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100m and 200m front crawl performance prediction based on anthropometric and ph...
Reis, V.M.; Silva, A.J.; Carneiro, André Luiz; Marinho, D.A.; Novaes, G.; Barbosa, Tiago M.Background: The identification of the variables that are able to predict swimming performance is one of the main purposes of the “swimming science” community. Research question: The aims of the study were: (i) to compare the anthropometric and physiological profiles of 100m and 200m front crawl swimmers and; (ii) to identify anthropometric and physiological variables that account for the prediction of the swimm...
Analysis of the determinant kinematical parameters for performance in the 200-m...
Ferreira, I.F.; Silva, A.J.; Oliveira, Diogo Roberto de; Garrido, N.; Barbosa, Tiago M.; Marinho, D.A.; Reis, V.M.Os objetivos deste estudo foram: i) caracterizar o nado submáximo e máximo do ponto de vista cinemático; ii) verificar a influência das variáveis cinemáticas na prova máxima de 200 metros crawl. Nove nadadores de elite nacionais realizaram dois testes: um submáximo, descontínuo de intensidade progressiva; outro máximo, que consistiu em uma simulação de uma prova de 200 m crawl. Foram estudados os parâmetros cin...
Three-dimensional CFD analysis of the hand and forearm in swimming
Marinho, D.A.; Silva, A.J.; Reis, V.M.; Barbosa, Tiago M.; Vilas-Boas, J.P.; Alves, F.B.; Machado, L.; Rouboa, A.The purpose of this study was to analyze the hydrodynamic characteristics of a realistic model of an elite swimmer hand/forearm using three-dimensional computational fluid dynamics techniques. A three-dimensional domain was designed to simulate the fluid flow around a swimmer hand and forearm model in different orientations (0°, 45°, and 90° for the three axes Ox, Oy and Oz). The hand/forearm model was obtained...
Computational fluid dynamics applied to competitive swimming: the role of finge...
Marinho, D.A.; Barbosa, Tiago M.; Kjendlie, P.L.; Reis, V.M.; Vilas-Boas, J.P.; Machado, L.; Rouboa, A.; Silva, A.J.The best fingers’ relative position during the underwater path of the stroke cycle in swimming seems to be an unclear issue. Even in elite level swimmers, different relative positions of thumb and finger spreading can be observed. The aim of the current abstract was to present the hydrodynamic characteristics of a true model of a swimmer’s hand with different fingers’ positions using computational CFD.
Stability and prediction of 100-m breaststroke performance during elite swimmer...
Costa, M.J.; Marinho, D.A.; Reis, V.M.; Silva, A.J.; Bragada, José A.; Barbosa, Tiago M.Longitudinal performance assessment is important to help coaches defining realistic goals and training methods. The purpose of this study was to analyze the 100-m Breaststroke performance stability throughout the elite swimmer’s career, from children to adult age
Stability and prediction of 100-m breaststroke performance during the careers o...
Costa, M.J.; Marinho, D.A.; Reis, V.M.; Silva, A.J.; Bragada, José A.; Barbosa, Tiago M.The aim of this study was to track and analyze the 100-m Breaststroke performance stability throughout elite swimmer’s career. 35 Portuguese male top-50 were analyzed for seven consecutive seasons between 12 and 18 years old. Best performances were collected from ranking tables. Longitudinal assessment was performed based on two approaches: (i) mean stability was analyzed by descriptive statistics and ANOVA rep...
The evolution of swimming science research: Content analysis of the “Biomechani...
Barbosa, Tiago M.; Pinto, E.; Cruz, A.M.; Marinho, D.A.; Silva, A.J.; Reis, V.M.; Costa, M.J.; Queirós, Telma Maria GonçalvesThe aim of this study was to analyze the evolution of the swimming science research based on the content analysis of the “Biomechanics and Medicine in Swimming” Proceeding books series from 1971 to 2006. The content of all the 622 papers published in the Proceeding books of the Symposiums of Biomechanics and Medicine in Swimming were evaluated. Two main categories were defined: (i) The “Aquatic activity” studie...
Effects of musical cadence in the acute physiologic adaptations to head-out aqu...
Barbosa, Tiago M.; Sousa, V.; Silva, A.J.; Reis, V.M.; Marinho, D.A.; Bragada, José A.The purpose of this study was to analyze the relationships between musical cadence and the physiologic adaptations to basic head-out aquatic exercises. Fifteen young and clinically healthy women performed, immersed to the breast, a cardiovascular aquatic exercise called the ‘‘rocking horse.’’ The study design included an intermittent and progressive protocol starting at a 90 b min21 rhythm and increasing every ...
Swimming propulsion forces are enhanced by a small finger spread
Marinho, D.A.; Barbosa, Tiago M.; Reis, V.M.; Kjendlie, P.L.; Alves, F.B.; Vilas-Boas, J.P.; Machado, L.; Silva, A.J.; Rouboa, A.The main aim of this study was to investigate the effect of finger spread on the propulsive force production in swimming using computational fluid dynamics. Computer tomography scans of an Olympic swimmer hand were conducted. This procedure involved three models of the hand with differing finger spreads: fingers closed together (no spread), fingers with a small (0.32 cm) spread, and fingers with large (0.64 cm)...
Energetics and biomechanics as determining factors of swimming performance: upd...
Barbosa, Tiago M.; Bragada, José A.; Reis, V.M.; Marinho, D.A.; Carvalho, C.; Silva, A.J.The biophysical determinants related to swimming performance are one of the most attractive topics within swimming science. The aim of this paper was to do an update of the “state of art” about the interplay between performance, energetic and biomechanics in competitive swimming. Throughout the manuscript some recent highlights are described: (i) the relationship between swimmer’s segmental kinematics (segmenta...
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