PROTEIN – POWERHOUSEThe The importance of protein – and if the extra protein is necessary for athletic performance is one of the most debated topics among sports scientists, coaches and athletes and has consistently maintained since the time of the ancient Greeks. Proteins has been associated with power and strength, and as the main component of muscles, but it seems logical that a higher protein intake will increase muscle size and strength.Traditionally, scientists have found that athletes do not have to consume more than RDA for protein and that consumption of little more than this amount would produce no additional benefit. However, research since the 1980s has doubts about this view. There is considerable evidence that the protein needs of active people are always higher than the general population.This chapter helps you understand better the role of the protein during exercise, and you can calculate how much you need. It shows how the individual depending on the needs of the sport and training and how they relate to carbohydrate intake. An example of a daily menu is given to show how their protein needs and provide a basis for developing their own menu. As more athletes are choosing meat and a vegetarian diet, this chapter explains how you enough protein and other nutrients for maximum performance in a protein-free meat diet.WHY NEED? The protein can get is part of the structure of all cells and tissues in the body including muscles, internal organs, tendons, skin, hair and nails. Average is 20% of their total body weight. Protein is necessary for growth and new tissue formation, tissue repair and for regulating many metabolic pathways, and can also be used as fuel for energy production. It is also necessary for nearly all the enzymes and hormones various body parts (such as adrenaline and insulin) and neurotransmitters. The proteins have a role in maintaining an optimum balance of moisture in the tissues, transport nutrients and oxygen to cells and regulate blood amino acids are clotting.What? The 20 amino acids are the building blocks of proteins. Can be combined in various ways to form hundreds of different proteins in the body. When you eat protein, are divided in their digestive tracts into smaller units, molecular – some amino acids and dipeptides (two amino acids linked together). Twelve of the amino acids can be made in the body from other amino acids, carbohydrates and nitrogen. These are called redundant or nonessential amino acids (DAAS). The other eight are called essential or essential amino acids (IAAS) means that must be supplied in the diet. All 20 amino acids are shown in Table 3.1. Branched-chain amino acids (BCAAs) comprise the three IAAS with a branched molecular configuration: valine, leucine and isoleucine. They constitute one third of the muscle protein and is a substrate for two other essential amino acids, glutamine and alanine, which is released in large quantities during intense aerobic exercise. They can also be used as fuel for muscles, especially when muscle glycogen is depleted. Strictly speaking, the body's need for amino acids instead of protein.These then assembled into new proteins with hundreds or even thousands of amino acids linked together.What protein species are there? There are four types of proteins often used as protein supplements.1.whey 2.casein protein 3.soy protein 4.egg protein proteinWhey is one of the two main types of proteins found in milk (casein is the other). It forms when milk is coagulated (as in cheese making), separating the curds (mainly casein) whey (lactalbumin as protein, lactose and fat). Casein is the protein in milk of other important. It is actually the curds produced when milk is separated into curds and whey. Low-fat cottage cheese is mostly casein protein, along with some lactose and proteins extracted from calcium.Soy proteins soybeans.Egg refers to proteins in whole protein egg.Protein metabolismTissue continually broken down (catabolized ), the launch of its component amino acids in the pool, which is found in body tissues and blood. For example, half of the proteins of the body divide and replaced every 150 days. Amino acids absorbed from food (IAAS) and redundant amino acids (DAAS) made in the body of nitrogen and carbohydrates can raise is also free. Once in the pool, four of the target amino acids. They can be used for