Percorrer por autor "Portella, Daniel Leite"
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- Comparison of force variables and dynamic strength index between age groups in elite young Brazilian football goalkeepersPublication . Portella, Daniel Leite; Jatene, Pedro; Da Silva, Alex O.; dos Santos, Gustavo S.; Monteiro, Diogo; Teixeira, José E.; Branquinho, Luís; Ferraz, Ricardo; Forte, PedroIntroduction: The application of muscle force is a determinant of football success as it is inherent to the motor control and sport. The aims of this study are: (1) to describe force variables Isometric Maximal Force (IMF), Concentric Peak Force (CPPF), and Dynamic Strength Index (DSI) in football goalkeepers from different age groups; (2) to compare these variables’ behavior between those groups. Methods: The sample was formed by 19 youth players (15.97 ± 1.55 years old) from a first-division Brazilian football team. The CPPF and IMF variables were obtained through the Countermovement jump and isometric squat tests, respectively. For data collection, a force plate (Cefise, Brazil) was used with an acquisition frequency of 600 Hz and mono-axial. The DSI was calculated using the ratio between CPPF and IMF. For data analysis, the sample was separated into clusters by age. After the grouping, a descriptive analysis of the data and a comparison between the groups with p < 0.05. Results: The sample was grouped into three groups (GA, GB, and GC) and one of the individuals did not enter the group, totaling 18 individuals in the analyzed sample. The comparison between the ages of the groups showed a significant difference and small and moderate effect size (ES), validating the cluster strategy. The CPPF and IMF variables showed increased values according to chronological age. CPPF showed a significant difference between GA-GB, (ES = very large) GA-GC (ES = very large), and GB-GC (ES = moderate). The IMF variable had significant differences between GA-GB (ES = moderate) and GA-GC (ES = very large). However, DSI showed significant differences only between GA GB (ES = small) and GB-GC (ES = very large). Conclusions: The CPPF and IMF variables had constant increases and distinct values with an increase according to age, and this did not occur for DSI. The difference between CPPF and IMF compared to DSI bring to light the variability in dynamics and proportionality between muscular force in the concentric phase and maximal force in the isometric regime during the developmental process over chronological age in soccer goalkeepers.
- Editorial: Towards a psychophysiological approach in physical activity, exercise, and sportsPublication . Forte, Pedro; Teixeira, José E.; Portella, Daniel Leite; Monteiro, DiogoThis Research Topic aims to look at specific themes related to physiological stress and mental well-being. Additionally, we aim to provide evidence to coaches and sports scientists highlighting the relationship between training and competition demands, related to performance. We also want to analyze the effects of strength and conditioning training, and coaching effects (acute and chronic) on psychological and physiological. Finally, it is our intention to provide scientific literature with evidence for a relationship between movement, behavior and cognition with physiological performance: the psychophysiological approach.
- Editorial: Towards a psychophysiological approach in physical activity, exercise, and sports, volume IIPublication . Forte, Pedro; Teixeira, José Eduardo; Portella, Daniel Leite; Monteiro, DiogoIn recent years, there has been an increase in interest in mental health disorders as a result of mediatic coverage of Olympic athletes’ mental health struggles, and also due to the COVID-19 pandemic lockdowns. These phenomena helped to further exacerbate a problem already extensively present in sport and society. Therefore, applying a psychophysiological approach to physical activity, exercise, and sports research has become very popular. Indeed, mental fatigue and mental disorders are not only psychological in origin, but also require an explanation from a psychophysiological perspective due to the effective interconnection between the psychological and physiological dimensions. Psychological variables can also influence performance and the psychophysiological system has a strong effect on the control of physical capacities. Moreover, pacing behaviour, decision-making, self-regulation, and effort perception can also explain the role of the brain in physical activity and exercise management. Thus, the aim of this Research Topic is to share the impact of a psychophysiological approach in physical activity, exercise, and sports. The goal of this Topic is to address the following: • Factors determining performance, including technical/tactical, physiological, cognitive, and psychosocial; • training and competition demand; • training interventions and testing in sports; • acute and chronic effects of training in psychophysiological variables; • coaching in sports; • strength and conditioning, mental health, and performance; • recent developments within sports sciences research. This Research Topic endeavors to explore at specific themes related to physiological stress and mental well-being. Additionally, we aim to provide evidence to coaches and sports scientists highlighting the relationship between training and competition demands, related to performance. We also want to analyze the effects of strength and conditioning training, and coaching effects (acute and chronic) on psychological and physiological. Finally, it is our intention to provide scientific literature with evidence for a relationship between movement, behavior and cognition with physiological performance: the psychophysiological approach.
- Editorial: Towards a psychophysiological approach in physical activity, exercise, and sports, volume IIIPublication . Forte, Pedro; Teixeira, José Eduardo; Monteiro, Diogo; Portella, Daniel Leite