ACTIVE DRAG AND PHYSICAL CHARACTERISTICS IN AGE GROUP SWIMMERS

  • Sônia C. Corrêa
  • Francisco Alves
  • Adelaide Botelho
  • Luís Rama
  • António Martins-Silva
Keywords: Active drag, front crawl, velocity perturbation method, wave drag

Abstract

The purpose of this study was to identify the influence of body size and morphology in active drag (Da) in front crawl swimming. Seventeen male national level swimmers (age: 15.42 ± 0.53 years, height: 178.52 ± 7.42 cm, body mass: 66.82 ± 7.45 kg) were selected from a large pool (350) of swimmers evaluated using the velocity perturbation method. Inclusion criterion was having achieved the same maximal velocity in the test (1.78 m.s-1). Hydrodynamic variables showed large variation and were correlated to body mass and height. Height corrected for the squared body mass showed a strong negative association with Da (-0.810). Swimmers of equivalent performance level have different active hydrodynamic profiles, according to body size and morphological characteristics.
Published
2007-12-12
Section
Coaching and Sports Activities