Browsing by Issue Date, starting with "2022-06"
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- Seasonal variations of the relationships between measures of training monotony and strain in professional soccer playersPublication . Nobari, Hadi; Martins, Alexandre Duarte; Oliveira, Rafael; Paolo Ardigò, LucaThe purposes of this study were (a) to determine the variations in internal and external measures of training monotony (TM) and strain (TS) in professional soccer players according to periods of the season and playing positions, and (b) to analyze the relationships between internal and external measures of TM and TS. Twenty male professional players (age= 29.4 ± 4.4 years) were followed for 20 weeks through session rating of perceived exertion (s-RPE), total distance (TD), high-speed running distance (HSRD) and sprint distance (SpD). Regardless of measure, highest mean TM and TS scores were observed in mid-season and end-season. In general, wingers and strikers tended to have greater values in TM. Midfelders exhibited greater TS of TD and SpD. Correlation results for TM revealed that s-RPE was positively associated with SpD in early-season (r= 0.608) and negatively associated in mid season (r = − 0.506). Regarding the TS, result demonstrated that s-RPE is negatively associated with HSRD in early-season (r= − 0.464) and positively associated in mid-season (r= 0.476). In general, there diferent meanings in correlations between internal and external measures across the season. On the one hand, our fndings highlighted that TM and TS of professional soccer players is sensitive to period of the season and player’s position, but on other hand, correlation analyses proved that changes in one external/internal measure does not cause changes in another external/internal measure which support the constant monitoring of these values across the season
- A divulgação de informação de responsabilidade social nos websites das misericórdias de PortugalPublication . Zabolotnic, Corneliu; Robalo, RuiEste estudo analisou a divulgação de informação de Responsabilidade Social (RS) nos websites das misericórdias que fazem parte da União das Misericórdias Portuguesas, adotando uma abordagem qualitativa baseada no método de análise de conteúdo. Este estudo contribuiu para a temática de divulgação de RS de três formas. Adiciona evidência empírica relativa a um tipo de entidade sem fins lucrativos diferente do que é tendencialmente estudado. Evidência que as Misericórdias utilizam os seus websites principalmente para divulgar informação sobre a sua área de trabalho e as suas atividades. E demonstra que a divulgação de informação de RS depende muito das características de cada tipo de organização sem fins lucrativos.
- A construção de exposições sobre controvérsias sociocientíficas: potencialidades educativas identificadas por alunosPublication . Reis, Pedro; Tinoca, Luís; Baptista, Mónica; Linhares, ElisabeteO Projeto IRRESISTIBLE teve como objetivo envolver professores, alunos e membros da comunidade na discussão sobre Investigação e Inovação Responsáveis (IIR), promovendo a construção de conhecimento sobre tópicos de investigação de ponta (e controversos) (Controvérsias Sociocientíficas - CSC) e a discussão sobre os critérios que os processos de investigação/inovação devem respeitar para serem considerados responsáveis. Este artigo apresenta resultados sobre o potencial educacional das exposições IRRESISTIBLE construídas pelos alunos sobre CSC e as suas dimensões de IIR. As exposições foram construídas pelos alunos em diferentes contextos - escolas, universidades, museus e locais públicos - e foram assumidas como uma estratégia de ativismo através da qual os alunos informaram a comunidade sobre a CSC que haviam investigado e desencadearam discussão sobre as condições necessárias para garantir práticas de IIR nessas áreas. Os dados foram obtidos por meio de entrevistas com alunos participantes de 10 países. Os resultados gerais indicam que os alunos melhoraram as suas perceções sobre as suas competências de desenvolvimento de exposições como forma de conscientizar sobre temas relacionados com ciência, tecnologia e sociedade. Esta atividade reforçou a perceção dos alunos de que nas aulas de ciências eles desenvolvem projetos socialmente relevantes e aprendem como influenciar as decisões de outros cidadãos sobre questões sociais relacionadas com ciência, tecnologia e ambiente, com o objetivo de garantir um futuro mais sustentável.
