Evolution of the parameters associated to renal function after a basketball game in the sub-Saharan African environment

摘要

Objective. -This experimental study aims at analyzing the parameters associated with the renal function before and after a basketball game, in female players of the elite division of Benin. Methods. - Blood and urine samples were drawn from antecubital veinus in 16 players of two teams from Porto-Novo, at rest, at the end, one hour and 24 hours after a basketball game, in order to determine the absolute glomerular filtration rate (GFR) and that reported to the standard of body surface area (GFRc), the urinary sodium/potassium ratio (Na/K), serum albumin and the haemoglobin concentrations. Results. - At rest, all the winners and losers presented abnormal decreased values of GFRc, while 13 of them (81.25%) are weakened, with a mean haemoglobin concentration of 10.57+-0.22g/100mL. At the end of the game, GFRc decreased significantly in the winners (-27.32%, p = 0.046) and the losers (-35.45%, p = 0.020). During the following 24hours, the GFRc gradually increased in the winners, up to a value that is significantly higher than that of the rest (+11.75%, p = 0.02). Only the Na/K ratio registered 24hours after the game in the winners, is significantly higher (p < 0.001) than preceding measures. Conclusion. -A basketball game, played in the hot and wet environment of Porto-Novo (Benin Republic), induced a decrease of GFRc, suggesting a transitory failure of the renal function in these weakened girls at rest.