in teachers’ practices: a systematic reviewPublication . Teixeira, Patrícia Bértolo ; Rocha, Helena A.; Martins, CristinaThe potential of STE(A)M has been widely recognised in recent years; however, challenges have also been identified in the implementation of this approach, making it important to deepen research into teachers’ practices. In this study, we conducted a systematic review focused on teaching practices within a STE(A)M approach, to understand what challenges and limitations teachers encounter, as well as the possibilities authors suggest to overcome them. The research question is: What are the challenges and potentialities of implementing the STE(A)M approach in teachers’ practices? This review analysed articles indexed in the Web of Science and Scopus databases over the last eight years, following the PRISMA scheme. The 26 articles examined highlight challenges such as time management, lack of resources and funding, limited guidance, gaps in teacher training, difficulty integrating subject areas, issues implementing new technologies and obstacles imposed by school structures. In light of these, the following proposals were suggested: placing greater emphasis on STE(A)M in initial and continuing teacher education, increasing support from schools and government bodies, encouraging collaborative work between teachers from different areas, adopting innovative strategies and methodologies and offering a clearer conceptualisation of STE(A)M.
- Characterization and Comparison of Athletic Performance and Change of Direction Deficit Across Youth Futsal Age GroupsPublication . Oliveira, João P.; Marinho, D.A.; Sampaio, Tatiana; Carvalho, Sílvio; Martins, Hugo; Morais, JorgeFutsal players need peak strength, functional capacity, speed, and explosive lower-limb power for optimal performance. The aim of this study was to (i) characterize and compare anthropometric characteristics, lower limb strength/power, dynamic balance, linear sprint speed, COD performance, and COD deficit across young futsal age groups and (ii) identify key predictors of COD deficit. Methods: Thirty-three male futsal players from three age groups (U13, U15, and U17) were tested. Results: All anthropometric variables showed significant group effects with moderate to strong effect sizes, where U17 presented the largest values, followed by U15 and U13. Strength and power variables presented the same trend. The dynamic balance differed significantly across groups. Significant differences between groups with moderate effect sizes were noted in linear sprints (F = 19.54, p < 0.001, η2 = 0.57), zigzag (F = 19.54, p = 0.002, η2 = 0.35), and COD deficit (F = 19.54, p < 0.001, η2 = 0.46). Post hoc tests revealed that U13 and U15 outperformed U17 in the COD deficit (p < 0.002). The COD deficit showed a quadratic relationship with age, initially improving but later declining in older players (p < 0.001). The body mass and the posteromedial relative difference predicted the COD deficit, with the coefficient of determination (R2) explaining 39% of the COD variance. Conclusions: Coaches and practitioners should utilize COD drills to target various movement patterns and account for pubertal timing, as growth can impact performance
- Child Rights-Based Pedagogy in Early Childhood Education: Insights from Portuguese EducatorsPublication . Ribeiro, Cristiana; Mesquita, Cristina; Hernández Beltrán, JuanPromoting children’s rights in early childhood education is internationally recognised as a priority, yet its practical implementation remains challenging. This qualitative study explored the perceptions of three early childhood educators in northern Portugal regarding children’s rights and how these are reflected in their practices. Guided by an interpretive paradigm, the study sought to understand participants’ beliefs through semi-structured interviews, conducted with full ethical compliance, including informed consent, withdrawal rights, and anonymity. Data were analysed using MAXQDA, through an inductively generated coding system. Findings indicate that educators acknowledge their vital role in upholding children’s rights and in fostering respectful learning environments. However, significant gaps were found in the realisation of the right to participation, with tensions between educators’ stated values and their described practices—particularly regarding children’s involvement in decision-making. A prevailing emphasis on protection often limited children’s autonomy and agency. The study highlights the complexities of translating policy frameworks, such as Portuguese legislation and the UNCRC, into consistent pedagogical action. Despite its small sample size, the study offers valuable insights into the barriers to implementing a rights-based pedagogy and underscores the need for enhanced educator training, active listening practices, and the recognition of play as a fundamental right.
- Comparative analysis of physical fitness and body composition in first-year bachelor sports sciences students from France and PortugalPublication . Morais, Jorge; Larrière, Onésie; Bragada, José A.; Bartolomeu, Raúl Filipe; Magalhães, Pedro; Schnegg, Antoine; Houndekon, Martial; Garnier, Yoann M.; Mourot, LaurentPhysical fitness and body composition are foundational to the training and academic success of sports sciences students. However, baseline physical profiles may vary across institutions and countries, reflecting differences in cultural, educational, and physical activity environments. This study aimed to compare physical fitness levels and anthropometric characteristics of first-year sports sciences students from three European institutions in France and Portugal. A cross-sectional study was conducted with 172 first-year university students (121 males, 51 females) enrolled in sports sciences programs at one French (UMLP) and two Portuguese institutions (IPB and IPG). Participants completed a standardized physical fitness test battery assessing aerobic capacity (estimated VO(2)max), upper- and lower-body strength (handgrip, isometric mid-thigh pull), explosive power (standing long jump), flexibility (sit-and-reach), and balance (standing stork test). Anthropometric measures included body mass, fat mass, and lean mass. Group and gender differences were analyzed using ANOVA and effect sizes. Students from UMLP displayed significantly higher performance in estimated VO(2)max (IPB vs UMLP d = 1.08; IPG vs UMLP d = 0.81), strength (isometric mid-thigh pull [IPB vs UMLP d = 0.65; IPG vs UMLP d = 0.73]), flexibility (IPB vs UMLP d = 0.61; IPG vs UMLP d = 0.69), balance (IPG vs UMLP d = 0.91), and body composition (higher lean mass [IPB vs UMLP d = 0.19; IPG vs UMLP d = 0.28], lower fat mass [IPB vs UMLP d = 0.22; IPG vs UMLP d = 0.31]) compared to their Portuguese peers. IPG students outperformed the other groups in the standing long jump test (IPB vs IPG d = 0.51; IPG vs UMLP d = 1.38). Males consistently outperformed females across all fitness domains except flexibility. Significant group-by-gender interactions were observed for flexibility and strength measures. This study highlights substantial differences in physical fitness and body composition among first-year sports sciences students across institutions in France and Portugal. These findings underline the importance of assessing students' physical readiness at university entry and suggest that institutional and cultural factors may influence physical health trajectories. Targeted interventions may be warranted to ensure baseline fitness equity and promote academic and athletic success.
- Comparative Efficacy of Bodyweight and Free Weights Training on Shooting Strength in Roller HockeyPublication . Paiva, Eduardo; Afonso, Pedro; Leite, Luciano Bernardes; Teixeira, José Eduardo; Forte, Pedro; Rodrigues, Pedro M.This study evaluated the impact of an 8-week training program on two groups of players, one performing free weights training and the other bodyweight training. The sample consisted of 14 athletes with a mean age of 22.6 years. Assessments of shooting strength were conducted before and after the program, measuring shot speed, acceleration, and strength. The free weights training included exercises with dumbbells and barbells, while the bodyweight training included squats, push- ups, and planks. Sessions occurred twice a week, with gradual progress in the number of sets and repetitions. Statistical analyses were performed using GraphPad Prism software, with significance set at p<0.05. Data distribution was tested using the Shapiro-Wilk test, and comparisons between pre- and post-intervention assessments were made with paired t- tests. Results showed significant improvements in shot speed, acceleration, and strength in the free weights training group, while the bodyweight training group showed no significant changes. It was concluded that free weights training is more effective for improving shooting strength in roller hockey players.