Percorrer por autor "Forte, Pedro"
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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.
- Advancing sports science and physical education research through a shared understanding of the term motor performance skills: a scoping review with content analysisPublication . Sortwell, Andrew; Behringer, Michael; Granacher, Urs; Trimble, Kevin; Forte, Pedro; Neiva, Henrique P.; Clemente-Suárez, Vicente Javier; Ramirez-Campillo, Rodrigo; Konukman, Ferman; Tufekcioglu, Ertan; Filiz, Bijen; Branquinho, Luís; Ferraz, Ricardo; Sadeghi, Hassan; Arroyo-Toledo, JaimeBackground: The inappropriate usage of terms and concepts and/or unclear definitions provided in the scientific literature hinder progress in any scientific field. This risk is especially noticeable in applied fields of research such as sports science and physical education. Objective: This study explored existing literature that uses the term 'motor performance skills' and aimed to propose a comprehensive definition to be applied in future research. Method: Following an adapted scoping approach grounded in the rapid review model, we searched electronic databases Pub-Med/Medline, Web of Science, and Scopus until February 2022. The primary demographic focus was sports science and physical education disciplines. After screening of titles and abstracts, 184 papers were identified for a full review. Twenty-two papers met the inclusion criteria from the full review and received qualitative content analysis. The qualitative content analysis focused on the elaborated qualities of the term 'motor performance skill'. Coding was used to identify and extract content, identify patterns, and observe the depth of interpretation of the term. Results: Only six papers used descriptive language, and three used explanatory language to convey aspects of the term's meaning. All included papers extrapolated or provided examples to demonstrate the term's meaning. Based on a collaborative process, the study reached a proposed definition that has the potential to be coined for the term 'motor performance skills' and used in future research. Conclusion: Thus, the current analysis revealed the need to collaboratively address the conceptual ambiguity and develop a comprehensive definition of 'motor performance skills' © 2022 Australian International Academic Centre. All rights reserved.
- Aerobic fitness as an important moderator risk factor for loneliness in physically trained older people: an explanatory case study using machine learningPublication . Encarnação, Samuel; Vaz, Paula Marisa Fortunato; Fortunato, Álvaro; Forte, Pedro; Vaz, Cátia; Monteiro, A.M.Loneliness in older people seems to have emerged as an increasingly prevalent social problem. Objective: To apply a machine learning (ML) algorithm to the task of understanding the influence of sociodemographic variables, physical fitness, physical activity levels (PAL), and sedentary behavior (SB) on the loneliness feelings of physically trained older people. Materials and Methods: The UCLA loneliness scale was used to evaluate loneliness, the Functional Fitness Test Battery was used to evaluate the correlation of sociodemographic variables, physical fitness, PAL, and SB in the loneliness feelings scores of 23 trained older people (19 women and 3 men). For this purpose, a naive Bayes ML algorithm was applied. Results: After analysis, we inferred that aerobic fitness (AF), hand grip strength (HG), and upper limb strength (ULS) comprised the most relevant variables panel to cause high participant loneliness with 100% accuracy and F-1 score. Conclusions: The naive Bayes algorithm with leave-one-out cross-validation (LOOCV) predicted loneliness in trained older with a high precision. In addition, AF was the most potent variable in reducing loneliness risk.
- Aerodynamic analysis of human walking, running and sprinting by numerical simulationsPublication . Forte, Pedro; Sousa, Nuno; Teixeira, José Eduardo; Marinho, D.A.; Monteiro, A.M.; Bragada, José A.; Morais, J.E.; Barbosa, Tiago M.The drag in walking, running, and sprinting locomotion can be assessed by analytical procedures and experimental techniques. However, assessing the drag variations by these three main locomotion’s (i.e., walking, running, and sprinting) were not found using computational fluid dynamics. (CFD). Thus, the aim of this study was two-fold: (1) to assess the aerodynamics of human walking, running, and sprinting by CFD technique; 2) compare such aerodynamic characteristics between walking and running. Three 3D models were produced depicting the walking, running, and sprinting locomotion techniques, converted to computer aided design models and meshed. The drag varied with 4 locomotion type. Walking had the lowest drag, followed-up by running and then sprinting. At the same velocities, the drag was larger in walking than in running and increased with velocity. In conclusion, drag varied with locomotion type. Walking had the lowest drag, followed-up by running and then sprinting. At the same velocities, the drag was larger in walking than in running and increased with velocity.
