Encontrados 16 documentos, a visualizar página 1 de 2
Hydrodynamic profile of young swimmers: changes over a competitive season
Barbosa, Tiago M.; Morais, J.E.; Marques, M.C.; Silva, A.J.; Marinho, D.A.; Kee, Y.H.The aim of this study was to analyze the changes in the hydrodynamic profile of young swimmers over a competitive season and to compare the variations according to a well-designed training periodization. Twenty-five swimmers (13 boys and 12 girls) were evaluated in (a) October (M1); (b) March (M2); and (c) June (M3). Inertial and anthropometrical measures included body mass, swimmer’s added water mass, height, an...
Is the underwater gliding test a valid procedure to estimate the swimmers’ drag?
Morais, J.E.; Costa, M.J.; Jesus, S.; Mejias, J.E.; Moreira, M.; Garrido, N.; Silva, A.J.; Marinho, D.A.; Barbosa, Tiago M.The aim of this study was to develop a structural equation model for underwater gliding distance based on its determinant variables, in order to confirm whether it is an informative test of young swimmers’ hydrodynamic profile. Methods: Twenty-three subjects (twelve boys and eleven girls with a mean age of 13.61 ± 0.83 years old) were evaluated. The following were determined: (i) the underwater gliding distance...
Characterization of speed fluctuation and drag force in young swimmers: a gende...
Barbosa, Tiago M.; Costa, M.J.; Morais, J.E.; Morouço, P.; Moreira, M.; Garrido, N.; Marinho, D.A.; Silva, A.J.The aim of this study was to compare the speed fluctuation and the drag force in young swimmers between genders. Twenty-three young pubertal swimmers (12 boys and 11 girls) volunteered as subjects. Speed fluctuation was measured using a kinematical mechanical method (i.e., speedo-meter) during a maximal 25-m front crawl bout. Active drag, active drag coefficient and power needed to overcome drag were measured w...
Is underwater gliding test a valid procedure to estimate the swimmer's drag?
Morais, J.E.; Jesus, S.; Mejias, J.E.; Silva, A.J.; Marinho, D.A.; Barbosa, Tiago M.
Estimating the trunk transverse surface area to assess swimmer's drag force bas...
Barbosa, Tiago M.; Morais, J.E.; Costa, M.J.; Mejias, J.E.; Marinho, D.A.; Silva, A.J.The aim of this study was to compute and validate trunk transverse surface area (TTSA) estimation equations to be used assessing the swimmer’s drag force according to competitive level by gender. One group of 130 swimmers (54 females and 76 males) was used to compute the TTSA estimation equations and another group of 132 swimmers (56 females and 76 males) were used for its validations. Swimmers were photographe...
How informative are the vertical buoyancy and the prone gliding tests to assess...
Barbosa, Tiago M.; Costa, M.J.; Morais, J.E.; Moreira, M.; Silva, A.J.; Marinho, D.A.The aim of this research was to develop a path-flow analysis model to highlight the relationships between buoyancy and prone gliding tests and some selected anthropometrical and biomechanical variables. Thirty-eight young male swimmers (12.97 ± 1.05 years old) with several competitive levels were evaluated. It were assessed the body mass, height, fat mass, body surface area, vertical buoyancy, prone gliding aft...
Validation of an integrated system to assess horizontal intra-cyclic velocity w...
Barbosa, Tiago M.; Costa, M.J.; Morais, J.E.; Jesus, S.; Silva, A.J.; Batista, José; Gonçalves, J.
Validation of an integrated system to assess horizontal intra-cyclic velocity w...
Barbosa, Tiago M.; Costa, M.J.; Morais, J.E.; Jesus, S.; Silva, A.J.; Batista, José; Gonçalves, J.The aim of this paper was to: validate an integrated system (i.e., software application and hardware after calibration) to assess human’s horizontal intra-cyclic velocity with a mechanical speedo-meter.
Validation of an integrated system to assess horizontal intra-cyclic velocity w...
Barbosa, Tiago M.; Costa, M.J.; Morais, J.E.; Jesus, S.; Silva, A.J.; Batista, José; Gonçalves, J.
Morphometric study for estimation and validation of trunk transverse surface ar...
Morais, J.E.; Costa, M.J.; Mejias, E.J.; Marinho, D.A.; Silva, A.J.; Barbosa, Tiago M.The aim of this study was to compute and validate estimation equations for the trunk transverse surface area (TTSA) to be used in assessing the swimmer's drag force in both genders. One group of 133 swimmers (56 females, 77 males) was used to compute the estimation equations and another group of 131 swimmers (56 females, 75 males) was used for its validations. Swimmers were photographed in the transverse plane ...
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