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Performance enhancement under low carb diets
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Carbohydrates
For my health project I did carbohydrates. They are the bodies energy source.
Carbohydrates supply the body with the energy it needs to function. They are found almost exclusively in plant foods, such as fruits, vegetables, peas, and beans. Milk and milk products are the only foods derived from animals that contain a significant amount of carbohydrates.
Carbohydrates are divided into two groups, simple carbohydrates and complex carbohydrates. Simple carbohydrates, sometimes called simple sugars, include fructose (fruit sugar), sucrose (table sugar), and lactose (milk sugar), as well as several other sugars. Fruits are one of the richest natural sources of simple carbohydrates.
Complex carbohydrates are also made up of sugars, but the sugar molecules are strung together to form longer, more complex chains. Complex carbohydrates include fiber and starches. Foods rich in complex carbohydrates include vegetables, whole grains, peas, pasta, potatoes and beans.
Carbohydrates are the main source of glucose, which is a major fuel for all of the body's cells and the only source of energy for the brain and red cells. Except for fiber, which cannot be digested, both simple and complex carbohydrates are converted into glucose. The glucose is then either used directly to provide energy for the body, or stored in the liver for future use. When a person consumes more calories than the body is using, a portion of the carbohydrates consumed may also be stored in the body as fat.
When choosing carbohydrate-rich foods for your diet, always select unrefined foods such as fruits, vegetables, peas, beans, and whole-grain products, as opposed to refined, processed foods such as soft drinks, desserts, candy, and sugar. Refined foods offer few, if any, of the vitamins and minerals that are important to your health. In addition, if eaten in excess, especially over a period of many years, the large amounts of simple carbohydrates found in refined foods can lead to a number of disorders, including diabetes and hypoglycemia (low sugar). Yet another problem is that foods high in refined simple sugars often are also high in fats, which should be limited in a healthy diet.
Carbohydrates are the best fuel for athletes because they take less oxygen to burn than protein or fat. You'll be able to exercise harder, both during training and competition, when you eat enough carbohydrates. Each gram of carbohydrate provides 4 calories.
A high carbohydrate diet allows you to train harder by rebuilding your carbohydrate stores and decreasing your recovery time.
As Fink points out, Carbohydrates, in the form of glucose, are the main source of fuel for all physical activity. Fats on the other hand are primarily used as a fuel source while resting and when performing moderately to low intensity exercises. (Fink, 2012, p.3) It’s these facts that are so significant. The event she participates in will be fairly short yet very intense with that in mind as an 800-meter track athlete the Carbohydrates are going to serve her the best. She will require immediate as well as a short sustained use of energy for her event. While she will be using both energy systems Fink states she will mainly be using anaerobic energy system which “is a major contributor to intense activities that last from 1 to 3 minutes.” (Fink, 2012, p. 50)
Carbohydrates are categorised in three many groups: Ø Monosaccharide – monomers and therefore contain single surgar. Ø Disaccharide – contain double sugars. Ø Polysaccharide – are large molecules containing many complex sugars. The general formula for carbohydrates is Cx(H20)y. Monosaccharides are white crystalline solids with low molecular mass and sweet tasting.
Carbohydrates provide energy for the body to function. When these carbohydrates are not eaten the body then burns its stored fat for fuel. As the body's supply of fat diminishes one begins to lose weight. Therefore, the Atkins Diet is successful at making one lose weight in the short term because carbohydrate intake is severely restricted to less than 20 grams per day and will eventually climb to about 40 grams after a few weeks. This "translates to no more than three cups of loosely packed salad or two cups of salad with two-thirds cup of certain cooked vegetables each day" (www.webmd.com). However, the body needs a certain amount of these carbohydrates and after a while of recieving them the body does not function properly. According to Gail Frank, a PhD professor of nutrition at California State University in Long Beach, "The body needs a minimum of carbohydrates for efficient and healthy functioning -- about 150 grams daily" (www.webmd.com). She states that less than 150 grams of carbohydrates disrupts the body's normal metabolic activity. Also, "the brain needs glucose to function efficiently, and it takes a long time to break down fat and protein to get to the brain," (www.webmd.com). Glucose results from carbohydrates or sugar broken down into the bloodstream; but also occurs naturally in fruits and honey. Therefore, the body needs a certain amount of good carbohydrates like fruits and vegetables to stay healthy.
The strict limitation of carbohydrates in a diet may appear to give the desired result of weight loss, but actually brings many health risks. Instead, carbohydrates help to reduce health risks, and also provide your body with key sources of energy. Not only are carbohydrates the main source of energy for the body, but they also create fiber which helps the body’s organs to function properly. The consumption of carbohydrates is important for normal functions of the body, but especially for the performance of an athlete. In order for maximum athletic performance, a large amount of carbohydrates must be consumed throughout the period of a workout. Overall the right amount of carbohydrates and exercise are necessary for a healthy diet.
