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Transcript of Energy Systems
Movements requires energy. The body generates energy and it is determined by the intensity and the duration of the activity being taken. The energy comes from the foods in our diet, in particular carbohydrates and fats. The body consumes the fats and carbohydrates and turns into the into glucose, this produces energy and then turns it into glycogen which is stored in the muscles and the liver.
When the glucose goes to the fat metabolic system the glucose is then turned into triglyceride. When the body finally needs the energy the triglycerides turns into glycerol and three fatty acids these are then transported to the liver where they are then turned back to glucose
When ATP is broken down it provides energy for the muscles, it is a contraction of muscle fibre and can be made in three ways which are:
The Creatine Phosphate Energy System
The Lactic Acid Energy System
The aerobic energy System
Creatine Phosphate Energy
ATP and creatine phosphate make ATP-PCr, this is an immediate energy system. Creatine phosphate is a type of energy compound, when exercising at a high intensity it creates phosphate that is stored in the muscle then it is broken down to ATP. ATP is the source of energy production and it s usually made without the presence of oxygen. Explosive work (such as 100 sprinting) can be achieved but only for a short periods around 10 seconds at maximum intensity
ADP + Creatine Phosphate---->ATP+Creatine
High jump is a good example of creatine phosphate energy because it involves an explosive start that would usually last up to 10 seconds then the PCr runs out because it is limited.
Lactic Acid Energy System
The lactic acid energy system is a short term energy system, which requires higher intensity exercise over a longer period such a 400m race. ATP can be made by partial breakdown of glucose and glycogen, this is an anaerobic process because less oxygen is required and it is not sustainable over a long duration. It usually works around 60-90 seconds of maximal work.
Glucose ---------------->2 ATP + 2 Lactic Acid + heat
Glycogen ---------------> 3 ATP +2Lactic Acid + heat
Netball does uses lactic acid at medium level because e as the creatine phosphate finishes the lactic acid energy system starts to kicks in and take over for 60-90 seconds.
Aerobic Energy System
Aerobic energy system is a long term energy system because when there is a lot of oxygen, glycogen and fatty acids, it will all be broken down to create large amounts of ATP. It creates carbon dioxide and water and affects the muscles ability to contract. Aerobic energy production happens in the mitochondria. Mitochondria in cells are responsible for converting food into slow release energy. Due to the slow energy the heart takes a few minuets to deliver oxygenated blood to the working muscles during respiration.
Glucose + Oxygen --------------------> 38 ATP + CO2 + H2O + Heat
Fatty Acid + Oxygen ------------------> 129 ATP +CO2 +H2O+ Heat
A marathon runner would need to use the aerobic energy system because as they run they need slow release energy because the glycogen to be released and turned into glucose which is needed by the working muscles so that they have energy.
Recovery Rate is just a few seconds because the
body only uses the creatine phosphate for a few seconds
however i may vary due to the duration of the sport or the
It is an aerobic process because the body has no time to
be getting oxygen in those few seconds, making it an aerobic process because oxygen is not being used to respire fast enough.
Recovery time for the lactic acid energy system will vary due to the duration of the sport and also the intensity of the sport but it is usually takes a couple of hours for the body to fully get to normal. This is because there has been oxygen delivered to the working muscles but not enough for all the muscle so the oxygen debt has to be repaid and the muscles need time to get back t normal and the oxygen needs to get to them.
The recovery time may vary due to the duration or the intensity of the sport, but it usually takes 3-4days for the aerobic energy system to get back to normal.
This is because the body has been using slow release energy to get to the working muscles so they can last, a lot of oxygen was used to reach the working muscle and so that oxygen needs to be returned to normal.
Creatine phosphate is one of the most important energy systems in any sport, in basketball; it is needed for shooting the ball, dribbling, slum dunking doing powerful actions, this is because they are quick to do and all need power.
You need power to shot the ball if it has a chance of getting to the goal. You need to pass the ball to other players on your team and you need to pass with power so it will reach the person you intended to pass to without other people intercepting.
You also use creatine phosphate when intercepting the ball of the other opponent, and for your chances of getting the ball you need s short burst of power.
To improve the creatine phosphate you could do interval training to try improve the power and the fastness of the energy system so it is more efficient.
The player who would use this system the most is the person next to the shooting guard, because they are most likely to be the ones shooting. Each energy system is used throughout the game. Aerobic is used most in the game because the players need slow release energy to their muscles in order to contract fast and efficiently. Lactic acid is also needed for more power even though it last a few minuets the power could be the difference to a winning shot.
In a triathlon it is key for the people to be able to last the whole duration because it is a long sport where you cycle, swim and run all for a long time, they need to be able to do all these things so the oxygen needs to be slowly released into the body.
In this the most important energy system is the aerobic system because the people need slow release energy for them to be able to take part and be able to complete the sport.
The Aerobic system is used throughout the sport because each event is a log endurance event, therefore needing slow release energy.
The lactic acid energy system will be used in the first minuet of the 1st event after the creatine phosphate energy system finishes, this is because the beginning of the event the participants needs power and strength for the beginning.
To improve this system the people could continuous training so they get used to working at high intensity and being able to control their fatigue or their breathing.
In football it is important for the lactic acid energy system works because they need to run from one side to the other side, this requires speed and power fast, so the players are able to person their task quickly and efficiently.
To improve the lactic acid system they should just keep training over and over again so their bodies adjust to the lactic acid system.
In a long distance cycling event all three energy system are used up,
At the beginning of the race for the cyclist to gain speed the creating phosphate to be exhausted to give them power so they gain speed and lead.
After the Creatine phosphate has been used up the lactic acid energy system kicks in and gives them a bit more power and last a little bit longer than the creatine phosphate, the reason why the creatine phosphate had run out is because there is no time for the oxygen to be traveling around the whole body because it only last a few seconds and the so does the lactic acid energy system. When the lactic acid system has been used the aerobic energy system starts and this can last up to hours, and will help the cyclist maintain the concentration of oxygen going to the muscle in order for them to function and work efficiently. All in all the most used energy system is the aerobic energy system because it keep the cyclist going for as long as the race is.
Shotpot requires allot of power over a short period of time. The creating phosphate group is most used in shotpot because it allows the participant to gain power in a few seconds. However the creatine phosphate only last a few seconds because the oxygen cant travel a to the while body within those few seconds. The Lactic acid then kicks in after the creatine phosphate has exhausted, and the lactic acid will last a bit longer than the creatine phosphate and this will allow the participant to gain a bit more power for the throw and throw far but the system only last a a few more seconds but by that time to thrower would have gained enough speed and power for the powerful throw.
Darts needs the creatine phosphate at first for power to throw the dart as hard as possible to aim to hit the middle, this only last a few seconds then it will finish, then it will then run out and the lactic acid energy system will kick in and will be able give the person more power and more strength to hit that middle and win.
To train, you just need to keep practicing over and over again and build up the time for the creatine acid and lactic acid.