摘要:Masters swimming movement, involving adults swimming as a hobby, his practice is focused in three main areas: maintenance, recreational activity and competitive activity. Competitive activity is governed internationally by FINA (International Federation of Natation) and LEN (Ligue Europeenne of Natation). These competitions are competing in the age of 5 years from the age of 25 years, the last age group competition including all the competitors with age over 100 years. In this study we analyze the reduction of swimming speed in relation to age, in freestyle men events.