Muscle fiber composition refers to the distribution of different types of muscle fibers within skeletal muscles, primarily categorized into slow-twitch (Type I) and fast-twitch (Type II) fibers. This composition influences an individual's performance in various physical activities and their ability to adapt to different environmental stresses. The proportion of these fiber types can be affected by genetics, training, and acclimatization to specific conditions, playing a crucial role in how muscles respond and adapt to stressors like temperature or altitude.
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