3)
Over the past thirty years research on the effects of ergogenic aids of CHO and caffeine (CAF) during endurance exercise has been studied and, researchers have mixed answers to why the combination of the two improve exercise. The research states that combination of these two ergogenic aids improves endurance performance. CAF is absorbed quickly through the gastrointestinal tract and is metabolized in the liver which allows for elevated levels to appear within fifteen to forty minutes. The effect that CAF can have is it can cross through the blood brain barrier without difficulty. In the brain, CAF competes with adenosine for binding sites (adenosine A2 receptor) in the central nervous system. CAF is the antagonist because it can block …show more content…
Bussau et. al (2002) states that athletes that are trained can store maximal amount of muscle glycogen for three days if fed with a CHO-enriched diet. The benefit of CHO enriched diet allows for the increase in muscle glycogen but constantly upkeep of CHO enriched diet will cause problems for burning fat from the client’s body. The affects that allow CHO loading to be beneficial also cause problems in the long run. As previously stated, with the increase in CHO the body will increase the CHO oxidation which suppresses lipolysis. With the decrease in lipolysis the body is metabolizing the CHO so even though the client is working at a better rate and lasting longer the body will still have the same or greater fat content. Jensen, Rustad, Kolnes, and Lai (2011) reported that with a prolonged intake of CHO enriched diet will actually be converted into lipids and not into muscle glycogen called lipogenesis. Kersten (2000) review article stated lipogenesis can be stimulated because glucose is a substrate for lipogenesis (glucose can be converted into acetyl-CoA which can promote fatty acid synthesis) and high glucose releases insulin which inhibits the glucagon from the pancreas. The optimal nutritious diet for an athlete needs to have proper range of CHO, fat, and protein. American College of Sports Medicine recommends that athlete’s consumption of CHO range from 6 to 10 g/kg body weight per day, for protein intake for endurance athletes the range is 1.2 to 1.4 g/kg body weight per day, and the fat intake should be about around 25% of caloric intake with less than 10% coming from saturated fats. Making restrictions on diets can actually cause the risk because of micronutrient
Over the past thirty years research on the effects of ergogenic aids of CHO and caffeine (CAF) during endurance exercise has been studied and, researchers have mixed answers to why the combination of the two improve exercise. The research states that combination of these two ergogenic aids improves endurance performance. CAF is absorbed quickly through the gastrointestinal tract and is metabolized in the liver which allows for elevated levels to appear within fifteen to forty minutes. The effect that CAF can have is it can cross through the blood brain barrier without difficulty. In the brain, CAF competes with adenosine for binding sites (adenosine A2 receptor) in the central nervous system. CAF is the antagonist because it can block …show more content…
Bussau et. al (2002) states that athletes that are trained can store maximal amount of muscle glycogen for three days if fed with a CHO-enriched diet. The benefit of CHO enriched diet allows for the increase in muscle glycogen but constantly upkeep of CHO enriched diet will cause problems for burning fat from the client’s body. The affects that allow CHO loading to be beneficial also cause problems in the long run. As previously stated, with the increase in CHO the body will increase the CHO oxidation which suppresses lipolysis. With the decrease in lipolysis the body is metabolizing the CHO so even though the client is working at a better rate and lasting longer the body will still have the same or greater fat content. Jensen, Rustad, Kolnes, and Lai (2011) reported that with a prolonged intake of CHO enriched diet will actually be converted into lipids and not into muscle glycogen called lipogenesis. Kersten (2000) review article stated lipogenesis can be stimulated because glucose is a substrate for lipogenesis (glucose can be converted into acetyl-CoA which can promote fatty acid synthesis) and high glucose releases insulin which inhibits the glucagon from the pancreas. The optimal nutritious diet for an athlete needs to have proper range of CHO, fat, and protein. American College of Sports Medicine recommends that athlete’s consumption of CHO range from 6 to 10 g/kg body weight per day, for protein intake for endurance athletes the range is 1.2 to 1.4 g/kg body weight per day, and the fat intake should be about around 25% of caloric intake with less than 10% coming from saturated fats. Making restrictions on diets can actually cause the risk because of micronutrient