Browsing by Author "Rebelo, Miguel"
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- Alterações nas habilidades Motoras em crianças com um ano de idade após confinamento pela COVID-19Publication . Rebelo, Miguel; Rebelo, Miguel; Petrica, João; Batista, Marco; Duarte-Mendes, Pedro; Paulo, Rui; Honório, Samuel; Silveira, Paulo; Serrano, João; Centro de Publicações /Universidade da Maia - Centro de Investigação me Desporto Saúde e Desenvolvimento HumanoO Objetivo do estudo foi verificar os efeitos desse confinamento nas habilidades motoras através de um estudo longitudinal em crianças que no início da pandemia tinham um ano de idade. A amostra foi de 12 crianças de ambos os sexos, na avaliação pré-covid tinham 12.21±2.5 meses e na avaliação pós-covid as mesmas crianças já tinham 48.21±2.6 meses. As habilidades motoras foram avaliadas usando as escalas da PDMS-2. Para a análise estatística, foi utilizado o teste de shapiro-wilk para testar a normalidade e o teste Wilcoxon para comparar os resultados das duas avaliações na mesma amostra. Houve diferenças estatisticamente significativas nas habilidades Posturais, de Locomoção, de Manipulação de Objetos, de Preensão fina (p < 0,01) e de Integração Visuo-Motora (p = 0,008). As crianças na avaliação pós-covid apresentaram, em média, piores resultados em todas as habilidades da Motricidade Global, ao contrário da Motricidade Fina, em que apresentaram melhores resultados na avaliação pós-covid. Estes resultados mostram o impacto negativo da pandemia nas crianças avaliadas com especial enfase na motricidade global, em que a maioria demonstra valores considerados abaixo da média para a idade, nomeadamente nas habilidades posturais, locomotoras e manipulativas e que esta pandemia pode ter trazido graves consequências ao desenvolvimento motor das crianças alertando os profissionais que lidam diariamente com as crianças destas faixas etárias a importância da motricidade global.
- Analysis of anthropometric and physical performance variables in U-17 soccer playersPublication . Honório, Samuel; Batista, Marco; Serrano, João; Vandoni, Matteo; Rebelo, Miguel; Vieira, Fernando; Lopes, André; Santos, JorgeSoccer is considered a multifaceted collective sport, and to reach an elevated level, players must have moderate to high power, good agility, joint flexibility and muscle development. Also, players must be able to generate high torques during fast movements, which implies the development of different capacities, understood as multifactorial preparation. The objective was to analyse the effects of training (aerobic and continuous) on the leg power, fatigue levels, speed, agility, body fat, muscle mass and bone mass of these players. Methods. Seventy-two soccer players, male and under 17, from 4 teams that participated. The teams performed 3 times a week training sessions of about 60 to 90 minutes each. Informed consent requests were given to their parents for authorisation to participate in this investigation. Data was collected in two different time points, about ten months apart. Specific tests were performed for each variable: the vertical jump with Bosco System for leg power, the T-Test for agility, the linear sprint test for speed and the RAST test for fatigue levels. A precision Tanita scale was used for the anthropometric tests such as body fat, muscle mass and bone mass. Statistical procedures were applied through the Wilcoxon test to compare the two time points of evaluation. Conclusions: the implemented training improved all the analysed variables with significant statistical values for leg power, speed, bone mass, muscle mass and fat mass.
- Analysis of the predominance of technical actions used in the 2021 European Judo Championship depending on combat time and golden scorePublication . Batista, Marco; Torres, Diana; Sombra, Katia; Honório, Samuel; Santos, Jorge; Galan-Arroyo, Carmén; Rebelo, Miguel; Silveira, Paulo; Louro, Hugo gonçalo DuarteThe interest of this study perspective, which allows us to interpret competitive action in more detail, is also important to reflect that according to the legal adaptations dictated by the rules of a modality, it makes its study necessary. The objective was to analyse the predominance of technical actions used in the 2021 European Judo Championship based on combat time and golden score. The study sample focused on 400 combats of the European Judo Championship 2021. We used an observation system created for this purpose, according to the classification system proposed by Kodokan. Cross-frequency tables were produced, where the association degree between variables was analysed using the Chi Square test, where the significance level was set at p ≤ .05. We complemented the association analysis between variables by calculating the adjusted standardized residuals. The predominance of techniques and their effectiveness presented a similar hierarchy in both the combat and golden score phases. In golden score, women showed a significant association with hip techniques and men with frontal sacrifice techniques. Female athletes proved to be more effective in percentage terms in the golden score phase.
