Percorrer por autor "Monteiro, Diogo"
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- Anthropometric measures, muscle resistance, and balance in physically active, aged adultsPublication . Rodrigues, Filipe; Antunes, Raul; Matos, Rui; Jacinto, Miguel; Monteiro, Diogo; Forte, Pedro; Monteiro, A.M.; Barbosa, Tiago M.This study aimed to examine the relationship between age, body mass index, muscle strength, and balance in physically active, aged adults. Methods: Eighty-five participants were recruited for this study, having an average age of 70.31 years (SD = 9.90), ranging from 50 to 92 years. Twenty-six (30.6%) participants were male and fifty-nine (69.4%) were female. The participants had an average body mass index of 27.30 kg/m2 (SD = 3.62), ranging from 20.32 to 38.58 kg/m2. Participants undertook the Timed-Up and Go to test balance, and the chair-stand test to assess lower body strength. Hierarchical regression analyses were conducted. Three models (Model 1, 2, and 3) were tested to assess their relationships with balance: M1—Lower body muscle strength; M2—Lower body muscle strength and body mass index; M3—Lower body muscle strength, body mass index, and age. Results: All hierarchical models displayed significant variance. The third model explained 50.9% of the variance in dynamic balance, [F(3, 81) = 27.94, p < 0.001, R = 0.71, Ra2 = 0.51]. The difference in Ra2 between the first, second, and third models was statistically significant (p < 0.05). Age, body mass index, and lower body muscle strength had significant (p < 0.05) correlations with balance. In terms of the significant impact of each predictor, age had the strongest association with balance (p < 0.05). Conclusions: The results are useful to understand mechanisms or diagnose people at risk of fall.
- Behavioral regulation in sport questionnaire and sport motivation scale-II: a scale comparisonPublication . Bica, Joana; Jacinto, Miguel; Matos, Rui; Amaro, Nuno; Antunes, Raul; Couto, Nuno; Cid, Luís; Forte, Pedro; Monteiro, DiogoThis study compared the psychometric properties of two primary instruments for assessing sport motivation based on Self-Determination Theory: the Sport Motivation Scale-II (SMS-II) and the Behavioral Regulation in Sport Questionnaire (BRSQ). A cross-sectional analysis evaluated the scales' internal consistency, factor structure, convergent and discriminant validity, and model fit, which required post-hoc modifications. Measurement invariance and adherence to the theoretical simplex pattern were also tested. The BRSQ demonstrated generally acceptable reliability, while the SMS-II showed deficiencies in its introjected, external, and amotivation subscales. Both scales faced validity challenges in distinguishing adjacent motivational constructs. Although measurement invariance was supported, correlations deviated from the theoretical quasi-simplex pattern. The BRSQ appears more robust, but neither scale is flawless. Researchers must select instruments aligned with their specific objectives and interpret scores cautiously due to these psychometric limitations. This underscores the need for refined tools to better capture the dynamic complexity of motivation in sports.
- Can self-esteem mediate the association between social support and different levelsof physical activity in adolescents?Publication . Lopes, Vitor P.; Monteiro, DiogoThe aim was to analyze the mediation role of self-esteem in the interaction between social support from the best friend, friends, and parents, and physical activity (PA). Participants were N=444 adolescents of both genders (male= 205), aged between 12-18 years (M= 16.02; SD= 1.57). Structural equation modeling, serial mediation and multigroup analysis were used to test the proposed hypothesis. Self-reported instruments were used to collect both PA social support and self-esteem. Self-esteem mediates partially the interaction between different social supports and vigorous PA, independently of adolescent sex. Interestingly, self-esteem was fully mediating the interaction between parents’ social support and vigorous PA in female adolescents. In contrast, self-esteem revealed no mediation in the interaction between social support and light and moderate PA. In conclusion, self-esteem mediates the relationship between social support and vigorous PA, the strength of mediation is higher in girls than in boys, in both genders the mediation is higher when the social support has come from parents.
