fast-twitch


Also found in: Medical.

fast-twitch

(făst′twĭch′)
adj.
Of or relating to skeletal muscle that is composed of strong, rapidly contracting fibers, adapted for high-intensity, low-endurance activities.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
White muscle: "Fast-twitch" muscles used for quick bursts of activity.
Sprinters with a higher proportion of fast-twitch fibres are at an advantage over other men without the same natural speed.
With mild exercise, only the slow-twitch muscle fibers are activated, not the fast-twitch muscle fibers.
Weighted bats wake up the slow-twitch system (and swinging a bat efficiently requires fast-twitch high performance)."
But I've found that, after lifting weights for so long and not getting in touch with my fast-twitch fibers, the snappiness that my body had [has gone].'
Some studies also suggest that males have a higher ratio of fast-twitch muscle fibers, along with a physiology that's more efficient at recruiting the muscles needed to jump.
Builds strength - Sprints are a type of anaerobic exercise, this means that they will trigger muscle building, increasing the size and strength of fast-twitch fibers.
The video gamers are esports' celebrated athletes, often living together in team houses with coaches and intense training schedules that exercise fast-twitch muscles in the fingers and hone game strategy skills.
Pedroia said that as he prepared to turn 33, he Authentic Brad Wing Jersey wasn't going to get stronger; he had to work on his fast-twitch muscles, his first-step quickness.
This way I'm able to train both fast-twitch and slow-twitch muscle fibers.
Because of the paucity of relevant research in the existing literature, in the present study, we used old rats to examine the effects of 10-weeks of low-intensity aerobic training combined with BFR on hypertrophy response and nAChRs in 2 types of muscles: fast-twitch (the extensor digitorum longus [EDL]) and slow-twitch (the soleus).