- Retrato de uma pandemia no jardim de infância: perspetivas de crianças e de estagiárias em formação inicial de docentesPublication . Piscalho, Isabel; Godinho, Jessica; Guedes, SofiaÉ consensual que a educação de infância beneficia o percurso educativo das crianças por ser um “espaço” que tem por função a construção de vivências, de interações, de partilha, além de proporcionar o desenvolvimento motor, social, emocional, cognitivo e linguístico da criança. Este artigo resulta dos desafios e oportunidades sentidos por duas estudantes (par pedagógico de estágio) no âmbito da prática supervisionada em educação pré-escolar, do mestrado em educação pré-escolar e ensino do 1.º ciclo do ensino básico de uma instituição de ensino superior politécnico em tempos de pandemia COVID-19. Este estudo exploratório, a partir de narrativas de formação, desenvolveu-se em dois eixos de análise com as seguintes finalidades: estudar as perspetivas das futuras profissionais de educação de abordagens, principalmente, por meio de ensino remoto6 ; diferentes procedimentos de avaliação, etc. (Nóvoa, 2022).
- Variations of High-Intensity GPS Derived Measures between Playing Status during a Full Soccer Season in a Professional Male TeamPublication . Nobari, Hadi; Gholizadeh, Roghayyeh; Martins, Alexandre Duarte; Vega, Ricardo De la; Oliveira, RafaelThis study’s aim was twofold: (i) to compare starters and non-starters on a professional soccer team in terms of variations in training intensity indexes across a season, calculated through total distance, sprint distance, accelerations (Acc), and decelerations (Dec) and (ii) to analyse the relationship between the intensity indexes for each playing status. Methods: Nineteen players (age, 29.4 ± 4.4 years; height, 1.8 ± 0.1 m; body mass, 74.8 ± 2.3 kg) were divided into starters and non-starters and followed for 43 weeks using global positioning systems. Results: Training intensity measures (acute:chronic workload ratio [ACWR], coupled and uncoupled) were higher during the latter stage of the season. Total distance peaked during the mid-season, whereas the highest value for exponentially weighted moving average (EWMA) was recorded later in the season. Interestingly, the EMWA of total distance showed little variation during the season for players of both playing statuses. The EWMA of total distance showed a significant higher value for starters than non-starters (p = 0.036; g = 1.27 [0.31, 2.32]). The interruption in games between week 34 and week 35 due to COVID-19 moved some measures into the injury risk zone — namely, the ACWR coupled of sprint distance and Dec; the ACWR uncoupled of total distance, sprint distance, Acc, Dec; and the EWMA of sprint distance, Acc and Dec. Conclusions: The highest training intensity measures were reported late in the season and were similar between starters and non-starters. Across the season, only one difference between starters and non-starters occurred, revealing that training intensity was properly managed throughout the season regardless of the status of the players.
- Mindfulness na educação pré-escolar e no 1.º ciclo do ensino básico: um estudo exploratórioPublication . Cabral, Sara; Piscalho, Isabel; Seixas, SóniaO presente estudo foi elaborado no âmbito do mestrado em educação pré-escolar e ensino do 1.º ciclo do ensino básico. O ambiente que envolve a criança é fundamental para um desenvolvimento harmonioso, assim, quando se verificou a presença constante do fator stress, tornou-se pertinente aprofundar a abordagem mindfulness e perceber qual a sua importância nos contextos educativos. Este estudo exploratório, de natureza qualitativa, desenvolveu-se em duas etapas: a primeira consistiu no desenvolvimento de atividades concretas baseadas em mindfulness nos contextos de jardim de infância e de 1.º ciclo do ensino básico; a segunda, na realização de entrevistas semidiretivas realizadas a oito especialistas reconhecidos no âmbito do mindfulness. Este exercício investigativo sugere que o mindfulness pode ser uma ferramenta importante para as crianças por promover o autoconhecimento e a autorregulação emocional. Ao cultivar a gentileza, a empatia, a gratidão e a generosidade contribui-se para a tomada de consciência de uma humanidade comum. A abordagem mindfulness é importante em contexto educativo pois sensibiliza para uma visão holística do desenvolvimento da criança.
