P0743COMPARISON OF PROTEINURIA LEVELS BETWEEN PROFESSIONAL AND RECREATIONAL CROSSFIT ATHLETES

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Abstract Background and Aims High intensive sports athletes are under risk of muscular injuries and likely renal damage secondary to it. As CrossFit is becoming more popular in last years, few consistent studies are available evaluating renal damage associated to this sport. The purpose of this study was to compare proteinuria levels between recreational and professional CrossFit athletes who were under training for a local competition. Method These athletes were invited to answer a survey. After this step, they were submitted to proteinuria analysis through urine dipstick reading. They also were divided into two groups (professional X recreational athletes) and the results were compared using chi-square test. Results A total of 99 athletes have concluded all the steps of the study. Among professional athletes, age average was 34.1 +3.9 year old, body mass index (BMI) 27.14 + 3.14 kg/m2 while in the recreational group the age average was 28.7 + 5.9 and BMI 26.49 + 4.56 kg/m2. Comparing proteinuria analysis, 44.4% of professional group have shown levels between 300 and 1000mg/dL and 14.8% have reached levels above 1000mg/dL, while only 2.8% among recreational ones have reached levels above 300mg/dL (p=0.001) with no one in this groups showing levels > 1000mg/dL. Conclusion This study has shown high proteinuria levels among professional CrossFit athletes comparing to recreational ones. As the literature is scarce in showing long-term kidney damage among CrossFit athletes, epidemiological studies warn about likely kidney damage related to this practice, a fact that can suggest better medical follow-up for CrossFit athletes.

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