Relationship of BMI with Proteinuria and Hematuria after One Session of Intense Continuous and Interval Exercise in Girls

Introduction: Obesity effects on kidney function. Urinary disorders after exercise are also common, and probably due to transient hemodynamic problems in the glomerular and tubular renal function. The purpose of this research is to investigate the relationship of BMI with proteinuria and hematuria after one session of intense continuous and interval exercise in girls. Methods: In this quasi-experimental research, 45 hostelry high school girl students with a mean age of 15.18 ± 0.39 years were randomly selected and in three groups of 15, they ran 1600 meters in a continuous and interval manner. Urine test collected before, one and 24 hours after activity. The results were analyzed by SPSS version 16 software and one way ANOVA and Pearson correlation coefficient. Results: Increased proteinuria was significant one hour (P = 0.002) and 24 hours after activity (P = 0.001) in the continuous group. In the continuous group, the relationship between fat percentage (P=0.017) and body mass index (P=0.001) with protein excretion 24 hours after activity was positive and significant. One hour after activity, protein excretion with fat percentage and Body mass index (BMI) had no significant relationship. Hematuria was also not significant after activity.  Conclusion: Body mass index (BMI) and fat percentage were effective on protein excretion after one session of intense physical activity and had no significant effect on hematuria. Therefore, overweight people were advised to participate in interval exercise to lose weight.