- Reflexão sobre práticas de educação inclusiva no contexto de iniciação à prática: processo de autoformaçãoPublication . Guedes, Sara; Piscalho, Isabel; Uva, MartaTodas as crianças deverão ter direito à aprendizagem no quadro de uma educação de qualidade e, efetivamente, inclusiva. Todavia, os processos de Educação Inclusiva (EI) têm sido uma problemática constantemente presente na prática pedagógica e profissional dos/as docentes desde a formação inicial. É muito importante que um/a docente, em qualquer nível de ensino, seja promotor de uma educação de, com e para todos/as, independentemente das diferenças e características da pessoa. Uma escola inclusiva é aquela que abre as portas e garante que, à saída, os/as aprendentes conseguiram alcançar aquilo a que têm direito, ancorada num perfil de base humanista e no desenvolvimento de valores e competências que os/as torna aptos/as ao exercício de uma cidadania ativa, exercida em liberdade, democracia e bem-estar (Costa, 2018).
- Comparisons between bioelectrical impedance variables, functional tests and blood markers based on BMI in older women and their association with phase anglePublication . Oliveira, Rafael; Leão, César; Silva, Ana Filipa; Clemente, Filipe Manuel; Santamarinha, Carlos Tadeu; Nobari, Hadi; Brito, JoãoThe aim of the present study was to compare electrical bioimpedance variables, blood markers and functional tests based on Body Mass Index (BMI) in older women. Associations between Phase Angle (PhA) with functional tests and blood markers were also analyzed. A total of 46 independent elderly people participated in the study, and they were divided into four groups according to BMI values: Group 1 (G1, BMI < 25 kg/m2); Group 2 (G2, BMI > 25–30 kg/m2); Group 3 (G3, BMI > 30–35 kg/m2); Group 4 (G4, BMI > 35 kg/m2). In addition to the weight and height used to calculate the BMI, the following body composition variables were collected: fat mass (FM), fat-free mass, intracellular water (ICW), extracellular water (ECW), total body water (TBW) and PhA (50 kHz) through InBody S10 equipment. Functional capacity was assessed using the Fullerton battery of tests: arm-curl; chair-stand; 6 min walking test (6MWT); time up-and-go test (TUG); standing on one leg (SOOL) and take 10 foot-lines (10FL). The main results showed differences between groups in the tests: 6MWT, SOOL and 10FL between G1 vs. G3 and G2 vs. G3 (p < 0.05); ACT, AIC and AEC between G1 vs. G4 (p < 0.05); FM among all groups (p < 0.05). Negative correlations were found between PhA and the agility test in G1 (r = −0.848; p = 0.008) and G4 (r = −0.909; p = 0.005); PhA and chair-stand in G3 (r = 0.527; p = 0.044); PhA and forearm flexion in G3 (r = 0.641; p = 0.010) and G4 (r = 0.943; p = 0.001); PhA and 6MWT in G4 (r = 0.771; p = 0.042). This study found that there is a clear trend towards better functional capacities with better parameters of body composition. Although there were no differences between groups in PhA, associations were found between different functional tests with PhA, which reveals the importance of this variable as a marker of health status.
