3rd TAGRA

Creatine is one of the most popular supplements for enhancing muscular performance; however, the combined effect of creatine with resistance training on structural muscle changes has been less investigated. This study aimed to examine the effect of 8 weeks of resistance training and creatine supplementation on quadriceps muscle cross-sectional area (CSA) and jump power. Sixty male subjects aged 20–30 years were randomly assigned to 4 groups of 15: control, training, supplement, and training+supplement. The training program consisted of 3 sessions per week at 70–85% 1RM. The supplement group received 5 g of creatine monohydrate daily. Muscle CSA was measured by ultrasound, and jump power was assessed using the Sargent jump test. The training+supplement group is expected to show the greatest increase in muscle CSA and jump height, due to the synergistic effect of creatine on protein synthesis and phosphocreatine storage. Combining resistance training with creatine supplementation may lead to improvements in both the anatomical structure and physiological function of muscle