Now back to the race - the 320 - 400 Metre Point! Secret Death Touches Review The last 75-100 metres of a 400 metre race, can be considered almost the perfect example of a Creatine Phosphate fueled activity; very high intensity and lasting almost approximately 10 seconds.What happens when the stores of Creatine Phosphate dry up?
The Lactate SystemWhen the stores of Creatine Phosphate dry up the body then shifts across to the metabolism of glucose, the simplest of sugars, which could be taken from the blood or from stores in the liver and muscle.As most of us are aware, sugar contains a lot of calories and calories are a measure of energy. Chemical reactions liberate this energy from the glucose and this energy then goes back into reforming ATP. The problem with this is it requires quite a lot of oxygen to be delivered quickly into the energy production centres of the cell.
This isn't a problem when exercise intensity is low and ATP only needs to be replenished at a relatively slow rate, but when exercise intensity is high and ATP is being sucked up as quickly as it can be produced, the body simply cannot supply oxygen rapidly enough to allow the process to work efficiently.
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