The objective of this scientific study was to determine whether the delayed onset of fatigue following carbohydrate consumption was associated with halting exhaustion of muscle glycogen. Therefore, this web page is dedicated to presenting the important points of the study and expanding those ideas to understand a more general function of carbohydrates in our daily activities. The basic design of the experiment consisted of a control group and an experimental group; both groups contained endurance-trained cyclists who had previously fasted. Cyclists were asked to maintain a constant aerobic workload of 70% while cycling. The control group was given a sweet drink which was not sufficient as an energy source; the drink contained aspartame (NutraSweet) which has no nutritional value. The other drink contained nutritionally beneficial carbohydrates that tasted equally sweet. The cyclists were not told what drink they were receiving. This was done to prevent errors (such as cycling harder with the carbohydrate drink to "please" the scientists) from entering the experiment and thus corrupting the data. Muscle biopsies to measure muscle glycogen were taken before exercise, after 2 and 3 hours of exercise. and at the moment of fatigue (when the cyclists were no longer able to work at 70% of their aerobic capacity). Blood samples were also taken every twenty minutes and after fatigue. These blood samples were used to quantitatively analyze blood glucose levels at various time points. The results of this study were that carbohydrate intake during prolonged exercise delayed fatigue by one hour. As seen from the results of carbohydrate feeding during intense exercise of cyclists, glycogen utilization is not spared in... half of the article... further studiesAnother clinical study was also conducted with the bars Carbo-Crunch from Shaklee. Cyclists who pedaled at a vigorous pace for more than three hours received Carbo-Crunch bars and water or just water. The speed was then increased to reach sprint pace. Those who drank water and ate the Carbo-Crunch bars managed to last 24 minutes while the participants who received only water lasted an average of 2 minutes. Results: These clinical studies on Shaklee products show that carbohydrates help prolong the onset of fatigue to keep the athlete going. Carbohydrate products have become so popular that dogs can even be given Power Bones, a product that gives dogs a boost of energy from glucose and stamina from carbohydrates. Regular carbohydrate intake during physical activity helps maintain constant sugar levels in the body and prolongs the onset of fatigue.