Describe the muscle composition in a normal active person. How does this compare to athletes covering short, middle, and long durations of exercise?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
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Describe the muscle composition in a normal active person. How does this compare to athletes covering short, middle, and long durations of exercise?
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Step 1: Muscle composition:

Muscle composition in a typical active person varies based on factors such as genetics, training, and activity level. A general overview of muscle composition in such individuals, compared to athletes engaging in short, middle, and long-duration exercises, is as follows:

Normal Active Person:

  • Muscle Fiber Types: Muscle composition in moderately active individuals includes a mix of slow-twitch (Type I) and fast-twitch (Type II) muscle fibers, with a fairly balanced ratio.

  • Muscle Mass: Moderate muscle mass is typically distributed evenly throughout the body, developed through regular physical activity and exercise.

  • Muscle Endurance: These individuals possess reasonable muscle endurance, allowing them to engage in moderate-intensity activities for extended periods but with limitations compared to athletes.

  • Muscle Strength: Muscle strength in regular active individuals is typically within the average range for their age and gender, but it may not be optimized for specific activities.

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