unit- 6 sports and nutrition

7/30/2019 Unit- 6 Sports and Nutrition

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SPORTS AND NUTRITIONNUTRITION OR DIET

Nutrition can be defined as food or nourishment needed to keep an organism growing and healthy. It

also refers to the process of providing or receiving food or other life-supporting substances. Our diet

consists of a variety of food stuffs. The heat and energy derived from the oxidation of food stuffs, helpsus in doing work, in our growth and development, in protecting us from disease and in the repair of

worn out tissues. All the essential nutrients required for man are not found in a single substance. It is

therefore necessary to make proper selection of food stuffs for the constitution of the required diet.

ELEMENTS OF DIET

A diet which contains all the food stuffs necessary to maintain the body in good health should be made

up of the following basic elements:-

CARBOHYDRATES

Carbohydrates are the main energy source for all types of exercise. Carbohydrate is stored as glycogen

in the body and the amount of glycogen stored in the body affects endurance. Carbohydrates are the

compounds of Carbon, Hydrogen and Oxygen with chemical formula CH2O. A large part of an athletesdiet should be carbohydrate. The primary function of carbohydrates is to provide energy for body. Foods

high in carbohydrate include pasta, rice, starchy vegetables (e.g. potatoes, carrots, corn, and sweet

potatoes), fruit and bread. Not all carbohydrates are equal in providing needed nutrients, however.

Focusing on carbohydrate from whole grains, fruits and vegetables will make sure vitamins, minerals,

fiber and other important nutrients are part of ones diet, while filling up on too many sweets and

processed foods can negatively impact sports performance.

PROTEIN

Protein is essential to build and repair muscle tissue. They are complex organic compound which form of

Carbon, Hydrogen and Nitrogen. Protein allows muscles to contract, gain in size and increase in

strength. Loading up on protein does not guarantee larger muscles. Protein in excess of the bodysneeds is stored as fat, not protein. Muscles growth comes from hard work, proper training and balanced

nutrition. Food sources of protein include lean meat and poultry (fish and chicken), dried beans and

peas, nuts seeds and dairy products. Protein needs for active athletes, especially endurance sports, are

higher than for non-athletes.

FAT

Fats contain atoms of Carbon, Hydrogen and Oxygen. Provides energy, protects the bodys organs and

helps with the absorption of some vitamins. When fats are eaten as part of healthful foods, they provide

an important energy source for athletes in training. Good choices include the fats from nuts, seeds,

vegetable oils.

VITAMINS

All vitamins and minerals are important. Vitamins are complex compounds of carbon. They are

important for metabolism of fats and carbohydrates. They do not give us energy directly.

Vitamins are divided into two groups

Fat soluble vitamins: These vitamins are soluble in fat. They come into our body through fats and they

are stored in liver and fatty tissues. These vitamins are A, D, E and K.


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Water soluble vitamins: These vitamins are soluble in water. They are not stored in body, so we need

them moir frequently. These vitamins are B and C.

MINERALS

Minerals contain certain elements required by our body. They are needed in small quantity but they are

very essential for proper growth and development of body. The important minerals required by our

body are Iron, calcium, Phosphorus, sodium, Iodine, Fluoride, Chloride, Zinc, Potassium and Copper.

Water

Water is critical to all body functions and makes up about 70 percent of a persons body weight. Water

helps move nutrients throughout the body and helps remove waste from the body. Replacing the fluids

lost during exercise is essential to sustaining performance, preventing dehydration and avoiding injury. 5

to 6 liters water in a day is the recommended daily intake for most people.

BALANCED DIET

Balanced diet may be defined as one which contains a variety of foods in such quantities and

proportions that the need for energy, amino acids, vitamins, minerals, fats, carbohydrates and other

nutrients is adequately met for maintaining health and vitality. Intake of such a food helps in the growth

and development of our body and protects us from diseases. The quantity of food required also differs

from person to person. It depends upon age, sex, profession and physiological conditions.

COMPONENTS OF DIET

Carbohydrates and Fats: These components provide energy to our body. When eaten in proper volume,

your body has optimal energy levels. However, if the ingested volume exceeds the energy use, the

excess carbohydrates and fats are converted to fats and deposited in the body. The carbohydrates

should be 60 to 70 percent and fats should be 10 to 15 percent in our diet.

Proteins: Proteins helps in the growth and development of body. It helps to create new muscles tissues

and repair any injured tissues. If you eat excess proteins to what you actually need, the body will surely

convert it to fats for storage. Proteins should be 15 to 20 percent in our diet.

Vitamins, minerals and water : These components help in proper functioning and defence of various

organs. It has been observed that Vitamins in required quantity are essential for good performances but

extra vitamins added to normal diet of athletes do not show any improvement in performances. Water

is also very important. A player should drink at least 8 to 10 glasses of plain water daily.

ROLE OF DIET ON PERFORMANCE

To have enough energy for exercise, an adequate number of calories must be consumed. The amount of

calories needed depends on many different factors, such as age, sex, height, weight, muscles mass and

fat mass. Few calories can also negatively affect workouts and energy levels, as well as cause the

breakdown of muscle and bone, increasing the risk of injury.

The effects of good nutrition on the body are as visible as the effects of bad nutrition on the body. The

difference is that bad nutrition can destroy the body, while good nutrition only supports and builds up

the body.

Good nutrition cause many positive effects:-

1. Maintain normally body function2. Maintain healthy weight3. Prevent disease4. Provide stress relief


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Players should follow the following guidelines for their good performance:-

Before training/competition carbohydrates provide the energy to sustain the workout. Players should

take a carbohydrates drink or meal about two hours before competition or training. Fruits, milk, cooked

vegetables, chicken etc. may be included in such diet.

Fats, meats, gas forming foods, greasy foods, or spicy foods should be avoided beforecompetition.

Diet of the players should not be different on the day of competition. Adequate fluids loading should be started at least 2.5 hour before competition. The experts do not recommend a large amount of concentrated glucose in less than hour before

exercise.

Caffeine in the form of coffee helps mobilization of free fatty acid. So, it is recommended, buttables of caffeine are not recommended.

After competition diet must be rich in carbohydrates as well as proteins. During competition one should take fluids as and when required.

Aside from training, nutrition is the most important influence on sports performance. To reach ones

highest potential, all of the bodys systems must be working optimally. The best way to achieve this is to

eat a variety of nutritious foods. Calories, carbohydrate, protein, fat, vitamins, minerals and fluids all

play unique and crucial role.


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MODEL QUSTIONS

LONG ANSWERS TYPE QUESTIONS (150 WORDS)

1. Define nutrition. Explain the importance of nutrition for sports person in detail.2. Explain the various important elements of diet required for a sports person in detail.3. What do you understand by balance diet? Explain in detail.4. Explain the role of diet on sports performance of an individual in detail.5. Give a brief introduction of the components of diet.

SHORT ANSWERS TYPE QUESTIONS (60 WORDS)

1. Explain nutrition and balance diet.2. Discuss the role of carbohydrates and protein for better sports performance.3. How vitamins minerals and water helps a sports person? Explain.4. Elaborate the role of following in assisting sports performance:

a. Fat b. Carbohydrates c. Protein d. Vitamins and minerals5. Write down effects of good nutrition.

unit- 6 sports and nutrition

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