An average mortal has half slow-twitch and half fast-twitch.    From Wordnik.com.  [Science Of Speed] Reference

I do my cardio every day, but I'm no distance runner not a lot of slow-twitch muscle on me.    From Wordnik.com.  [In a Forwardly Direction] Reference

I have this slow-twitch muscles going on, but all they care about is speed but I care about the quality too.    From Wordnik.com.  [suffer] Reference

The best-known natural difference is the proportion of fast - and slow-twitch muscle fibers you're born with.    From Wordnik.com.  [Science Of Speed] Reference

In fact, these birds pack slow-twitch fibers into their legs and wings, but not into the white meat of their breasts.    From Wordnik.com.  [Analog Science Fiction and Fact]

East Africans, especially in a particular Kenyan valley, have more slow-twitch fibers and dominate in distance running.    From Wordnik.com.  [Academia, Harvard Law School, and freedom of speech] Reference

Whereas fast-twitch muscle cells burn sugar, slow-twitch cells primarily burn fat, which means they could help combat obesity.    From Wordnik.com.  [Just Sitting Back to Get in Shape:] Reference

In people, fast - and slow-twitch fibers are mixed throughout the body, but the proportions vary widely from person to person.    From Wordnik.com.  [Analog Science Fiction and Fact]

Previously, resveratrol, found in red wine, was shown to enable mice to run farther, but exactly how it works on slow-twitch muscles isn't clear.    From Wordnik.com.  [Just Sitting Back to Get in Shape:] Reference

slow-twitch fibers also contribute to balance, so figure skaters need both -- slow-twitch to stay standing during long spins, and fast-twitch for jumps.    From Wordnik.com.  [Science Of Speed] Reference

I was never going to be a sprinter -- all slow-twitch muscles -- so the only way I was gonna outrun somebody was to get a long lead and go for the marathon.    From Wordnik.com.  [Smart Martial Artists] Reference

Because they're crammed with dark-colored sub-cellular structures called mitochondria, slow-twitch fibers are the color of the "dark meat" of turkeys and chickens.    From Wordnik.com.  [Analog Science Fiction and Fact]

As a result, being born with a preponderance of fast-twitch fibers makes you a natural sprinter; slow-twitch fibers equip you for endurance events like cross-country skiing.    From Wordnik.com.  [Science Of Speed] Reference

Figure 28.16 Fast - and slow-twitch muscle fibers 28-42.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

The biopsies included both fast-twitch and slow-twitch muscle fibers.    From Wordnik.com.  [Health News from Medical News Today] Reference

The more they train their slow-twitch fibres, the larger they become.    From Wordnik.com.  [canada.com Top Stories] Reference

Marathoners probably have more slow-twitch fibres, which help endurance.    From Wordnik.com.  [canada.com Top Stories] Reference

He is a slow-twitch guy with long strides, and he doesn't get off blocks.    From Wordnik.com.  [SFGate: Top News Stories] Reference

Those in biathlon have muscle of primarily small fiber called slow-twitch.    From Wordnik.com.  [The Shad Plank] Reference

You, too, have a higher ratio of either fast - or slow-twitch muscle fiber.    From Wordnik.com.  [The Shad Plank] Reference

If you excel at endurance sports, your muscles are likely composed of more slow-twitch fiber.    From Wordnik.com.  [The Shad Plank] Reference

Muscles are made up of four types of fibers: two slow-twitch, one fast-twitch, and that other one.    From Wordnik.com.  [Biology News] Reference

But even the best training program in the world can't increase the number of fast-or slow-twitch fibres.    From Wordnik.com.  [canada.com Top Stories] Reference

From the muscle biopsies, the researchers isolated single muscle strands, both fast-twitch and slow-twitch.    From Wordnik.com.  [Health News from Medical News Today] Reference

Since back muscles are a higher percentage of slow-twitch fibers, they are designed more for endurance than for power.    From Wordnik.com.  [CITIZEN-TIMES.com - News] Reference

The skeletal muscle showed a marked predominance of slow-twitch, oxidative muscle fibers and mitochondrial proliferation.    From Wordnik.com.  [New England Journal of Medicine]

High-intensity training can boost the diameter of fast-twitch fibres and cause slow-twitch fibres to shrink from lack of use.    From Wordnik.com.  [canada.com Top Stories] Reference

So while an abundance of fast-or slow-twitch fibres is a unique gift, it needs nurturing to produce medal-winning performances.    From Wordnik.com.  [canada.com Top Stories] Reference

He could never change his muscles 'ratio of fast - to slow-twitch fiber enough to do so, no matter how long and hard he trained.    From Wordnik.com.  [The Shad Plank] Reference

Those with a high proportion of slow-twitch fibres will be more content on the treadmill, elliptical trainer or stationary bike.    From Wordnik.com.  [canada.com Top Stories] Reference

The researchers discovered that the astronauts had lost more than 40 percent of the power in the slow-twitch fibers of their calf muscles.    From Wordnik.com.  [Fore, right!] Reference

The researchers discovered that the astronauts had lost more than 40 per cent of the power in the slow-twitch fibers of their calf muscles.    From Wordnik.com.  [CTV BritishColumbiaHome] Reference

More specifically, it exhibits regional endothermy; the ability to generate heat in the viscera, brain, eyes and slow-twitch muscle fibres.    From Wordnik.com.  [ScienceBlogs Channel : Life Science] Reference

Eventually 'fast-twitch' and 'slow-twitch muscle fibres, responsible for explosive movements and sheer power respectively, will degenerate.    From Wordnik.com.  [National Business Review (NBR) New Zealand] Reference

And molecules that regulate the expression of genes may make athletes more energy efficient, or help create more slow-twitch muscle fibers.    From Wordnik.com.  [Scientific American] Reference

Endurance athletes such as marathoners can be ninety percent slow-twitch.).    From Wordnik.com.  [Analog Science Fiction and Fact]

28.16 Some muscle cells are fast - twitch and some are slow-twitch  Fast-Twitch Fibers .    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

(The opposite of fast-twitch fibers are slow-twitch fibers, which provide greater endurance, but lesser strength and speed.    From Wordnik.com.  [Analog Science Fiction and Fact]

Issue of slow-twitch versus fast-twitch muscle.    From Wordnik.com.  [EconTalk] Reference