Browsing by Issue Date, starting with "2025-07"
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- Ciência e tecnologia no diagnóstico de doenças de plantas: avanços para uma agricultura sustentávelPublication . Varanda, Carla; Belbute, Diogo; Magrinho, Beatriz; Materatski, Patrick
- Statistical approach to the efficacy of individual cognitive stimulation in Alzheimer's Disease:the added value of meta-regression and subgroup analysisPublication . São João, Ricardo; Henriques, Susana JustoAlzheimer’s disease (AD) is the most common form of dementia, accounting for approximately 60–70% of all cases. Its prevalence is expected to double by 2050, potentially affecting over half a million people in Portugal. Cognitive stimulation is a recommended psychosocial intervention for individuals with AD. To assess the effectiveness of such interventions, repeated-measures ANOVA or mixed linear models (MLMs) are commonly used.
- Treinador-Adjunto e analista na 1ª Divisão Nacional Sub-15. A influência do número e posicionamento das balizas em jogos reduzidos condicionadosPublication . Freitas, Rafael Lanceiro Bernardes; Miguel, MauroO presente relatório descreve o estágio realizado no âmbito do Mestrado em Treino Desportivo – Especialização em Futebol, desenvolvido na Associação Académica de Santarém. A prática dividiu-se entre a função de treinador-adjunto e analista da equipa Sub-15 (1ª Divisão Nacional de Iniciados) e a de treinador principal da equipa Sub-9 (Traquinas). O estágio teve como objetivos principais aplicar conhecimentos teórico-práticos, desenvolver competências técnico-profissionais e realizar investigação científica. A componente prática do estágio permitiu a integração plena na dinâmica dos treinos e competições, com responsabilidades que incluíram o planeamento, operacionalização e análise do treino, elaboração de relatórios de jogo, observação de adversários e aplicação de princípios de treino ajustados aos diferentes escalões etários. Paralelamente, foi conduzido um estudo centrado na influência do número e do posicionamento das balizas em Jogos Reduzidos Condicionados (JRC), com o objetivo de perceber de que forma esses elementos condicionam as ações técnico-táticas dos jogadores, havendo também resultados comparativos entre dois grupos distintos (mais e menos utilizados). Os resultados revelaram que menos balizas potenciam maior número de dribles, enquanto mais balizas favorecem maior frequência de passes progressivos. Verificou-se também uma superioridade quantitativa do grupo 1 em relação ao grupo 2, na maioria das várias tipologias de passe. Conclui-se que a manipulação das balizas influencia o comportamento técnico-tático dos jogadores, destacando a importância do design dos JRC na formação desportiva. O relatório aborda ainda os principais desafios, aprendizagens e reflexões do percurso desenvolvido ao longo da época.
- A função de observador e analista em contexto de Sub-17 feminino & estudo dos pontapés de canto no futebol de formação femininoPublication . Severiano, Nelson Sebastião Paulo; Teixeira, EduardoEste documento é desenvolvido no âmbito do 2º ano do 2º Ciclo do Mestrado em Treino Desportivo, especialização em futebol decorrente na Escola Superior de Desporto de Rio Maior. Consiste num relatório de estágio e um estudo que visam a obtenção do grau de mestre em Treino Desportivo pela Escola Superior de Desporto de Rio Maior. O relatório está dividido em duas partes. Uma primeira parte acerca da questão prática, o estágio, onde o estagiário colocou em teste os conhecimentos e práticas adquiridos ao longo da sua formação académica. Uma segunda parte, relativa ao estudo referente às bolas paradas defensivas no Campeonato Distrital Feminino da AF Lisboa em sub-17. Na primeira fase o estagiário fez uma reflexão da sua época de estágio, aprofundando as áreas da observação e análise, departamento onde esteve inserido, do planeamento e operacionalização, área onde teve bastante intervenção e também da área da gestão de equipas e pessoas. Na segunda fase o estagiário fez a análise de todas as bolas paradas defensivas dos adversários que defrontaram a sua equipa durante o período competitivo.
- The professional careers of former portuguese football players: a sociodemographic and professional approachPublication . António Vicente; Teixeira, Eduardo Filipe; de Lima e Cunha Hopffer Romero, Félix Luís; da Conceição Miguel, Mauro; Silva, Carlos; FerreiraIntroduction: The study is aimed to identify sociodemographic and professional characteristics related to the careers of former Portuguese football players. Methodology: The sample consisted of 84 Portuguese former players (48.8 ± 8.2 years old) with at least 8 years of professional experience, who finished their careers between 1988 and 2018. Quantitative data was collected from a validated semi-structure interview guide. Results and Discussion: Former Portuguese players had a career of 15.2 ± 3.1 years with more 6.4 ± 2.2 years of youth federated formation. Significant statistical differences were seen between former players with different competitive levels (t(71)=3.843; p=0.001) and international status (t(82)=-2.740; p=0.008). During their careers, 36% accomplish academic formation and 61.9% pursued technical education. Academic habilitation was statistically significant relationships with competitive level (χ2(1)=9.655; ρ=0.002) and international status (χ2(1)=6.930; ρ=0.008), unlike what happened with technical qualification (p>0.05). The majority of former players marry (83.3%) and have children during the career (82.2%). The divorce rate is 15%. Residential mobility is high (8.1 ± 5.55 years). The professional incomes were considered high or very high and 16.7% of former players developed addictions during their career. Conclusion: Former players with higher competitive levels and international status tend to have longer careers. Conversely, they tend to invest less in academic formation. The results reveals that the football career is brief and presents stress and risk factors, mainly at higher competitive levels. The findings contribute to a better understanding and discussion of the professional careers of former Portuguese football players.
