The introduction of the so called 'endocrine module' of the athlete's biological passport needs to consider the numerous reports showing the effect of ethanol ingestion on the steroid profile. A steroid profile would only be useful for longitudinal monitoring and statistical evaluation if it has not been altered by any uncontrolled circumstance, very particularly alcohol consumption.~There is an urgent need to study the perpetuation that alcohol ingestion causes to the individual steroid profile and if possible establish cut-off values for markers of ethanol ingestion granting that the steroid profile determined has not been affected by such ingestion.~Subjects will be genotyped for genetic deletion polymorphism in the uridine diphosphoglucuronosyltransferase family 2 member B17 gene (UGT2B17) related to testosterone glucuronidation regulation.~The objective of the clinical trial is to study the intra-individual variation of steroid profile parameters as a result of the ingestion of different doses of ethanol in Caucasian women (complementing previous studies performed in men).
The aim of the clinical trial is to study the intra-individual variation of steroid profile parameters after experimental administration of different doses of ethanol in Caucasian women.