- Aerodynamics of a wheelchair sprinter racing at the 100m world record pace by CFDPublication . Forte, Pedro; Marinho, D.A.; Morais, J.E.; Morouço, Pedro; Pascoal-Faria, Paula; Barbosa, Tiago M.The aim of this study was to analyze aerodynamics in a racing position of a wheelchair-racing sprinter, at the world record speed. The athlete and wheelchair were scanned at the beginning of the propulsive phase position (hands near the handrims at 12h) for the 3D model acquisition. Numerical simulation was run on Fluent, having as output the pressure, viscosity and total drag force, and respective coefficients of drag at the world record speed in T-52 category. Total drag was 7.56N and coefficient of drag was 1.65. This work helped on getting a deeper insight about the aerodynamic profile of a wheelchair-racing athlete, at a 100m world record speed.
- The Aging Curve: How Age Affects Physical Performance in Elite FootballPublication . Branquinho, Luís; França, Elias; Titton, Adriano; Barros, Luís Fernando Leite; Campos, Pedro; Marques, Felipe O.; Glória, Igor Phillip dos Santos; Caperuto, Erico Chagas; Hirota, Vinicius Barroso; Teixeira, José Eduardo; Forte, Pedro; Monteiro, António M.; Ferraz, Ricardo; Thomatieli-Santos, Ronaldo VagnerBackground: In elite football, understanding how age impacts players’ physical performance is essential for optimizing training, career longevity, and team management. Objectives: This study aimed to compare variations in physical capabilities of professional football players by chronological age and identify peak performance ages. Methods: Data from 5203 match performances across 351 official games were analyzed, involving 98 male players aged 18–39 years. Physical capacities (speed, explosive actions, and endurance) were assessed using the Catapult VECTOR7 system. Results: showed that players over 32 years experienced declines in high-intensity and explosive actions, while endurance remained relatively stable with age. Peak performance occurred around 25.7 years for speed, 24.8 years for endurance, and 26 years for explosiveness. Conclusions: Overall, players aged 17–26 years demonstrated the highest physical performance, with notable declines observed in older age groups.
- Alterações posturais em futebolistasPublication . Forte, Pedro; Reis, António; Barbosa, Tiago M.Objetivo: Este estudo teve como objetivo, analisar a prevalência dos desvios posturais e a relação que possa existir com o nível competitivo e escalão etário, tipo de coordenação dominante, posicionamento em campo, maturação sexual, níveis de força e flexibilidade em jovens futebolistas. Métodos: A amostra, deste estudo transversal, foi constituída por 47 sujeitos do sexo masculino, com idades entre os 9 e 16 (13.02 + 2.51) anos. Para a avaliação postural foi utilizado o software SAPo com um protocolo adaptado à realidade desportiva do futebol. Para avaliação da maturação sexual recorreram-se aos estádios de pilosidade de Morris e Udry (1980). A força máxima isométrica dos membros inferiores foi medida a 60º para os movimentos de flexão e extensão do joelho com um dinamómetro. A flexibilidade foi medida com goniometria. Recorreu-se a procedimentos de natureza descritiva para a caracterização das variáveis em estudo. A análise comparativa inter grupos e intra grupos foi efetuada com recursos aos testes de Kruskall-Wallis, Mann-Whitney e Tukey, para observação das diferenças entre grupos. Com recurso ao teste de Spearmen procurou-se verificar o tipo e magnitude das correlações entre variáveis. Resultados: Os desvios mais prevalentes para a totalidade da amostra foram, na vista anterior do plano frontal, as diferenças verticais entre os acrómios (72%) e das tuberosidades das tíbias (91%), ao nível da coluna vertebral, verificou se uma relativa prevalência de problemas escolióticos sobretudo na região torácica (79%) e na região lombar (64%). O nível competitivo (benjamins, infantis, iniciados e juvenis), posição em campo (médios e avançados), lateralidade (destros e esquerdinos) e maturação sexual explicaram a existência de diferenças significativas na magnitude dos desvios posturais. Na análise associativa, apenas na vista lateral direita do plano sagital foi observada uma correlação forte da magnitude dos desvios entre as vertebras T3 e T7 com a idade e o escalão competitivo. Conclusão: Os resultados do presente estudo parecem sugerir que os jogadores de futebol jovem, estarão propensos a fatores predisponentes ao desenvolvimento de desvios posturais podendo estes vir a ser, por si só, um factor de risco à ocorrência de lesões futuras e assim limitadoras do desempenho futuro.
