Conversation so far:
lactic acid production would be the fate of which energy system
the ultimate fate of the lactate is oxidation to ATP
what does ATP consist of
As the name suggests the ATP-PC system consists of adenosine triphosphate and phosphocreatine.
what does ATP do
This energy system provides immediate energy through the breakdown of these stored high energy phosphates.

Question: how does the acid produce the energy system
Self-contained rewrite: how does lactic acid produce ATP