- Intervenção do treinador-adjunto/analista no processo de treino e competição de uma equipa sénior B femininaPublication . Ferreira, João Gonçalo Carvalho; Teixeira, EduardoO presente Relatório de Estágio descreve a intervenção do Estagiário na função de Treinador-adjunto/Analista da Equipa Sénior B Feminina do Sport Lisboa e Benfica, que participou no Campeonato Nacional Feminino – II Divisão, durante a época desportiva 2023/2024, sagrando-se campeã nacional. Estruturado em três Capítulos distintos, mas complementares, o relatório aborda: Capítulo I – O Estágio, que descreve detalhadamente as funções e tarefas desempenhadas pelo Estagiário no contexto futebolístico em que esteve inserido, com especial foco na área da observação e análise, sendo complementado por uma abordagem multidisciplinar que integra diversas áreas fundamentais para o treino e para o jogo de Futebol; Capítulo II – Estudo “Social support, network, and relationships among coaches in different sports: a systematic review”, que analisa os diferentes tipos e níveis de suporte social fornecidos a treinadores de diferentes modalidades, investigando o impacto desse suporte no seu bem-estar, com o objetivo de melhorar a qualidade de vida, o desempenho e a eficácia no trabalho; Capítulo III – Balanço Final do Estágio, no qual são analisados os principais desafios e aprendizagens da experiência, tanto no contexto futebolístico como nas atividades extrafutebol, que contribuíram para a evolução do Estagiário enquanto Treinador. Desenvolvido no âmbito do Mestrado em Treino Desportivo, da Escola Superior de Desporto de Rio Maior – Instituto Politécnico de Santarém, o Estágio permitiu aplicar, avaliar e aprofundar diversas competências teórico-práticas, promovendo a capacidade analítica, pedagógica e de adaptação a diferentes desafios, reforçando a integração de estratégias multidisciplinares no Futebol de Formação.
- Psychosocial risk and engagement in early childhood professionals: insights from a regional portuguese studyPublication . São João, Ricardo; Mendes, NéliaIntroduction: The European Agency for Safety and Health at Work recognizes psychosocial risks in the workplace as a major threat to workers' health and safety. Work engagement has emerged as a strong predictor of performance and productivity. Therefore, it is crucial to investigate these concepts among professionals from the Local Early Intervention Teams (LEI) of the National Early Childhood Intervention System (SNIPI) within the Lisbon and Tagus Valley Regional Subcommittee (SCRLVT), who are often exposed to high work demands. This study aimed to identify psychosocial risks and engagement levels, analyze variations according to sociodemographic and professional characteristics, examine differences across engagement dimensions, and explore the relationship between psychosocial risks and engagement. Methods: A cross-sectional study was conducted with 468 professionals from the ELIs of SCRLVT during November and December 2024, using an online questionnaire comprising three instruments: a sociodemo-graphic questionnaire, the Copenhagen Psychosocial Questionnaire III (COPSOQ III), and the Utrecht Work Engagement Scale (UWES-9), both validated for the Portuguese population. Psychosocial risk and work engagement levels were assessed, as well as their correlation. Additionally, associations between sociodemo-graphic and professional variables and these constructs were analysed. Finally, post hoc analysis was performed to compare the domains of UWES-9. Results: The response rate was 22.20% (n=103), with a predominantly female sample. High psychosocial risk levels were found in cognitive (90.29%) and emotional demands (81.55%). Health and well-being domains showed moderate risk, while others exhibited low risk. Overall work engagement was moderate, with Absorption standing out at a high level (M = 4.46). Post hoc tests revealed significant differences between Dedication and Vigor (p = 0.005). A significant negative correlation was found between global psychosocial risk and engagement (p < 0.001; ρ = -0.536), with relevant associations with sociodemographic and professional variables. Conclusions: This study identified a significant relationship between psychosocial risks and work engagement among ELI professionals at SCRLVT, with higher risks associated with lower engagement. Positive aspects, such as the perceived meaning of work and high Absorption levels, were also highlighted. Macro, organizational, and individual-level measures are suggested to promote well-being and engagement. This research is pioneering within this professional group and contributes to the validation of COPSOQ III in Portugal, despite limitations such as a low response rate and the scarcity of comparable studies.
