authors Barbosa TM Morais, Jorge Filipe Estrela Costa MJ Morouço, P. Moreira, M Garrido ND Daniel A Marinho Antonio J. Silva
keywords Active drag Adolescent Biomechanical Phenomena Child Children Competitive Behavior Female Front crawl Humans Hydrodynamics Kinematics Male Passive drag Photogrammetry Physical Exertion Sex Characteristics Swimming