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The lexicon of muscle-building, and training - Part 33

Muscle bellies

The muscle belly is the meaty part of a muscle, as distinct from the non-meaty tendons at the ends of the muscle.

Muscle control

The static contraction and relaxation of muscle groups, and the isolation of certain muscle groups. This includes the voluntary ability to make a given muscle shiver, wobble, and shake, without necessarily any flexion at any joints.

Muscle fibers

The contractile elements of muscle tissue, made up of subunits called myofibrils.

Muscle head

Someone whose life is dominated by bodybuilding.

Muscle memory

When a muscle has been well developed, then even after a long layoff and reduction in size, that muscle may be built up again with less difficulty and time. This phenomenon is termed muscle memory.

Muscle spasm

A sudden, involuntary (without intention) contraction of a muscle.

Muscle tone

Condition in which a muscle appears firm and in good condition.

Muscularity

Commonly considered to be the condition whereby the muscles are covered with little fat, so that the lines of the muscles show. There's ambivalence with this term. A 5-9 tall man of 150 pounds and minimal bodyfat has a different version of muscularity to a man of 5-9 and 190 pounds but with the same bodyfat percentage. Muscularity is the combination of hypertrophy and a low bodyfat percentage.

N

Natural, and naturally

Drug-free, as in training naturally.

Nautilus

Famous brand name of exercise machinery founded by Arthur Jones. Jones, 1926 to 2007, designed and built exercise machinery since the 1940s. He transformed exercise equipment by being the first to involve cams in its construction. A cam is a spiral-shaped wheel or pulley mounted on a rotating shaft. The first commercial sale of a Nautilus machine — a plate-loading pullover machine — was in late 1970, and Nautilus Sports/Medical Industries, Inc., was established in the same year. (Jones sold Nautilus in 1986, but Nautilus continued under new direction.) Jones' innovatory work spawned other exercise equipment companies.

Nautilus training principles developed along with Nautilus machinery, based primarily on hard and brief training, using a controlled rep speed free of sudden, jerky movements. The principles applied to any type of exercise equipment, but Jones believed that only when they were applied to Nautilus machinery would they produce the best results.

Nautilus double machines combined two specifically related exercises so that the trainee could apply the pre-exhaustion principle without changing machines or equipment.

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