Banca de DEFESA: ROGERIO JOSE FREIRE BARROS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ROGERIO JOSE FREIRE BARROS
DATE: 06/02/2024
TIME: 09:30
LOCAL: Mine auditório Úlpio de Miranda, Fanut
TITLE:

IMMEDIATE EFFECT AND 1 HOUR AFTER RINSE OF CAFFEINE ALONE OR COMBINED WITH INGESTION ON MAXIMUM STRENGTH PERFORMANCE AND MUSCLE POWER IN INDIVIDUALS WITH DIFFERENT GENOTYPES FOR CYP1A2

KEY WORDS:

Rinsing, Ingestion, Caffeine, CYP1A2, Maximum Strength and Muscle Power.

PAGES: 60
BIG AREA: Ciências da Saúde
AREA: Nutrição
SUMMARY:

The ergogenic effects caused by the use of caffeine supplementation in low-intensity exercise are already widely accepted. However, there is still no consensus on its real effect on high-intensity exercise. The objective of the present study was to investigate the immediate effects and 1 hour after rinsing caffeine alone or combined with ingestion on the performance of maximal strength and muscular power in individuals with different genotypes for CYP1A2. The research was carried out with a sample of seventeen male participants, trained and without injuries, who had previously undergone an analysis of the genetic polymorphism for CYP1A2.The research had a randomized, double-blind and counterbalanced design. Participants were subjected to five conditions of ingestion and/or rinsing of caffeine or placebo solutions: 1) tests immediately after (BOC CAF PRE) and 1 hour after rinsing the caffeine (BOC CAF POST); 2) carrying out tests immediately after (BOC PLA PRE) and 1 hour after the placebo rinse (BOC PLA POST); 3) carrying out tests immediately after (BOC + ING CAF PRE) and 1 hour after the combination of rinsing and caffeine ingestion (BOC + ING CAF POST); 4) carrying out tests immediately after (BOC + ING PLA PRE) and 1 hour after the combination of rinsing and placebo ingestion (BOC + ING PLA POST); 5) carrying out tests immediately (PRE CONTROL) and 1 hour later, without the use of caffeine or placebo (POST CONTROL). Participants were instructed, depending on the condition, to rinse their mouth (25 mL) for 10 seconds, followed by ingesting a solution containing CAF (1.2% - equivalent to 300 mg) or PLA (bitter) composed of a solution of Magnesium chloride at a concentration of 33g/l (3.3%). At each visit, participants performed muscle power tests (vertical jump with countermovement and without countermovement) and muscle strength tests (maximum voluntary contraction and hand grip). The results obtained showed that the strategy of using CAF mouthwash alone or combined with ingestion did not result in an improvement in potency and/or muscle strength. Furthermore, the genetic factor was not relevant to the results presented, since the genetic polymorphism of CYP1A2 did not interfere with performance. The conclusion of this study was that the use of mouthwash (25 mL) with CAF (1.2% - equivalent to 300 mg), combined or not with ingestion, was not effective in improving performance in anaerobic type exercises, either immediately or 1 hour after using the strategy. Furthermore, genetic polymorphisms for CYP1A2 were not relevant to the possible ergogenic effects of CAF.

COMMITTEE MEMBERS:
Externo(a) ao Programa - 3138872 - FILIPE ANTONIO DE BARROS SOUSA - nullPresidente - 1878467 - GUSTAVO GOMES DE ARAUJO
Interno(a) - 1311365 - THAYS DE ATAIDE E SILVA