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Energy System (ATP = ADP + P + Energy, Adenosine triphosphate = Adenosine…
Energy System
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Disadvantage - Lactic Acid, Stimulates pain receptors and denatures enzymes
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Disadvantages - Takes time to increase respiration, Slow energy production
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Glycogen > Glucose > Pyruvic Acid > Aceytel Co-enzyme A > Citric Acid > Krebs Cycle > Electron Transport Chain
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Advantages - High yield, Not harmful, Lots of fuel
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Energy Continuum - That no one energy system is being used at one time, there is just one that is used more predominantly at the time depending on intensity
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OBLA - Onset of blood lactate accumulation ( approx. 4mmols) where lactic acid is produced faster than it is broken down
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EPOC = The volume of oxygen required consumed post exercise to return the body to it’s ‘pre-exercise’ state.
Alactacid component = The initial ‘ fast ‘ stage of recovery lasting 3 minutes requiring 1-4 litres of oxygen (approx 10% of EPOC)
Lactacid component = The second ‘slower component of recovery lasting 3mins - up to 24hrs requiring 5-8l of oxygen.
Oxygen Deficit = The Oxygen that would be require to complete the activity entirely aerobically.
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1.Replenishment of blood and muscle oxygen - Haemoglogin and myoglobin
During the first minute of exercise oxygen re-associates with haemoglobin (in the blood) and myoglobin in the muscle.
2.Replenishment of ATP and PC stores
ATP store and PC stores are depleted during exercise and return to normal within 3 minutes. PC store are restored via the aerobic system at the end of exercise.
50% of stores are resynthesised in 30s
95% of PC stores are resynthesised in 3mins
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●Warm up
●Active recovery (Cool down)
●Cooling aids-ice baths-prevention of DOMS-delayed onset of muscle soreness.
●The intensity of the training you are doing-what re you trying to achieve and which energy system will be used to help you achieve this.
●Work and ratio. How long will you work for and how long will you rest for, will vary depending on the energy system you are using.
●Strategies and tactics during a game so you can get some recovery in.
●Nutrition-pre-during and post.
1.Ventilation and CirculationRespiration (TV & F) and heart rate (SV & Q) raise during exercise and remain elevated thereafter. Although respiration rate and heart rate must remain elevated at the end of exercise to remove waste products, keeping Heart rate and breathing rate elevated requires energy (approx 1-2% EPOC)
- Body temperature
The body temperature will remain elevated at the end of exercise. For every 1 degree rise in the body’s temperature it will increase the body’s metbolic rate by 13-15%. This can continue for several hours after exercise (60-70% of EPOC).Removal of lactic acid
1.50-75% of lactic acid re-enter Krebs cycle and broken down to H20 and CO2.2.Approx 10-25% of lactic acid is converted back to glucose (gluconeogenesis) and glycogen (glyconeogenesis).Small amounts are converted via the cori cycle into sweat and urine.
