Muscle cross-sectional area or Muscle CSA is the area of the cross section of a muscle perpendicular to its longitudinal dimension generally at it largest point. It is used to describe muscle contraction properties.
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“Self-esteem is the real magic wand that can form a child’s future. A child’s self-esteem affects every area of her existence, from friends she chooses, to how well she does academically in school, to what kind of job she gets, to even the person she chooses to marry.”
—Stephanie Martson (20th century)