- Psychosocial risk and engagement in early childhood professionals: insights from a regional portuguese studyPublication . São João, Ricardo; Mendes, NéliaThe European Agency for Safety and Health at Work recognizes psychosocial risks in the workplace as a major threat to workers' health and safety. Work engagement has emerged as a strong predictor of performance and productivity. Therefore, it is crucial to investigate these concepts among professionals from the Local Early Intervention Teams (LEI) of the National Early Childhood Intervention System (SNIPI) within the Lisbon and Tagus Valley Regional Subcommittee (SCRLVT), who are often exposed to high work demands. This study aimed to identify psychosocial risks and engagement levels, analyze variations according to sociodemographic and professional characteristics, examine differences across engagement dimensions, and explore the relationship between psychosocial risks and engagement.
- Statistical Approach to the Efficacy of Individual Cognitive Stimulation in Alzheimer's Disease : The Added Value of Meta-Regression and Subgroup AnalysisPublication . São João, Ricardo; Henriques, Susana JustoIntroduction: Alzheimer’s disease (AD) is the most common form of dementia, accounting for approximately 60–70% of all cases. Its prevalence is expected to double by 2050, potentially affecting over half a million people in Portugal. Cognitive stimulation is a recommended psychosocial intervention for individuals with AD. To assess the effectiveness of such interventions, repeated-measures ANOVA or mixed linear models (MLMs) are commonly used. Methods: Data were drawn from a multicenter randomized controlled trial with a repeated-measures experimental design (pre-intervention, post-intervention, and follow-up). Assessments were conducted at three time points: before the intervention (baseline, T0), immediately after its completion (T1), and 12 weeks later (follow-up, T2). Global cognitive functioning, memory, and executive function were assessed using standardized instruments. The 'moderate' and 'moderately severe' of the Alzheimer's Disease Severity classification were considered. The standardized mean difference (SMD), adjusted using Hedges’ g method, was calculated to estimate the direction and magnitude of the effect between the experimental and control groups. Effects were presented using forest plots, and heterogeneity across outcomes was assessed using the I², τ², and Q-test statistics. In cases of low heterogeneity, the analysis was complemented with meta-regression models and subgroup analyses. Results: Low heterogeneity was observed across group assessments (I² = 23.1%; τ² = 0.035; Q-test p-value = 0.22), leading to subgroup analysis and meta-regression to compare effects across severity levels. Subgroup analysis revealed a significant positive effect in the experimental group (0.4848, 95% CI [0.2222; 0.7474], p <0.001). The meta-regression model, using severity level as an explanatory variable and SMD as the response variable, showed an intercept of 0.48 and a coefficient of -0.6891 (95% CI [-1.0911; -0.2872], p<0.001). Conclusions: This study demonstrated a significant difference between the two severity levels, suggesting that disease severity may moderate the intervention's effectiveness. The proposed statistical approach offers a viable alternative to standard models (ANOVA and MLM) in studies involving two or more experimental groups. These findings may potential clinical relevance for evaluating the effectiveness of non-pharmacolo- gical interventions and strategies designed to promote cognitive health in older adults with dementia.
- Correlating diurnal variations in peak athleticism with buccalgene expression in youth football playersPublication . Thomas, A.; Wheeler, J.; Bishop, R.; Prato, M.F.G.; Karakuş, O.; Cain, E.; Kana-Ah, A.; Nisbet, D.; Morgans, Ryland; Oliveira, RafaelHourly variations in athletic performance are a well-documentedphysiological phenomenon in individual and team sports includingfootball. Measuring the timing of maximal performance couldpotentially improve performance. Evidence suggests that buccalgene expression correlates with athletic performance, yet this hasnot been studied in sport-specific participants. Therefore, the studyaimed to (A) examine the expression of Per2 and Bmal1 genes in 45youth football players and correlate with countermovement jump(CMJ) performance; (B) investigate the fluctuations in Per2 andBmal1 expression levels and CMJ performance at various timepointsduring a regular training day. CMJ metrics (Reactive Strength Index-Modified, Force at Peak Power, Eccentric Duration, and Peak Power)and gene expression levels were measured in 45 youth footballplayers at 08:30 and 17:30. Exercise timing made a significant dif-ference in each measured performance metric at the individual andsquad level. Thirty-four participants displayed increases in RSI-mod(p < 0.001) over the morning measurements. This contributed to an8% increase in overall squad performance (p = 0.0009), which sig-nificantly correlated to buccal gene expression (R2 = 0.94). Profilingplayer buccal gene expression could inform the timing of trainingand rehabilitation protocols to coincide with maximal athletic per-formance in football, other team sports, and individual sports.
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