Distinguish between concentric, isometric and eccentric contractions, the physiology of the contraction, and what function it serves. Give examples of tasks that involve each type.

Human Anatomy & Physiology (11th Edition)
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ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
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Distinguish between concentric, isometric and eccentric contractions, the physiology of the contraction, and what function it serves. Give examples of tasks that involve each type.
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Through the cycling of actin and myosin cross-bridges, a muscle fibre produces tension. The muscle might grow, shrink, or stay the same when under strain. Although the word "contraction" connotes shrinking, it really refers to the creation of tension inside a muscle fibre when it's used in relation to the muscular system. The variations in muscle length during contractions distinguish a variety of muscular contractions.

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