1 Anaerobic exercises use fast-twitch muscle fibers (Type II muscles) much more. 2  The main fuel sources are ATP or glucose; much less oxygen, fat and protein is used. 3  This type of activity produces lots of lactic acids.
A loanword (or loan word or loan-word) is a word borrowed from a donor language and incorporated into a recipient language without translation. It is distinguished from a calque, or loan translation, where a meaning or idiom from another language is translated into existing words or roots of the host language.
The abstract noun borrowing refers to the process of speakers adopting words from a source language into their native language. Loan and borrowing are of course metaphors, because there is no literal lending process. There is no transfer from one language to another, and no returning words to the source language. The words simply come to be used by a speech community that speaks a different language from the one these words originated in. Borrowing is a consequence of cultural contact between two language communities.