- Alzheimer sob a perspectiva dos cuidadores formais: podem as tecnologias digitais ser úteis?Publication . Vaz, Cátia; Gonçalves, Vitor; Novais, Célia; Gonçalves, Bruno F.; Rocha, Alberto; Silva, Eduarda; Forte, Pedro; Teixeira, José Eduardo; Baptista, Ricardo; Carvalho, Helena M.; Silva, EduardaA demência de Alzheimer leva a um declínio progressivo da capacidade cognitiva do indivíduo com interferência nas atividades de vida diária. A aplicação de estímulos cognitivos nos estágios iniciais pode ser um valor agregado para retardar o declínio cognitivo. Nesse processo, será que o uso de tecnologias digitais pode contribuir para evitar o uso de medicamentos e retardar a institucionalização de pacientes com Alzheimer? Assim, o objetivo geral deste artigo foi identificar as perceções destes pacientes sobre o uso de tecnologias digitais na estimulação cognitiva de pacientes de Alzheimer com cuidadores formais. Para tal, foi aplicada uma metodologia de investigação-ação, tendo sido pesquisado o estado da arte sobre as tecnologias digitais que pudessem ser aplicadas no âmbito da doença de Alzheimer a partir da perspetiva dos cuidadores formais. Sessenta e dois cuidadores formais participaram neste estudo, dos quais 46 (74,2%) são do sexo feminino e os demais 16 (25,8%) são do sexo masculino. Todos os entrevistados são capazes de identificar sinais de demência de Alzheimer nos pacientes. Com relação ao trabalho com tecnologias digitais com pacientes com demência de Alzheimer, uma grande percentagem dos entrevistados (73,6%) respondeu que só as usa às vezes, e 26,4% disseram que nunca as usam. Os dados sugerem que ainda há resistência ou falta de confiança no uso de tecnologias digitais por parte dos cuidadores formais que trabalham com pacientes com demência de Alzheimer. Contudo, mesmo que eles nunca tenham recebido formação específica nessa área, especialmente sobre estimulação cognitiva, podemos admitir que é compreensível.
- An eight months multicomponent training effect in elderly’s functional fitnessPublication . Monteiro, A.M.; Alves, Emília; Forte, PedroElderly’s physical activity and exercise is a huge concern in fitness instruction to delay physical frailty (Jones & Rikli, 2002). The multicomponent training helps to improve the physical condition in different variables such as strength, resistance, flexibility and balance (Carvalho et al., 2009). Thus, the aim of this study was to assess the influence of an eight months multicomponent training program in functional fitness of community-living elderlies. Forty-nine 64.39 (± 6.33) year old elderlies took part of this research, 11 males who were 67.45 (± 4.93) and 38 females who were 63.50 (± 7.47) years old. All procedures were in accordance to the Declaration of Helsinki and a written consent was obtained from the participants. The multicomponent training program was applied with the Carvalho et al, (2009) recommendations. It was a 8 months program and the training frequency was three times per week. The elderly’s functional fitness was assessed with the functional fitness test (FFT) of Jones & Rikli, (2002). The T-test allowed to assess the differences between the pre and post training program in the body composition. The tests were performed with a significant level of 5%. The multicomponent training program improved significantly the elderly’s functional fitness in upper and lower limbs strength. The other variables didn’t present significant improvements with the multicomponent training program, however, it is worth noting that everyone improved their scores. Thus, it is possible to conclude that the multicomponent training program may improve and/or preserve elderlies’ functional fitness.
- An eight months multicomponent training effect in elderly’s functional fitnessPublication . Monteiro, A.M.; Alves, Emília; Forte, PedroElderly’s physical activity and exercise is a huge concern in fitness instruction to delay physical frailty (Jones & Rikli, 2002). The multicomponent training helps to improve the physical condition in different variables such as strength, resistance, flexibility and balance (Carvalho et al., 2009). Thus, the aim of this study was to assess the influence of an eight months multicomponent training program in functional fitness of community-living elderlies. Forty-nine 64.39 (± 6.33) year old elderlies took part of this research, 11 males who were 67.45 (± 4.93) and 38 females who were 63.50 (± 7.47) years old. All procedures were in accordance to the Declaration of Helsinki and a written consent was obtained from the participants. The multicomponent training program was applied with the Carvalho et al, (2009) recommendations. It was a 8 months program and the training frequency was three times per week. The elderly’s functional fitness was assessed with the functional fitness test (FFT) of Jones & Rikli, (2002). The T-test allowed to assess the differences between the pre and post training program in the body composition. The tests were performed with a significant level of 5%. The multicomponent training program improved significantly the elderly’s functional fitness in upper and lower limbs strength. The other variables didn’t present significant improvements with the multicomponent training program, however, it is worth noting that everyone improved their scores. Thus, it is possible to conclude that the multicomponent training program may improve and/or preserve elderlies’ functional fitness.