%0 Journal Article
%T The Effect of Supplement on the Performing Special Skill Test
%A Fatemeh Sahranavard
%A Zahra Hojati
%J specialty journal of medical research and health science
%@ 2521-3172
%D 2019
%V 4
%N 4
%P 1-7
%X Introduction: it is important for athletes to use sports drinks to help them reach their ‎maximum capability in performing an important issue. The aim of this research was ‎to evaluate the effect of the combination of caffeine and sodium bicarbonate on ‎performing special skill tests, blood lactate and heart rate indices in elite Karate ‎athletes of Iran. Methodology: This quasi-experimental study was carried out on 8 elite karate ‎athletes in Iran (with a mean age of 21.5 ± 0.5 years). The subjects were divided ‎randomly into three groups with a double-blinded model in three separate days. One ‎group received neither supplement nor placebo on the first day, another group ‎received sodium bicarbonate supplement and caffeine on the second day, and the ‎other group received placebo on the third day. SPSS 21 software was used to analyze ‎the data.‎ Results: The results of this research revealed that after drinking caffeine and sodium ‎bicarbonate, there was a significant increase in performing special skill test in karate ‎‎(p = 0.001). The results also showed that the values of lactate, blood pressure and ‎heart rate increased significantly in each stage of the pretest, immediately after the ‎test and in the period of returning to the initial state (p 
%U https://sciarena.com/article/the-effect-of-supplement-on-the-performing-special-skill-test