- Comparison of Electric Vehicle Charging Efficiency with IEVCC and a typical EVSEPublication . Cardoso, Filipe; Rosado, José; Silva, MarcoMore than a fashion trend, EVs (Electric Vehicles) are here to stay and present themselves as a solution for combating climate change. In addition to the TCO (Total Cost Ownership) reductions, these vehicles are much more efficient than their equivalent ICE (Internal Combustion Engine) counter parts. Even if all the energy used to charge an EV comes from renewable sources, one of the points in the energy transfer chain, where efficiency can be optimized is in the charging process, whose efficiency depends on the charging power. This results from the fact that the EV internal charger has a fixed minimum power consumption to operate. Charging with a higher power results in less time charging, so less time is spent wasting energy on the EV internal charger. EVs come equipped with an internal charger whose charging power can be controlled by an external charge controller, commonly known as an EVSE (Electric Vehicle Supply Equipment). Manufacturers typically supply EVSEs with a fixed charging power setting, so they can be used on a household plug without any safety issues concerns. Usually, this power is set to around 2.3 kW for 230 V, but it is not uncommon to find values around 1.84 kW and very rarely 2.76 kW (which cor- responds to currents of 8∼12A). Often these EVSEs, due to the low charging power, do not always allow the users to restore the total charge used on a common day. In addition, the use of energy in a house is conditioned by the contracted power, which, if exceeded, triggers the main switchboard of the house. This requires some scheduling to manage an EV chargng session in conjunction with other house appliances usage. The use of an EVSE that considers the instantaneous house consumption and adjusts the EV charging to the maximum available power, allows to maximize the charging efficiency. A new EVSE that implements these functionalities has been developed and is addressed in this work. This EVSE, which is called IEVCC (Intelligent Electric Vehicle Charger Controller) is compared with a fixed EVSE, and the results show greater efficiency in the charging process.
- Effects of high-intensity resistance training on physical fitness, hormonal and antioxidant factors: a randomized controlled study conducted on young adult male soccer playersPublication . Silva, Ana Filipa; Aghidemand, Mohammad Hosein; Kharatzadeh, Masoud; Ahmadi, Vahab Khan; Oliveira, Rafael; Clemente, Filipe Manuel; Badicu, Georgian; Murawska-Ciałowicz, EugeniaPurpose: The aim of this study was to test the effects of high-intensity resistance training (HIRT) intervention on the physical fitness, hormonal and antioxidant factors of adult male soccer players. Methods: A randomized controlled study design was implemented. Eighteen soccer players (age: 20.3 ± 0.66 years; stature: 174.0 ± 6.01 cm; body mass: 69.1 ± 6.4 kg; body mass index: 22.8 ± 1.6 kg/m2 ) voluntarily participated in this study. Players were assessed before and after an intervention lasting 8 weeks, with three training sessions a week. Assessments of physical fitness included the Yo-Yo intermittent recovery test level 1 (YYIRT1), 10-, 20-, and 30 m sprint time (ST), running-based anaerobic sprint test (RAST) and change-of-direction time (COD). Hormonal tests ncluded cortisol, testosterone and growth hormone (GH), whereas the antioxidant assessment included superoxide dismutase (SOD), malondialdehyde (MDA) and glutathione (GSH). Results: Between-group analysis revealed no significant differences at baseline, whereas it revealed that HIRT presented significant better results than the control group on YYIRT (p = 0.032), 10 m ST (p = 0.041), 20 m ST (p = 0.040), 30 m ST (p = 0.044), RAST (p = 0.013), and COD (p = 0.031) after the intervention period. The within group analysis revealed that the HIRT group significantly improved the YYIRT1 (p < 0.001), VO2max (p < 0.001), 10 m ST (p < 0.001), 20 m ST (p = 0.006), 30 m ST (p < 0.001), RAST (p < 0.001) and COD (p < 0.001). Moreover, HIRT group significantly reduced the cortisol (p < 0.001) and MDA (p = 0.021), whereas it significantly increased the GH (p < 0.001), testosterone (p < 0.001), SOD (p = 0.009) and GSH (p = 0.005). Conclusions: The HIRT is effective for improving physical fitness, revealing significant better adaptations than controls. Moreover, hormonal and antioxidant adaptations are also confirmed after HIRT intervention.