• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Sport nutrition P3, P4, M1

Extracts from this document...


Sport nutrition P3, P4, M1 Energy measurements Energy from food can be measured in calories, joules, kilocalories and kilojoules. Calories measure energy, especially heat energy. One calorie is the energy required to raise the temperature of one gram of water by one degree Celsius and a kilocalorie is equal to 1,000 calories. A joule is most commonly used to measure energy, one joule moves a mass of 1g at 1 metre per second and a kilojoule is equal to 1,000 joules. Sources Fats, carbohydrate and fat are the main energy fuel used by your body. When they are digested the body uses the three energy sources and the body breaks it down into their basic unit's, carbohydrates into sugars, proteins into amino acids, and fats into fatty acids. The body uses these basic units for growth and activity's. Complex carbohydrate consists of large molecules of simple carbohydrates, so they must be broken down into simple carbohydrates before they can be absorbed so this tends to be quicker than fat and proteins. ...read more.


For example many women thinks it is fashionable to be skinny so this will have an affect on there body composition making them ectomorph. Lean body mass and body fat is how you work out your body composition. Lean body mass includes the bones, muscle, water and organ tissue. Whereas body fats includes your essential and non essential fat stores. Athletes are normally concerned about there weight, generally for performance and health reasons. It is possible to alter your body composition by exercising and a correct diet. There are three methods of assessing your body fat. Skinfold callipers, bioelectrical impedance and hydrodensitometry. Skinfold calliper uses callipers to measure skinfold thickness at several areas of your body. You will need a partner who pinches your skin at different areas and measures them with callipers. The measurements are used to calculate percentage of body fat. Bioelectrical impedance is another good way to measure fat percentage they work by measuring the resistance of body tissues to the flow of a small electrical signal. ...read more.


A low amount of fat will make the swimmer move through the water better. Energy intake and expenditure in football An ideal football player requires 55 to 60 percent of their daily caloric intake to come from carbohydrates, 15 percent from protein, and 30 percent from fat. This is because football is a stop and go sport with short bursts of intense effort followed by rest. Therefore the primary fuel for football is carbohydrate and if the body burns all the carbohydrate storage the body will use fat as an energy source. Footballers tend to be in-between mesomorph and ectomorph making them quick and strong. Energy intake and expenditure in cycling Carbohydrates are the primary source of energy for all cyclists. Fats, an alternative energy source, are more important in slower endurance events. Protein, the third component, is used to maintain and repair cells and tissue, but can also be a backup source of energy. A cyclist will require 70-75 percent of carbohydrates, 15-20% percent from fat and 35% fat. Because cycling is an aerobic sport the body will use up your glycogen storage fast and then your body will use fat as the secondary energy source. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Exercise and Training section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Exercise and Training essays

  1. Analysing Performance Sport: Kayaking

    Training I will practice all of this as much as possible in the three weeks I have. Before I started my training program I will take a test in most of the areas I wish to improve, this will allow me to see how I have improved over the two weeks.

  2. Hill walking draft 1 - Aayushmaan

    During an expedition, this would be essential in almost any situation since a loss of balance can result in a fall that can be injurious or even fatal, with respect to the area's altitude from the ground, and how far away one is from the cliff's edge.

  1. Fitness Requirements needed for football.

    After a gradual warm up I will spend time stretching. I will only use dynamic stretching in the warm up but will use static stretching in the cool down whilst the muscles are still warm so I will get a better stretch and reduce the risk of Delayed Onset Muscle Soreness.

  2. Officiating in sport

    He warned players of the "foot high" rule and this maintained that the players remained free from injury. Chris used the "drop ball" method when ever possible due to the fact free kicks are hard to play on a 5 a side pitch.

  1. PEP My main sport is hockey and as the hockey season has now ...

    Graph 3 Page 41 Graph 4 Page 42 Graph 5 Page 42 Graph 6 Page 42 Graph 7 Page 43 Graph 8 Page 43 Introduction to Me My name is Will, I am a 15 year old boy who is 5'7" 1/4 (1.71 m)

  2. The skills and techniques required for an opening bowler in Cricket is the knowledge ...

    This is a perfect example of how to hold a bowl for an opening bowler for a seamer. All fast bowlers grip the seam vertically, with the middle and index fingers on either side, with the ball resting in the third finger and thumb.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work