By Schtscherbyna, A., Soares, E.A., Oliveira, F.P., and Ribeiro, B.G. (2009). Nutrition Feb 19.
This prevalence study uses a cross-sectional analysis to assess the prevalence of the female athlete triad in adolescent elite women swimmers. The sample includes 78 female elite swimmers in the age range of 11-19 years from Rio de Janeiro, Brazil. The study examines the presence of disordered eating, menstrual dysfunctions, and bone dysfunctions as components of the Female Athlete Triad syndrome (referred to as the Triad). Disordered eating was examined using three questionnaires (Eating Attitudes Test, Bulimic Investigatory Test Edinburgh, and Body Shape Questionnaire). Menstrual dysfunction was measured using a validated questionnaire. Bone dysfunction was examined using an assessment of bone mineral density (BMD) by applying the method of dual-energy X-ray absorptiometry (DXA). Statistical analyses included a t test comparing the means; a chi-square test evaluating the association among categorical variable (P<0.05); Pearson’s coefficients of simple linear correlation between the variables of lean body mass and BMD at the spine (L1-L4) and overall in the body; and Kaplan-Meier survival curves estimating mean menarche age. The mean age at menarche of the athletes was 12.38±0.2 y. The presence of disordered eating, menstrual dysfunction, and low bone mass were found to be 44.9%, 19.2%, and 15.4% respectively in the group of swimmers. Among the athletes, 47.4% (37 of 78) met one criterion of the Triad, 15.4% (12 of 78) met two criteria, and 1.3% (1 of 78) met all three criteria, implying potential development of the Triad. Only 35.9% (28 of 78) of the athletes did not present with any of the components associated with the Triad. The prevalence of the Triad in this study population was low. However, the presence of one or two components of the Triad, especially disordered eating, was observed in the athletes and was described as demonstrating the incidence of partial status in these adolescent elite women swimmers. The present study underscores the importance of monitoring these components and their causes in order to generate preventative measures that will reverse or avoid the development of the Triad thus improving the health of the athletes.