- Classification of recovery states in U15, U17, and U19 sub-elite football players: a machine learning approachPublication . Teixeira, José Eduardo; Encarnação, Samuel; Branquinho, Luís; Ferraz, Ricardo; Portella, Daniel Leite; Monteiro, Diogo; Morgans, Ryland; Barbosa, Tiago M.; Monteiro, A.M.; Forte, PedroA promising approach to optimizing recovery in youth football has been the use of machine learning (ML) models to predict recovery states and prevent mental fatigue. This research investigates the application of ML models in classifying male young football players aged under (U)15, U17, and U19 according to their recovery state. Weekly training load data were systematically monitored across three age groups throughout the initial month of the 2019–2020 competitive season, covering 18 training sessions and 120 observation instances. Outfield players were tracked using portable 18-Hz global positioning system (GPS) devices, while heart rate (HR) was measured using 1 Hz telemetry HR bands. The rating of perceived exertion (RPE 6–20) and total quality recovery (TQR 6–20) scores were employed to evaluate perceived exertion, internal training load, and recovery state, respectively. Data preprocessing involved handling missing values, normalization, and feature selection using correlation coefficients and a random forest (RF) classifier. Five ML algorithms [K-nearest neighbors (KNN), extreme gradient boosting (XGBoost), support vector machine (SVM), RF, and decision tree (DT)] were assessed for classification performance. The K-fold method was employed to cross-validate the ML outputs. Results: A high accuracy for this ML classification model (73–100%) was verified. The feature selection highlighted critical variables, and we implemented the ML algorithms considering a panel of 9 variables (U15, U19, body mass, accelerations, decelerations, training weeks, sprint distance, and RPE). These features were included according to their percentage of importance (3–18%). The results were cross-validated with good accuracy across 5-fold (79%). Conclusion: The five ML models, in combination with weekly data, demonstrated the efficacy of wearable device-collected features as an efficient combination in predicting football players’ recovery states.
- Comparison of force variables and dynamic strength index between age groups in elite young Brazilian football goalkeepersPublication . Portella, Daniel Leite; Jatene, Pedro; Silva, Alex O.; Santos, Gustavo S.; Monteiro, Diogo; Teixeira, José Eduardo; Branquinho, Luís; Ferraz, Ricardo; Forte, PedroThe 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 Eduardo; Portella, Daniel Leite; Monteiro, DiogoIn recent years, a psychophysiological perspective on physical activity, exercise, and sports research has become more popular. Given the strong connections between psychological and physiological aspects, as well as mental fatigue and diseases, psychophysiological and psychological explanations are required. Moreover, human movement and sports performance can also be affected by psychological factors, whereby the regulation of physical capabilities is significantly influenced by the psychophysiological system. It is possible to explain how physical activity and exercise insights are controlled and managed by pacing behavior, decision-making, self-regulation, and effort perception. This Research Topic’s goal was to discuss the theoretical and methodological assumptions of the psychophysiological perspective on physical activity, exercise, and sports. In this research area, technical, tactical, physiological, cognitive, and psychological topics were explored in relation to other aspects that affect sports and exercise performance, while the effects of psychological factors on training and performance needs were evaluated. Training interventions assessing acute and chronic adaptations using evaluation and testing procedures make them one of the most important topics in this Research Topic. Research on sports coaching and its relations with mental health and performance were also welcome and considered, intending to provide recent developments within sports sciences research.
- Editorial: Towards a psychophysiological approach in physical activity, exercise, and sports, volume IIPublication . Forte, Pedro; Teixeira, José Eduardo; Portella, Daniel Leite; Monteiro, DiogoThe critical role of physical activity in fostering physical and mental health and wellbeing has been well-documented across diverse populations and contexts. Recent studies published in leading journals provide compelling evidence of the multifaceted benefits of exercise, from improving physical metrics such as body mass index (BMI) and waist circumference to enhancing mental health and subjective wellbeing. These insights underscore the importance of promoting physical activity as a cornerstone of public health. Health related physical activity was a very important discussed topic during COVID-19 pandemic, and for that reason, it is cleared illuminated the critical intersection between physical activity and mental health. That's in line with the published study in this Research Topic by Tomezzoli et al. on young Italian athletes. The authors revealed the detrimental effects of sports activity limitations on mental health. The enforced inactivity during lockdowns led to increased anxiety, depression, and a sense of loss among children, adolescents, and young adults. This allows to remind the psychological benefits of regular physical activity and the need for robust policies to ensure continued access to sports and recreational activities. However, where and when to do is a critical aspect and environment may play an important role on wellbeing.