- Body composition, strength and muscle power indices at the different competitive levels of FutsalPublication . Rebelo, Miguel; Marques, Catarina; Crisóstomo, Rute; Silva Batista, Marco Alexandre; Paulo, Rui; Duarte-Mendes, Pedro; HONÓRIO, SAMUEL; Serrano, JoãoObjective: The aim was to verify the differences in physical condition (body composition, power and muscle strength) in futsal players from three competitive levels. Methodology: Sixty-eight (24.26 ± 4.63 years old) Portuguese futsal players participated in the study, divided into: elite, sub-elite and amateur. We used the bioimpedance, the countermovement jump and the isokinetic dynamometer to assess physical condition, and the Kruskal-Wallis test to compare variables between groups. Results: There were no differences in body composition between groups. Elite players had higher countermovement jump heights than amateur players (p < 0.001). There were significant differences in the isokinetic muscle strength of the knee flexors, with the elite players showing more strength than the amateur players (p = 0.047). Discussion: The results of the research should be contrasted with those of other research found in the literature. Conclusions: The elite players had higher physical condition parameters (more lower limb power and more flexor muscle strength) compared to the amateur players. We would point out that all groups had a high probability of lower limb muscle injury (H/Q ratio < 60%) at this stage of the sports season, alerting training professionals to the importance of individualised physical condition analysis.
- Comparative study of physical activity, leisure preferences, and sedentary behavior among portuguese, italian, and spanish university studentsPublication . Paulo, Rui; Ramalho, André; Scursatone, Isabella; Caire, Maria; Calle, Nicolás Bores; Bores-García, Daniel; Espada, María; Rebelo, Miguel; Duarte-Mendes, PedroObjective: The objective of this study is to describe and compare the levels of physical activity, preferences for leisure-time physical activity, and the frequency of non-sedentary behaviors of Portuguese, Italian, and Spanish students attending higher education. Methods: A total of 1354 students (21.2 ± 2.9 years) participated in the study, with data collected through an online questionnaire for 6 months. Results: The highest levels of sedentary behavior are found among Spanish students, followed by the Portuguese, and lastly the Italians. In relation to physical activity levels, Spanish students perform more low and moderate physical activity, while Italian students perform more vigorous activities and naturally have a lower level of sedentary behavior. Conclusions: However, it is worth highlighting that students from all three countries reach the minimum levels of physical activity recommended by the WHO.
- Descriptive analysis of injury types and incidence during futsal preseason across different competitive levelsPublication . Marques, Catarina; Rebelo, Miguel; Crisóstomo, Rute; Honório, Samuel; Duarte-Mendes, Pedro; Petrica, João; Serrano, JoãoIntroduction: This study aimed to verify the typology and incidence of injury by comparing the different competitive levels of futsal during the preseason. Methods: The sample consisted of 68 senior male futsal players (24.26 ± 4.63 years). Data were collected using an injury recording grid that examined the affected body part, anatomical region, type of injury, mechanism, and severity. Results: It was found that the elite group has the lowest incidence rate of injury (4.8 injuries per 1,000 h of exposure) compared to the sub-elite (11.8 injuries per 1,000 h of exposure) and amateur groups (13.9 injuries per 1,000 h of exposure). However, at this level, there is the highest percentage of injury occurrence (38.5%), the lower limb was the most affected part of the body (30.8%), and ligament (23.1%) and muscle (15.4%) injuries are the most prevalent. The most frequent mechanism of injury was non-traumatic (30.8%), and the majority were moderate injuries in the elite (23.1%) and sub-elite (17.9%) groups and severe injuries in the amateur group (12.5%). Discussion: The amateur futsal players had the highest incidence of injury during the preseason period compared to the other competitive levels. Still, it was at the elite level where the highest percentage of injuries occurred, most of them nontraumatic and of ligament origin, primarily affecting the ankle region. The results highlight the importance of adopting specific injury prevention programs for ligament and muscle injuries during the preseason phase, regardless of the competitive level.
- Desenvolvimento motor da criança: relação entre habilidades motoras globais, habilidades motoras finas e idadePublication . Rebelo, Miguel; Serrano, João; Duarte-Mendes, Pedro; Paulo, Rui; Marinho, DanielO presente estudo sobre o desenvolvimento Motor da criança nos primeiros meses de vida, teve como objetivo verificar a relação entre as Habilidades Motoras e a Idade, e a relação entre as habilidades motoras Globais e Finas em crianças dos 12 aos 46 meses. Para o efeito, desenvolvemos um estudo de natureza quantitativa, com uma amostra de 405 crianças com idades compreendidas entre os 12 e os 46 meses, de ambos os géneros. Os instrumentos usados no estudo foram as Peabody Developmental Motor Scales-2 (PDMS-2). Em termos globais os resultados indicam que existe uma tendência para correlações positivas (maioritariamente moderadas e baixas) entre as variáveis Idade, Habilidades Motoras Globais e Habilidades Motoras Finas, salientando a correlação positiva moderada (p≤0.05; r2=0.265; 0.5≤ r ≤0.7) entre a Idade e a Motricidade Fina e por sua vez uma correlação positiva pequena (p≤0.05; r2=0.217; 0.1≤ r ≤ 0.3) entre a Idade e a Motricidade Global. Podemos assim contatar, uma melhoria destas habilidades à medida que as crianças vão crescendo, salientando melhores resultados na Motricidade Fina.
