Why Do Muscles Contract?

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There are three main types of muscles skeletal, cardiac, and smooth muscles. Most of them contract every time we move. Many muscles must contract to move the bone they are attached to or to provide resistance. In this essay I will talk about the different ways muscles contract.
Isometric muscle contractions occur when the muscle contracts but there is no movement. For example when someone holding a wall sit position. Isotonic muscle contractions result in movement. There are two types of isotonic muscle contraction, Concentric and Eccentric. Concentric muscle contractions are the most common form of contraction. These occur when the muscle shortens in length in order to make the bone move. These contractions occur when the body is working against
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