Interplay of the three energy systems in swimming sarah
When a swimmer first pushes off thewall or dives into the pool tocommence their race/laps they willbe using what’s called the ATP-PCsystem which lasts for about 10seconds at maximal intensityexercise. After this initial bout ofenergy expenditure they willcontinue to use the ATP-PC systemfor the next few strokes and then theLactic Acid system will take over.
Now that the Lactic Acid system orthe Anaerobic Glycolysis system has taken over, the swimmer continues to be able to push through the exercise for around the next 30 seconds to a minute depending on how high the intensity is, after this time frame the Lactic Acid systemwill have also been used until it gets replenished. The aerobic system then takes over as the dominate energy source.
The aerobic system never reallyfully takes over as the swimmeris under water for most of theexercise and only comes up for aquick breath not very often.While the other systems havebeen exhausted this system isstill able to pick up some of theslack through these smallbreaths, this limited amount ofoxygen will usually suffice forthe duration of the exercise untilrecovery can take place.
For both preparation and therecovery the aerobic system would be major source of energy.
The replenishing of the ATP-PC system takes on average 2-3 day to completely recover after being completely used up. The Lactic Acid system takes about a hour to a day to fully recover, the aerobic system takes around 10 minutes to fully replenish itself.