Inclusion Criteria:  High-level swimmers and para-swimmers on ministerial lists Current license to participate in national and international competitions Over 12 and under 50 years old Signed consent form Willingness to participate / cooperate  Exclusion Criteria:  Absence of authorization from legal guardians for the minor athlete at the time of inclusion in the study. For disabled athletes: non-union fracture, pressure sore stage 2 or more, infection (CRP > 5, body temperature > 38°C), non-union musculo-tendinous lesion at the time of inclusion. Hemophilia, coagulation disorders Regular medication intake that may influence the data Any metabolic or hormonal disorder. Contraindications to competitive swimming Any other condition that the investigating physician considers may pose an individual risk or interfere with the evaluation of the data.