: of, relating to, or being muscle fiber that contracts quickly especially during brief high-intensity physical activity requiring strength compare slow-twitch

Examples of fast-twitch in a Sentence

Recent Examples on the Web Some people may have a higher proportion of fast-twitch muscle fibers, which have greater growth potential. Alyssa Hui, Verywell Health, 16 Nov. 2023 DeSantis was essentially talking about two leagues, and how the mostly Black one, the NBA, is full of freaky athletes with fast-twitch muscles and apparently not as democratic or meritocratic or whatever-cratic as baseball players. Mike Freeman, USA TODAY, 22 June 2023 Finally, muscles that have a higher proportion of fast-twitch to slow-twitch fibers strain more readily. Nicole Wetsman, Popular Science, 24 May 2023 Anaerobic workouts, which use fast-twitch muscles, are better at stimulating EPOC, WH reported. Ashley Mateo, Women's Health, 20 June 2023 And careers are short anyway: Teenagers — with their fast-twitch reflexes — dominate. Hisako Ueno, New York Times, 2 Mar. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'fast-twitch.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1958, in the meaning defined above

Time Traveler
The first known use of fast-twitch was in 1958

Dictionary Entries Near fast-twitch

Cite this Entry

“Fast-twitch.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fast-twitch. Accessed 19 Apr. 2024.

Medical Definition

fast-twitch

adjective
: of, relating to, or being muscle fiber that contracts quickly especially during brief high-intensity physical activity requiring strength compare slow-twitch
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