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Are you a better sprinter or distance runner? ... Skeletal muscle is made up of bundles of individual muscle fibers called myocytes. Each myocyte contains many myofibrils, which are strands of proteins (actin and myosin) that can grab on to each other and pull. This shortens the muscle and causes muscle contraction.
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sportsmedicine.about.com/od/anatomyandphysiology/a/Musc...
sportsmedicine.about.com/od/anatomyandphysiology/a/MuscleFiberType.htm
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Muscle - Wikipedia, the free encyclopedia
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Muscle (from Latin musculus , diminutive of mus "mouse") is the contractile tissue of the body and is derived from the mesodermal layer of embryonic germ cells. Muscle cells contain contractile f...
en.wikipedia.org/wiki/Muscle
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TYPES OF MUSCLE FIBERS ... Humans have basically three different types of muscle fibers. Slow- twitch (ST or Type I) fibers are identified by a slow contraction time and a high resistance to fatigue. ... RECRUITMENT OF MUSCLE FIBERS...
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www.coachr.org/fiber.htm
www.coachr.org/fiber.htm
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Skeletal muscle is made up of thousands of cylindrical muscle fibers often running all the way from origin to insertion. The fibers are bound together by connective tissue through which run blood vessels and nerves.
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users.rcn.com/jkimball.ma.ultranet/BiologyPages/M/Muscl...
users.rcn.com/jkimball.ma.ultranet/BiologyPages/M/Muscles.html
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Striated muscle fibers appear with regularity in pituitary isografts transplanted beneath the kidney capsule. ... Striated muscle fibers appear with regularity in pituitary isografts transplanted beneath the kidney capsule. These differentiated striated muscle fibers consist of multinucleated cells resembling skeletal...
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www.medscape.com/medline/abstract/3439851
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Striated muscle contraction is powered by actin-activated myosin ATPase. ... Types IIa, IIx, and IIb myosin fibers produced higher isometric force than that of type I fibers. Despite the polyploidy of adult skeletal muscle fibers, the expression of fast or slow isoforms of TnT and TnI is tightly coupled.
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www.medscape.com/medline/abstract/16192301
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Every human body has an uncountable number of individual muscle fibers. A certain proportion of the fibers are fast twitch while the remaining fibers are slow twitch. The proportion is determined genetically before birth.
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www.betterbodz.com/kid/twitch.html
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To understand these changes, it's helpful to consider the types of muscle fibers and their characteristics. As noted in the figure on the previous page, muscle fibers come in two major forms: Type I and Type II.
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agrc.ucsf.edu/supplements/musculoskeletal/07_muscle_fib...
agrc.ucsf.edu/supplements/musculoskeletal/07_muscle_fibers.html
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