41 documents found, page 1 of 5
Machine learning prediction of adolescent obesity using physical fitness data
Sampaio, Tatiana; Encarnação, Samuel; Amaro, Bruna; Ribeiro, Joana; Branquinho, Luís; Monteiro, António M.; Teixeira, José Eduardo; Hattabi, SoukainaThe escalating prevalence of obesity among adolescents has emerged as a critical global public health challenge. Machine learning techniques have been used to predict obesity in adolescents. This study aimed to develop and validate a robust obesity prediction model for adolescents using this hybrid approach, leveraging data from a diverse cross-sectional population-based study. The hybrid method combines statis...
Characterization and Comparison of Athletic Performance and Change of Direction...
Oliveira, João P.; Marinho, D.A.; Sampaio, Tatiana; Carvalho, Sílvio; Martins, Hugo; Morais, J.E.Futsal players need peak strength, functional capacity, speed, and explosive lower-limb power for optimal performance. The aim of this study was to (i) characterize and compare anthropometric characteristics, lower limb strength/power, dynamic balance, linear sprint speed, COD performance, and COD deficit across young futsal age groups and (ii) identify key predictors of COD deficit. Methods: Thirty-three male ...
Characterization of physical performance and change of direction deficit across...
Oliveira, João P.; Marinho, D.A.; Jacinto, Pedro; Sampaio, Tatiana; Morais, J.E.Volleyball performance relies heavily on agility, strength, and the ability to change direction, yet there is limited research investigating these physical attributes across different age groups in youth volleyball players. The change of direction (COD) deficit-a metric that isolates directional efficiency by comparing agility to linear speed-may provide a more nuanced understanding of an athlete's movement cap...
Impact of a six-week training program on physical fitness and performance of yo...
Oliveira, João P.; Marinho, D.A.; Sampaio, Tatiana; Kilit, Bulent; Morais, J.E.This study aimed to classify young tennis players into sub-groups (clusters) based on their performance and physical fitness determinants and to analyze their cluster assignment change over six weeks of intervention. A sample of young athletes aged 10–14 years was used, and players were classified according to their International Tennis Number (ITN) and various physical fitness metrics after a six-week specific...
Níveis de atividade física de crianças de um meio rural do Nordeste de Portugal...
Sampaio, Tatiana; Teixeira, José Eduardo; Magalhães, Pedro; Vasques, CatarinaA atividade física (AF) e o comportamento sedentário (CS) são componentes críticos para a saúde e bem-estar de crianças e adolescentes. Globalmente, há uma crescente preocupação com a diminuição dos níveis de AF e o aumento dos estilos de vida sedentários entre os jovens, levando a riscos para a saúde como obesidade, doenças cardiovasculares e problemas de saúde mental. O objetivo deste estudo foi analisar os n...
Comparison of the Active Drag and Passive Drag Coefficients at the same Swimmin...
Lopes, Tiago J.; Pinto, Mafalda P.; Oliveira, João P.; Marinho, D.A.; Morais, J.E.; Sampaio, TatianaStudies about drag in swimming usually report or put the focus on its absolute value. However, it is being claimed that the drag coefficient better represents the hydrodynamic profile of a swimmer. Drag is strongly dependent on speed. Thus, increases in speed will lead to increases in drag. This could lead to misleading interpretations since drag is the water resistance that makes the swimmers’ displacement dif...
Characterization of physical performance and change of direction deficit across...
Oliveira, João P.; Marinho, D.A.; Jacinto, Pedro; Sampaio, Tatiana; Morais, J.E.Background Volleyball performance relies heavily on agility, strength, and the ability to change direction, yet there is limited research investigating these physical attributes across different age groups in youth volleyball players. The change of direction (COD) deficit—a metric that isolates directional efficiency by comparing agility to linear speed— may provide a more nuanced understanding of an athlete’s ...
The Associations Between the Swimming Speed, Anthropometrics, Kinematics, and K...
Pinto, Mafalda P.; Neiva, Henrique P.; Sampaio, Tatiana; Oliveira, João P.; Marinho, D.A.; Barbosa, Tiago M.; Morais, J.E.There is scarce information about what characterizes the swimming speed in the butterfly stroke and the role of thrust in its characterization and prediction. The aim of this study was to compare the fastest and poorest butterfly swimmers based on a set of anthropometric, kinematic, and kinetic variables and to identify the swimming speed predictors. Eight young male swimmers were divided into two equal groups ...
Race analysis in swimming: understanding the evolution of publications, citatio...
Morais, J.E.; Barbosa, Tiago M.; Arellano, Raúl; Silva, A.J.; Sampaio, Tatiana; Oliveira, João P.; Marinho, D.A.The aim of this study was to conduct a scoping and bibliometric review of swimming articles related to race analysis. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were used to identify relevant studies. Articles on race analysis in swimming published between 1984 and December 31, 2023 were retrieved from the Web of Science database. 366 records were screened and a t...
StepTest4all: Improving the Prediction of Cardiovascular Capacity Assessment in...
Sampaio, TatianaCardiovascular capacity, expressed as maximal oxygen uptake (VO2max), is a strong predictor of health and fitness and is considered a key measure of physiological function in the healthy adult population. Objective: The aims of this study were to conduct a comprehensive bibliometric review of the literature on step tests and investigate the influence of the physical activity level (PAlevel) of participants in t...