[Physiopathology of fin swimming. II. Clinical data].

The Authors have carried out a comparative clinical study on the effects caused by the use of several types of fins: with short and soft propeller, long fiber propeller and monofin. The results achieved demonstrate that the use of short fins does not cause any pathogenic effect, while the incidence of inflammatory tendon injuries and of sciatica is remarkable in those persons who employ the other types of fins. Therefore the Authors believe that the use of long and rigid fins or of monofin must be interdict to young people at the age of development in order to avoid the establishment of permanent body's injuries.