I once heard that it does break down into energy however I'm not sure on how entirely true that is. I'd say sure.
Answer:
A syndrome involving the compression of nerves and blood vessels due to swelling within the enclosed space created by the fascia that separate groups of muscles is known as Compartment Syndrome
Explanation:
Muscle groups of the human limbs are categorized into sections or compartments. So compartment syndrome occurs when there is an increased pressure within a compartment which compromises circulation and function to the tissues within that area which results in swelling of that specific area
Because of you have good endurance while doing cardiovascular fitness it will help a lot/make it easier to do muscular fitness.