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 act of lending; a grant of the temporary use of something: the loan of a book. something lent or furnished on condition of being returned, especially a sum of money lent at interest: a $1000 loan at 10 percent interest. loanword.