Ch4 Study Guide

Myofibrils are made up of groups of muscle fibers.

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The development of large muscle fibers is referred to as atrophy.

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Slow-twitch muscle fibers fatigue more rapidly than fast-twitch muscle fibers.

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Power activities, such as sprinting, use predominantly fast-twitch muscle fibers.

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A person recruits more motor units when picking up a small weight than when picking up a large weight.

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Strength training can lessen bone loss in postmenopausal females.

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Strength training can improve glucose metabolism.

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Muscular strength can be assessed by measuring the maximum amount of weight a person can lift during one repetition.

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Increased muscular strength and endurance reduces one's risk of injury.

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Weight training increases how fast you burn calories because it increases muscle temperature.

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