Protein
Experience From - Dr. Bill Miser , Karl King ,
Dr. Bill Miser
Lately, I have received several questions related to protein, plus some excellent comments from the IUS-L on (1) "Fuel Selection", (2) the 40-30-30 diet, and (3) how to achieve optimal protein nutrition balance for energy demands during prolonged endurance activities. Perhaps this somewhat longer treatise(xp) will summarize some of my principle answers for the kind of dietary application that may result in optimal performance, especially in the area of specific dietary protein protocols. The correct exact use for dietary protein to support prolonged endurance activity is widely debated among sportscientists. What follows is my opinion based on published research and observations/measurements I have recorded.
Mistakes can be made with dietary intake of carbohydrates and fat, but the margin for error is typically less for PROTEIN since it is the basis for all body structures and functions. Radioisotope techniques have confirmed that 98% of every cell in the body is replaced within 1 year's time! In any 6 months time period, all muscle cells, all blood cells, all enzymes, and all gene cells are completely replaced. Over half the dry weight of the human body is protein. Skeletal muscles are 65% protein, hemoglobin is 20% protein, and brain cells are 10% protein. Muscle mitochondria, where ATP/CP metabolizes energy for movement in time and space, over 2000 enzymes made up of globular proteins spark the biochemistry of performance. The solid structures of the body such as skin, nails, bone, hair, ligaments, and tendons are made from the structural class of proteins. If the balance of dietary protein is tipped toward too much or too little, either way, the results are devastating to both training and performance. How do I know if my dietary intake is either insufficient or too much?
SYMPTOMS WHEN DIETARY PROTEIN IS INSUFFICIENT
1.Muscle Mass will deteriorate resulting in weight loss or girth size loss. 2.Premature fatigue occurs during endurance training. 3.Heart rate will be high during interval training. 4.Lack of motivation to train will prevail before workouts involving intensity of effort.
SYMPTOMS WHEN DIETARY PROTEIN IS TOO MUCH
1.Excess Amino Acids are converted to toxic tissue ammonia, which is then deaminated to form urea. 2.Urea is excreted by way of kidneys and sweat glands. 3.Excess Urea in kidneys will cause low back pain.