- Diferenças nas habilidades motoras em crianças entre os 12 e os 23 meses, considerando o tempo da amamentaçãoPublication . Rebelo, Miguel; Serrano, João; Petrica, João; Faustino, António; Duarte-Mendes, Pedro; Paulo, Rui; Marinho, DanielO objetivo deste estudo foi verificar se existem diferenças no desenvolvimento das habilidades motoras (globais e finas) comparando crianças que ainda eram amamentadas por leite materno com as que já não eram ou nunca foram amamentadas. A amostra é de 153 crianças de ambos os sexos (18,22±2,98 meses), 58 ainda são amamentadas por leite materno (17,59±1,92 meses) e 95 já não são amamentadas por leite materno ou nunca foram (19,81±2,95 meses). As habilidades motoras foram avaliadas usando as escalas da PDMS-2. Houve diferenças estatisticamente significantes nas habilidades de locomoção, manipulação fina, integração visuo-motora e na Motricidade Fina. As crianças ainda amamentadas apresentaram, em média, melhores resultados em todas as habilidades motoras, com mais enfase nas habilidades motoras finas. Estes resultados mostram que continuar a amamentar a criança com leite materno pode trazer benefícios, não só nutricionais, imunológicos, psicológicos e sociais(1), mas também na competência motora. O que reforça a sugestão da OMS da importância de continuar-se a implementar medidas que promovam um maior sucesso do aleitamento materno(1), nomeadamente na duração da amamentação após os 6 meses de idade(2).
- Differences in the Development of Motor Skills in Portuguese Children Aged 12 Months after 3 Years of COVID-19 ConfinementPublication . Rebelo, Miguel; Paulo, Rui; Honório, Samuel; Petrica, João; Batista, Marco; Duarte-Mendes, Pedro; Marques, Catarina; Serrano, João(1) Background: The objective of the study was to verify the effects of COVID-19 confinement on motor skills through a longitudinal study in Portuguese children who were one year old at the beginning of the pandemic. (2) Methods: The sample consisted of 88 children of both sexes, in the pre-COVID-19 assessment, they were 13.31 ± 2.4 months old and in the post-COVID-19 assessment, the same children were already 49.31 ± 2.5 months old. Motor skills were assessed using the PDMS-2 scales. For the statistical analysis, the Kolmogorov–Smirnov test was used to test normality, and the Wilcoxon test was used to compare the results of the two assessments in the same sample. (3) Results:There were statistically significant differences in all motor skills assessed, with children presenting, on average, worse results in all global motor skills in the post-COVID-19 assessment, as opposed to fine motor skills, showing better results in the post-COVID-19 assessment. (4) Conclusions: These results show the negative impact of the pandemic on children evaluated with a special emphasis on global motor skills, with the majority demonstrating values considered below average for their age, noting that the pandemic protocols may have had serious consequences on children’s motor development, warning professionals who deal daily with children in these age groups about the importance of stimulating global motor skills.
- Effect of siblings and type of delivery on the development of motor skills in the first 48 months of lifePublication . Rebelo, Miguel; Serrano, João; Duarte-Mendes, Pedro; Paulo, Rui; Marinho, DanielThis study aimed to verify whether the presence of siblings and the type of delivery had an influence on the motor skills development of children in the first 48 months of life. We developed a quantitative study with a sample of 405 children of both genders, divided according to the studied variables: children with siblings, children without siblings, children born via eutocic delivery, and children born via dystocic delivery. The instrument used in the study was the Peabody Developmental Motor Scales-2. Overall, the results indicated that children who had siblings had, on average, better outcomes regarding all motor skills (global and fine). Furthermore, those born via eutocic delivery, on average, had better outcomes regarding all motor skills (global and fine) when compared to children born via dystocic delivery. Thus, the presence of siblings in the family context and the type of delivery positively influenced motor development, especially after 24 months of age, showing that the presence of siblings providing cooperative activities through play and challenges improved cognitive, social, emotional, and physical development. Furthermore, a eutocic delivery, in addition to providing a better recovery from labor and the immediate a ective bond between mother and child, also led to better results in terms of global and fine motor skills.
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