Muscle Cells Are Not All the Same Are There Different Types of Muscle Fibers

Researchers refer to skeletal muscle cells as fibers because they are thin and long. In fact, some muscle fibers can extend the entire length of a muscle, such as in the biceps. That is several inches! In addition to their unique design, skeletal muscle cells are not all the same. In fact, humans are blessed with more than one type of skeletal muscle cell, which vary in performance and metabolic properties (Table 11.1). This allows our body to efficiently perform a broad range of activities or sports that vary in nature. This includes sports that are longer duration/lower intensity and short duration/higher intensity.

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