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

Energy Balance

Extracts from this document...


Russell Smith 7th January 2011 Energy Balance Energy balance plays a vital role in good health, weight management, energy levels, recovery, and sports performance. Maintaining the correct energy balance for your sport can make the difference between success and not reaching your potential. It is important to make sports performers aware of how significant energy balance can be. Energy intake is the total number of calories ingested daily, where as Energy expenditure is the total number of calories used daily. There are four different aspects of expenditure these include, basal metabolic rate this is the amount of daily energy expended while at rest in a neutrally temperate environment, dietary thermogenesis this is how many calories your body burns through digesting absorbing and using food, adaptive thermogenesis this is production of heat in response to environmental changes in temperature and finally physical activity which consists of any physical movement. Energy Imbalance between intake and expenditure consists of gaining and losing imbalance. Gaining imbalance is a result of energy intake being higher than what is consumed in external work and other means of energy expenditure. ...read more.


Our BMR demands around two-thirds of or daily energy intake required for every day activities and is the largest part of our daily energy expenditure. By using body mass, height and age it allows us to get an accurate estimate of our BMR. This helps us to monitor body weight and is a practical way of assessing energy balance. Weight stablility is very important for athletes during sports performance as it allows them to see whether their energy requirements are being met, also by monitoring body weight before and after exercise training sessions allows athletes to assess their performance. Deliberate weight loss of gain is used to enhance athletic performance, and is usually done off-season as not to affect their performance in competition. Weight loss during peak season can give athletes an inadequate amount of energy, carbohydrate and fluid intake where as weight gain in the form of body fat can compromise endurance, speed and power. Energy balance is a state where energy intake is equivalent to energy expenditure, resullting in no weight gain or loss. ...read more.


One disadvantage for it is for some sports, an individual would not have enough energy. For a negative energy balance sports such as wrestling, boxing and weight lifting allow a performer to assess whether they are within the right weight category. Disadvantages include major health risks because not enough nutrients, minerals and vitamins are provided to the body therefore quickening the process of fatigue and lowering energy levels. Also, losing weight can be mentally draining for the performer causing a shorter attention span and lowering alertness. Although advantages are an individual will look aesthetically pleasing, therefore this can improve over all confidence. Also as I stated before it makes it easier for the person to make their weight category. Finally, for a positive energy balance sports such as boxing and horse riding allow a performer to improve performance, muscle size and strength which are the main advantages. However it can raise BMI, cause obesity, cause disease as well as putting pressure on organs which are all disadvantages. Overall, Energy balance is very important for a sports performer, as it enables them to maintain the correct weight and proportions to keep a good level of endurance, speed and power that is needed for a good performance. ?? ?? ?? ?? ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Contemporary Studies 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 AS and A Level Contemporary Studies essays

  1. Nutrition and Hydration. Energy Intake and Expenditure In Sports Performance

    direct calorimetry Closed circuit spirometry - the person breathes in pure oxygen from a spirometer Open circuit spirometry is when energy expenditure is measure during exercise when the person is breathing a mixture of oxygen carbon dioxide and nitrogen. It is calculated by the percentage changes in oxygen and carbon

  2. A.S Personal exercise program for netball

    If the muscles are working correctly to the exercises performed then the aims of the exercise programme will be achieved. Overload The intensity of the training undergone. The training should be at intensity where the individual feels a discomfort to the working muscle(s).

  1. Describe and explain the importance of energy balance in relation to a sports performer

    Calorie and joules To get energy it needs food as a fuel and oxygen to burn it.

  2. Effects of energy intake and expenditure on performance

    at a higher metabolic rate because your metabolism stays raised for several hours. Depending on the intensity at which you have worked your body's metabolism will stay high for longer. There are a several factors effecting energy intake and expenditure, I've already stated about activity levels and time but there

  1. Physiology Within Sport

    After the skipping during the 1 minute interval the body would resynthesise any ATP stores, and also due to the heavily relied on lactic acid energy system the heart would increasingly be pumping to reduce the levels of lactic acid within the muscles.

  2. Energy intake and expenditure. Nutrition needs of a fooballer and long distance runner.

    Bioelectrical impendance analysis Bioelectrical impendance is a commonly used method for estimating body composition. This method measures body composition by sending a low, safe electrical current through the body.

  1. Hydration has a significant effect on sports performance and can determine the success of ...

    Hydration levels will have a major impact upon sport performance; if hydration is at the right level then an athlete will have the best chance possible to perform to their best potential. Good hydration can ensure that concentration levels are at their highest along with increasing reaction- response times and allow better decision making.

  2. Describe the components of a balanced diet.

    Vitamin K is found in dark green leafy vegetables such as spinach and kale. It is a fat soluble vitamin which is involved in the clotting process of blood. In the intestines bacteria synthesise a number of important clotting factors which need vitamin K.

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