EFFECT OF PROPHYLACTIC ADMINISTRATION OF IBUPROFEN IN LONG-DISTANCE SWIMMERS ENDURANCE PERFORMANCE ON TESTS OF 1500 METERS

Abstract

The Nonsteroidal anti-inflammatory drugs (NSAIDs) has been used and abused without medical prescription by non-athletes and athletes of many different modalities. The main reason of this research was to verify the usage of prophylactic ibuprofen under the performance  of Long-Distance Swimmers. In 25 meter pool, 9 male swimmers ( 17,7 ± 2,6 years of age, 74,3 ± 5,3 Kilograms, 180,2 ± 7,5 cm, 6,4 ± 2,6 % of body fat and 6,3 ± 2,1 years of training), did two tests, whereas the maximum distance allowed was 1500 meters containing a seven days break between them, one hour after the oral administration of 1,2 gr of Ibuprofen or placebo ( clinical trial, randomized, double-blind)  Then standarized as a training and nutrition prior to the tests. The total amount of time in each situation was recorded,  the blood lactate concentration was measured 1 minute before and after exercise post-exercise, as well as the partial speed in every 50 meters reached, length and frequency of stroke. Student T Test was used to make a statistical comparison based on the SPSS 15.0. The significancy level adopted was the p<-0.05. The significant difference  ( p=0,02) was verified both in the total time of the 2 situations ( 1500pla = 19 min10 seg ±50 sec and 1500 lbu = 18 min48sec ± 40 sec) as in the lactate concentration ( pla= 5,1 ± 2,2 e lbu = 6,3 ± 2,2. p= 0,04). No significant difference was observed between the variables of biomechanical swim. Starting from the total proof time and the lactate concentration superior in the Ibuprofen situation, we consider the possibility of Ergogenic Effects from the analgesic effects of the concerned pharmaco.