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Is the underwater gliding test a valid procedure to estimate the swimmers’ drag?

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...

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...

The influence of anthropometric, kinematic and energetic variables and gender o...

The aim of this study was to assess the: (i) gender; (ii) performance and; (iii) gender versus performance interactions in young swimmers’ anthropometric, kinematic and energetic variables. One hundred and thirty six young swimmers (62 boys: 12.76 ± 0.72 years old at Tanner stages 1-2 by self-evaluation; and 64 girls: 11.89 ± 0.93 years old at Tanner stages 1-2 by self-evaluation) were evaluated. Performance, a...

Biomechanics and energetics as determinant factors of competitive swimming perf...

Relationships between kinematics and neuromuscular parameters in breaststroke

Analysis of the determinant kinematical parameters for performance in the 200-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...

Tarefas alternativas para o ensino e aperfeiçoamento das técnicas simultâneas d...

As tarefas “clássicas” de ensino das técnicas da Natação Pura Desportiva tendem a criar uma sobrecarga sobre algumas estruturas do aparelho locomotor, monotonia nas sessões, bem como, induzir uma menor plasticidade e riqueza no domínio motriz ou do controlo motor. Daí ser vulgar propor-se aos alunos tarefas de ensino diferenciadas, “alternativas”. As técnicas de nado de Bruços e de Mariposa são tidas como das m...

13th FINA World Championship finals: stroke kinematical and race times accordin...

The aim of this work was to compare the stroke kinematics and race times of the freestyle final races at the 13th FINA World Championships between: (i) the three medalists versus the last three finalists; (ii) males versus female swimmers; (iii) all events in each gender. Data was collected from the champioships official web site. There were no significant differences in the stroke kinematics neither in the rac...

The relationship between front crawl performance and hydrodynamics in young fem...

13th FINA World Championship finals: stroke kinematical and race times accordin...

The aim of this work was to compare the stroke kinematics and race times of the freestyle final races at the 13th FINA World Championships between: (i) the three medalists versus the last three finalists; (ii) males versus female swimmers; (iii) all events in each gender. Data was collected from the champioships official web site. There were no significant differences in the stroke kinematics neither in the rac...