Özet:

In this study, it was aimed at studying the effects of the dilated-chain amino acids (BCAAs) and creatin supplementation (KRs) on the body composition in footballers. The study included 24 volunteer footballers between the ages of 18 and 26. Footballers are randomly divided into three groups: BCAAs (n=8) - KR (n=8) and plasebo (PLA) (n=8). The trial groups were given 5000 mg BCAA and 2000 mg creatine supplements for 7 days according to the daily use and dosage under the researchers’ supervision. In the study, the placebo group was given the same amount and in the same way to the nutritional support given. The work is done as the only blind application. The analyses were performed in equal physical conditions with the daily life, nutrition and training programs of the participants using the pre-test-final test method, without interruption of 7 days. In terms of body weight and skeletal muscle weight, there were no statistically significant differences between the three groups (p>0,05). There is no significant difference in body fat mass and percentage values in any group (p>0,05). When the total body water, body mass index (BMI) and metabolism rate parameters were studied, statistical significance in groups was not identified (p>0,05). There is no statistical difference in protein and mineral levels (p>0,05). There was no statistically meaningful difference in the group comparisons of all data (p>0,05). The use of nutritional supplements in footballers is studied depending on their nutritional strategies. In this regard, the effect of BCAAs and creatine consumption has not been found on an ideal body composition, which is one of those that can show high sports performance in combination with the athlete’s health. Although positive or negative changes have been detected in some parameters, there are no significant differences in these results.