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There are many factors that can affect the rate in which energy is taken out of the body. Maintain Weight: Calories in = Calories out Energy stores need to be replaced to be able to maintain the rate of work and energy balance.Įnergy in = Energy out + Change in body stores High intensity exercise needs a lot of energy therefore glucose is the preferred fuel due to its long lasting energy source. Fat has a high amount of calories therefore it is harder to break down and use the energy source from it. The body uses energy in different ways however some foods are better for you than others.Įven though fat has a higher amount of calories, carbohydrates are still the best source of energy due to being able to be stored and used for longer durations of time. Carbohydrates, fats and protein all contain a high energy count. The amount of energy in food products depend on what the food product consists of. Energy can also be measured in joules which depend on work done. This is just an average these figures can vary depending on age, health, physical activity and intensity level of physical activity. The average man should consume 2500 kcal per day and women should consume 2000kcal per day. Positive energy balance (with little or no exercise) will increase body weight and percentage of fat.Įnergy is measure in calories. Too much energy going in to the body can lead to: Positive energy balance is when more energy goes in to the body than goes out.
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Severe negative energy balance can lead to the body shutting down as there is not enough energy for the body to survive. Negative energy balance is used for practical weight loss (if you’re on a diet) when energy intake is lowered it tells the body to use fat reserved due to lack of energy therefore fat will be burned off during exercise. Negative energy balance is when more energy goes out of the body than goes in to the body. Energy balance isn’t always used for gaining or deducing weight, for sports performance it’s important to maintain weight therefore you can maintain your sports performance levels whilst getting the correct amount of energy in to the body. A sports performers diet must take in to account the amount of calories worked off during exercise therefore they know how much to consume and not gain weight at the same time. Energy balance is important because during exercise a lot of energy is released from the body therefore equal amounts of energy need to be put into the body to be able to maintain sports performance and not feel exhausted and tired because of a lack of energy supply. Another example being a swimmer, they must have a streamline body figure therefore they may need to lose some excess fat before they can compete. Sport specific body size is also important to athletes therefore a male rugby player may have to be a certain build and structure to be able to endure the physical contact through the game. The importance of Energy balance to Sports PerformanceĪthletes, especially endurance athletes, need to understand the importance of energy balance. Energy balance is also more than just a change in weight it also is related to what is happening in the cells which can affect metabolism and hormones. Energy is also used for the process of digestion, absorption and transport. The energy requirements in the body which includes the amount of energy required for maintenance at rest, physical activity and movement. Energy we consume is converted into three main categories. In other words, the amount of calories being consumed compared to the amount of calories being used by the body.Įnergy balance is important as it dictates whether a person is going to lose, gain or remain the same weight. Energy balance relates to the link between the amounts of energy going in to the amount of energy going out.