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Contributos da biomecânica para o estudo do rendimento desportivo em natação

Novas aplicações de tecnologia computacional e biomecânica ao desenvolvimento d...

A Biomecânica constitui um dos domínios das Ciências do Desporto onde o desenvolvimento tecnológico se tem revelado mais exuberante, nomeada e especialmente a par dos desenvolvimentos operados na computação e nas novas tecnologias em geral. A natação, por seu lado, constitui a referência maior de entre as modalidades desportivas praticadas na água e, de entre estas, aquela onde, aparentemente, a investigação ci...

Analysis of renin-angiotensin-aldosterone system gene polymorphisms in resistan...

Essential hypertension is a disease multifactorially triggered by genetic and environmental factors. The contribution of genetic polymorphisms of the renin-angiotensin-aldosterone system and clinical risk factors to the development of resistant hypertension was evaluated in 90 hypertensive patients and in 115 normotensive controls living in Southwestern Brazil. Genotyping for insertion/deletion of angiotensin-c...

Time limit at the minimum velocity of VO2max and intracyclic variation of the v...

The purpose of this study was to analyse the relationship between time limit at the minimum velocity that elicits maximal oxygen consumption (TLim-vVO2max) and intra-cyclic variations of the velocity of the centre of mass (dv) in the four competitive swimming techniques. Twelve elite male swimmers SWIMMING BIOENERGETICS Rev Port Cien Desp 190 6(Supl.2) 185–197 swam their own best technique until exhaustion at t...

Validation of a cable speedometer for butterfly evaluation

Getting fast results from the evaluation of swimmers is one of the most important goals to achieve with technological development in the field. The purpose of this study was to validate a real-time velocimetric device (speedometer) through the comparison of their results with computer assisted videogrametry. The sample included 7 international level swimmers (3 females and 4 males). Each swimmer performed four ...

A kinematical, imagiological and acoustical biofeedback system for the technica...

A system for real time velocimetric feedback, and for immediate disposal of kinematica data, and model, synchronized with dual-media video images, will be presented.

Relationship between energy cost, swimming velocity, speed fluctuation in compe...

The purpose of this study was to analyse the relationships between the total energy expenditure ( tot), the energy cost (EC), the intra-cycle variation of the horizontal velocity of displacement of centre of mass (dv) and the mean swimming velocity (v) in the four competitive swimming strokes.

Relationships between energy cost, swimming velocity and speed fluctuation in e...

The purpose of this study was to analyse the relationships between the total energy expenditure (tot), the energy cost (EC), the intra-cycle variation of the horizontal velocity of displacement of centre of mass (dv) and the mean swimming velocity (v) in elite butterfliers.

Energy cost and intra-cyclic variation of the velocity of the centre of mass in...

The purpose of the present study was to analyse the relationship between energy cost (C) and intra-cyclic speed fluctuations(dv) in breaststroke.

Acute effects of the use of a biofeedback system for the technical training in ...

The purpose of this research was to develop, validate, and evaluate a biofeedback system for the technical training in breaststroke swimming. The system lied on the assessment of speed fluctuation curves of an anatomical landmark of the swimmer(hip).