- Editorial: Towards a psychophysiological approach in physical activity, exercise, and sports, volume IIIPublication . Forte, Pedro; Teixeira, José Eduardo; Portella, Daniel Leite; Monteiro, Diogo“Towards a psychophysiological approach in physical activity, exercise, and sports-volume III” explores the complex interactions between physical activity, exercise, and psychological factors in various populations and analytical contexts. A recurring theme across studies is the emphasis on how psychological factors, such as anxiety, self-confidence, and attentional control, interact with physiological outcomes like heart rate variability (HRV) and perceived exertion. Key findings include the enhancement of performance through strategic psychological interventions (e.g., mindfulness, positive thinking) and the understanding that physical activity can alleviate mental health symptoms, especially in populations with chronic conditions such as long COVID. The studies also collectively underscore the importance of a holistic approach to optimizing performance in individual and team sports, where psychological wellbeing plays a crucial role in optimizing physical outcomes.
- Editorial: Towards a psychophysiological approach in physical activity, exercise, and sports, volume IVPublication . Forte, Pedro; Teixeira, José Eduardo; Portella, Daniel Leite; Monteiro, DiogoThe Research Topic “Toward a psychophysiological approach in physical activity, exercise, and sports, volume IV” represents a significant stride forward in the integration of psychological and physiological paradigms in sport and exercise science. This editorial aims to synthesize insights from 23 contributions that deepen our understanding of the complex bidirectional interactions between mind and body in the context of physical activity, sports performance, exercise-based health, and wellbeing promotion. A recurring focus across the Research Topic is the impact of physical activity on emotional regulation and wellbeing. Wang S. et al. demonstrated that Tai Chi significantly improved emotional regulation efficacy and subjective wellbeing in older adults, with emotion regulation acting as a partial mediator. Similarly, Jiang et al. identified that academic self-efficacy was enhanced through physical activity, mediated by future orientation and mental toughness. Among youth populations, Zhang et al. found that parenting styles influenced sport adherence via goal orientation and self-regulation. Complementing this, Li and Zhou examined junior high school students, finding that self-esteem and interpersonal relationships jointly mediated the association between physical exercise and school adaptation. This research emphasizes the need for the multifaceted benefits of physical activity in developmental contexts. From a high-performance perspective, Liu et al. showed that elite karate athletes had superior cognitive inhibition skills compared to sub-elite peers, supporting the neural efficiency hypothesis. Ilbak et al. further validated the relevance of psychophysiological monitoring by showing that perceived exertion aligned well with internal training load in combat sports.
- Motivational correlates, satisfaction with life, and physical activity in older adults: a structural equation analysisPublication . Rodrigues, Filipe; Jacinto, Miguel; Couto, Nuno; Monteiro, Diogo; Monteiro, A.M.; Forte, Pedro; Antunes, RaulMotivation is a crucial factor in predicting health-related outcomes, and understanding the determinants of motivation can provide valuable insights into how to improve health behaviors and outcomes in older adults. In this study, we aimed to investigate the associations between intrinsic and extrinsic exercise motivation, basic psychological needs, satisfaction with life, and physical activity among the elderly population. Methods: The sample consisted of 268 older adults (59 male, 209 female) aged 65–90 years old (Mage = 68.11, SD = 6.95). All participants reported that they were exercising, on average, 1.65 days (SD = 0.51) per week. Factor analysis was conducted using a two-step approach. First, a confirmatory factor analysis and then a structural equation model considering all variables under analysis was performed. Results: the structural model displayed acceptable fit to the data: χ2/df = 3.093; CFI = 0.913; TLI = 0.908; SRMR = 0.071; RMSEA 0.079 [0.066, 0.092]. Significant direct effects were found as theoretically proposed, namely: (a) intrinsic motivation were positively and significantly associated with basic psychological need satisfaction (p < 0.001); (b) extrinsic motivation were negatively but not significantly associated with basic psychological needs (p < 0.001); and (c) basic psychological need satisfaction were positively and significantly associated with satisfaction with life (p < 0.001) and physical activity (p < 0.001). Conclusions: Intrinsic motivation and basic psychological needs play a crucial role in shaping exercise behavior and overall well-being. By understanding these motivation and needs, exercise and health professionals can work towards fulfilling them and achieving a greater sense of satisfaction in the life of the elderly and promote exercise adherence.