Changes in urinary pH following bicarbonate loading.

TLDR: Urinary pH was significantly increased in the B condition and data indicate that urinary pH may be a suitable parameter for detection of bicarbonate doping.

Abstract: The purpose of this study was to determine the effect of bicarbonate doping on urinary pH following intense exercise Sixty-five university students (14 female, 51 male) were tested in a double-blind fashion on two separate occasions one week apart In random order each subject received a 500 mL bottle containing water, flavour crystals, plus either placebo (P) or sodium bicarbonate (B) in a dosage of 03 gm/kg body weight One hour later following an 800 m run a urine specimen was obtained and analyzed in duplicate on a Corning pH meter Urinary pH was significantly increased in the B condition (P = 617 +/- 06; B = 761 +/- 04; p less than 001) There was no difference between the response of the males (B = 759 +/- 03; P = 614 +/- 06) and females (B = 767 +/- 04; p = 629 +/- 06) The times for the 800 m run were B = 235 +/- 22 s; P = 236 +/- 15 s; p greater than 005 These data indicate that urinary pH may be a suitable parameter for detection of bicarbonate doping