evaluation of urinary ggt in elite male karate athletes pre & post exercise

background and aims: post exercise proteinuria and increased urinary gamma-glutamyl transferase (ggt) levels can be indicative of exercise-induced renal damage. the aim of this investigation was to study the effect of one session of intensive training on renal tubular injury markers and compare their values to those 6 hours after training, for evaluating tubular damage after intensive training. materials and methods: in this cross-sectional study with pre- and post- test design, 10 elite volunteer male athletes were selected and participated in one training session (2 hours). urine samples were collected before training, one hour after training, and 6 hours after training. urinary protein, creatinine, and ggt values were measured through laboratory methods and then pr/cr and ggt/cr ratios were computed. results: there weresignificant differences between values of protein, urine pr/cr ratio, ggt and creatinine in the three sampling phases (p