Kura BCAA Force
Branch Chain Amino Acids
There has been a lot of research over the years performed on the metabolism, muscle growth and use of Branched Chain Amino Acids (BCAAs) L-Leucine, L-Isoleucine and L-Valine to regulate them. BCAAs make up a considerable portion of muscle tissue, and are 'essential' amino acids because the body cannot make them itself; they have to be taken in as a food, converted to, or taken in a supplemental format. There are many applications for these amino acids; they have even been used in hospitals to help patients recover from post surgical trauma. Athletes from all over the world have also come to depend on the ability of BCAAs to help prevent the muscle wasting that is known to be associated with the trauma that comes from heavy exercise. This is why they are so useful; they re-establish systemic balance and help to restore muscle tissue back to its super compensated pre-stress state.
Exercise and stress in general takes a big toll on the body over time. Working out is a stress that is far and above what the body is used to dealing with, and since in some circles BCAAs are known as the 'stress amino acids', they may help the body recuperate faster and maintain balance. When the body is under a lot of stress its need for protein goes up, and this has a direct effect on protein metabolism and the prevention of catabolism or what is more commonly known as muscle breakdown. So, it is necessary to take measures to prevent the breakdown of muscle to the point where the athlete becomes over trained, or the individual becomes over stressed and starts to develop pathological symptoms. The goal of athletes and the public in general is to be able to increase the body's adaptive capabilities, to grow get or stay healthy and to compensate for the stress. The tissue sparing capabilities of BCAAs is well documented, and if you have ever seen someone that is under a constant amount of stress, they will look emaciated and drawn. An advantage of taking BCAAs is to help prevent muscle wasting, and they do this because they are very rapidly absorbed during digestion and go directly to the muscle tissue where they are needed.
BCAAs have also been shown to increase the production of insulin, which increases the uptake of blood sugar and other amino acids, this also enhances protein synthesis and decreases recuperation times. And since BCAAs are metabolized differently than other amino acids, and are broken down in the muscle and not the liver; when stored sources of sugar are depleted in the muscle these amino acids are available to assist in a number of systemic reactions that are needed for energy and growth. All three BCAAs have to be available at the same time to ensure maximum utilization and should be taken on an empty stomach, due to the fact that they actively compete with other amino acids for uptake and utilization.
Blomstrand E, Ek S, Newsholme EA. Influence of ingesting a solution of
branched-chain amino acids on plasma and muscle concentrations of amino
acids during prolonged submaximal exercise. Nutrition 1996; 12:485-90.