The first step to begin carb cycling is to understand what carbohydrates are and what they do for the body nutrition wise and how they affect one’s endurance. Carbohydrates replenish the body’s glycogen (Fass). Glycogen stores the carbohydrates consumed and helps prevent fatigue, muscle cramps and more (Coleman). Carbohydrates are also a main source of energy for the body
Low carbohydrate (carb) diets have been used as a weight loss treatment for many years. Recently low carbohydrate diets are being used with athletes as a performance enhancement method by changing training adaptations. This essay will examine the health risks and benefits of a low carb diet, as well as the effects of low carb diets on the endurance athlete in regards to their training and performance. There are many short term benefits of low carb diets. However there are also many long term risks that outweigh the benefits for the general population. Evidence shows that exercising on a low carb diet has positive adaptation to training for aerobic athletes. However there is not enough evidence on what the long term effect of this could be, and so the net health benefits for a low carb diet cannot be determined for athletes.
The body breaks down various carbohydrate foods (whether simple or complex) into glucose, which is used easily for energy or saved away in muscles and fat stores for later use. Carbs are the body’s preferred, No. 1 energy source. However, they aren’t the only macronutrient that supplies energy to cells. This is why it’s possible to follow a low-carb diet and still have enough energy, endurance and muscular strength. However, special care should be taken in relation to Refined and processed carbs which release glucose (sugar) into the bloodstream more quickly, leading to symptoms like low energy levels, cravings, overeating, weight gain and brain fog. Eating lots of processed/fast carbs can also increase risk for insulin resistance and diabetes. “Slow carbs” like veggies, whole pieces of fruit, ancient grains and legumes provide a slower release of glucose and better supply of energy for our cells that lasts for
arg.gov.sk.ca - arg.gov.sk.ca - arg.gov.sk.ca - arg.gov.sk.ca - arg.gov Carbohydrates supply 80-90% of dietary energy. Sugars, starch, cellulose and related substances are carbohydrates. Starch is more easily digested than cellulose. Grains are easy to digest as they are 60-80% starch. A recent study conducted by Sharon R. Bullimore et al.
There are foods that have been known to have a higher glycemic index and others with a low glycemic index. However, how large of small the glycemic index value of a particular food maybe does not just tell a person how much effective the blood glucose level is responding to effectiveness energy burned. This glycemic index can also help in a person’s plan or eating habit. According to mayo clinic dietician association does statistics on Glycemic index from the Sydney University Glycemic index research center, glycemic index is ranked from 0-100 constitute only foods and beverages that contain carbohydrate. “Food with high glycemic index scored 70 and above on the glycemic index scale. These foods include; plain white bread, brown rise, white rice, watermelon, boiled red skin potato and white skinless baked potato. Food with median glycemic index range from 56 to 69. These foods include; sweet corn, bananas, pineapple, raising and a few kinds of ice cream. Food with low glyce...
There are a few exceptions to each food group. For example, legumes like peanuts and soy are high in fat. And avocados—a fruit—are high in fat, too. But as long as you stick to the typical foods I’ve outlined above, you’ll eat a diet rich in carbohydrates.
Carbohydrates are biomolecules that consist of a chain or ring of carbon atoms attached to hydrogen and oxygen atoms. The simplest formula for carbohydrates is (CH2O)n. Carbohydrates are important to organisms for a variety of reasons. They are used to form the structural components of the cell, aid in energy storage, and serve as intermediary compounds for more complex molecules. Carbohydrates are classified as either monosaccharides, disaccharides, or polysaccharides. Both monosaccharides and disaccharides dissolve easily in water. Carbohydrates are produced in plants through the process of photosynthesis and animals obtain these carbohydrates by eating the plants. ("BIO 1510 Laboratory Manual," 2016)
In order to perform at peak potential an athlete must fuel their body with nutritious foods. Proteins, carbohydrates, fruits and vegetables; these three-core food groups fuel a winning athlete. Proteins help build, teeth, bones and muscles, and create enzymes, red blood cells, long-term energy, as well, boost the immune system. Its functions are the most diverse of any food group. Protein consists of combinations of structures called amino acids that combine in various ways to make muscles, bone and tissues. They serve other functions as well including nutrient transportation and enzyme production for overall health beneficence. Adequate, regular protein intake is essential because the body does not easily store it. Various foods supply protein in different amounts with the highest quantaty coming mostly from animal products such as meat, fish, and eggs.
Carbohydrates - the main role of a carbohydrate is to provide energy, this is because they are the body's main source of fuel, which is needed for physical activity, brain and operation of the organs. All the tissues and cells in the body need carbs but not only that they are also important for intestinal health. Carbohydrates are biological molecules that contain carbon(c), hydrogen(H) and oxygen(O) atoms. Monosaccharides are the simplest unit of carbohydrates and the simplest form of sugar.
The most important nutrient categories are starches, minerals, sugars, and electrolytes. Starches and minerals fit into the area of complex carbohydrates. Complex carbohydrates are polysaccharides (many sugars bonded together). Because of the multiple bonds, polysaccharides are able to store energy for later use. Simple sugars make up the other group of carbohydrates. The bonding structures of simple sugars are much less advanced that than those of complex carbohydrates. This allows for the burning of simple sugars in an athlete's body. Electrolytes are a category of their own because they are helpful to an athlete all of the time, whether energy storage or energy burning is needed.
During heavy training, carbs should make up 65% of your diet. This is required because carbs produce a major amount of energy in your body. They are broken down into simple sugars that are stored as glycogen in your muscles. If a dancer does not ingest enough carbohydrates, his or her capability to dance successfully will decline.