Energy Systems Within Football Essay

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When I take part in a football match, my body will use all three energy systems throughout the duration of the match. These three energy systems are: the ATP-PC system, the lactate anaerobic system and the aerobic system. The energy system used will be affected by two factors: intensity and duration. This means that during the full 90 minutes of the match, I may use one energy system more than once depending on what I need to do for a certain amount of time e.g. quick sprints or long periods of jogging up and down the pitch. I will use my own performance as a central defender and analyse each energy system: what it does and when it is used. At the beginning of the match, the opposition kicks off and passes the ball back to their team mates. At this exact time, I will press up the pitch alongside my other defenders and keep jogging until one team has complete control of the ball and initially the game. During this time, I will be using the aerobic system as I am breathing and I am in the presence of oxygen. While I am using the aerobic system, my body will be producing energy through the three distinct stages that undergo in the presence of oxygen. These are: Glycolysis, the Krebs cycle and the electron transport chain. During these three stages glycogen is converted to Pyruvic acid which is then converted to acetyl- coenzyme A in Glycolysis. Then the Pyruvic acid is placed into a reaction which has produces hydrogen which is then transported to the electron transport chain. Here the hydrogen is oxidised and forms water. The advantages of this system would be that more ATP is produced but the disadvantages would be that lactic acid is produced. When the opposition plays a ball through I will need to turn and sprint after the ball for a short time e.g. 5 seconds. During these 3-5 seconds my body will be using the ATP-PC system in order to give me the initial burst

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