WHAT IS PUMP CORE ENERGIZER? Fitness Authority Pump Core Energizer is a supplement pre-training, which increases aerobic capacity athletes endurance and improves the "energy and dynamism" effort strength. Using Pump Core Energizer can expect a rapid feeling of "muscle pump", which indirectly affects the growth of strength and endurance muscle. The presence of beta-alanine, BCAA, citrulline malate, Caffeine, will make your workouts will be an experience that you will want to repeat 4-5 times week. The effect of the so-called. "muscle pump" in the Fitness Authority pump Core Energizer achieved by the special composition of active substances which are precursors in the production of nitric oxide. Nitric oxide is an important signaling molecule cells, taking part in many physiological and pathogenic processes of the body. Nitric oxide is a potent vazodilator that affects the relaxation of vascular endothelial with the consequent need to expand the cross-section of all blood vessels, especially arteries. Wider artery can transport more blood and nutrients to the working muscles. The arterial blood has required oxygen to the muscle and provides nutrients, such as amino acids, sugars, creatine, arginine from the outside. Thanks to the action of nitric oxide constitutional transport is more efficient so that not only the cells receive nutrients but quickly removed from harmful products of metabolism.