103. Fitness Assessment, Exercise Training, and Performance of Athletes and Healthy People - sport science Scientific Abstract

3825 - Analysis Of The Use Of Sodium Bicarbonate In Performance Of Surfing Athletes

Abstract

PURPOSE: Surf is a sport that presents variations of intensity and duration during its practice. Therefore, strategies that contribute to muscle buffering in periods of high intensity, may be efficient to improve the performance of practitioners of this modality. Objective: To evaluate the efficiency of sodium bicarbonate in the performance of surfing athletes.
METHODS: Twenty surfers with an average age of 18 years were submitted to a sodium bicarbonate solution (0.5mg / kg) 40 minutes prior to the practice tests performed in the pool, alternating the same method, but with a solution containing chloride sodium and water (placebo), the other day, at random, in a cross over style. Upon arrival at the test site, the volunteers had blood lactate collected by a Roche® lactimeter pre and post practice and underwent a progressive paddling test on the pool on their own surfboard. They were instructed to shoot at a maximum speed of 20 meters to determine the time to be adhered as a basis for further testing. Subsequently, the athlete rested for 2 minutes and was instructed to perform up to 20 shots from 20 meters at 80% of his maximum speed with an interval of 100% of the time taken in the shot. The test was interrupted when the subject increased by 2 seconds of the maximum time performed, two consecutive times, or when completed the 20 idealized shots of the test. At the end of each test, blood samples were collected for lactate concentration analysis.
RESULTS: See table 1.
EvaluationBicarbonatePlaceboP value
Lactate16,43±3,114,83±2,70,04
Maximum time10,68±0,810,88±0,60,05
Shots16,35±5,216,35±5,2

Table 1: Description, by the Student's t-test, of mean and standard deviation of lactate values; maximum time; and number of shots in relation of the use of bicarbonate and sodium chloride (placebo). The accepted significance level was p≤0.05.CONCLUSIONS: The administration of sodium bicarbonate positively impacted the performance of the surfer athletes, leading to a maximum paddle test time improvement and an increase of the blood lactate.
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