 |  | Rudolph's Pediatrics Section 6. Principles of Adolescent Care > Part 1. Growth and Development > Chapter 63. Somatic Growth and DevelopmentCharles E. Irwin Jr. | |
Topics Discussed: adolescent care and gynecology; adolescent development; growth; Growth and Development.
Sections: Skeletal Growth, Alterations in Body Composition, Hematologic Development, Cardiorespiratory Changes, Neuroendocrine Development, Maturation of the Reproductive System: Overview, References.
Excerpt:"Adolescence comprises a period in the life cycle between childhood
and adulthood. Biological, psychological, social, environmental, and
legal changes influence the definitive onset and termination of
adolescence. Pubescence is often described as the onset of adolescence;
however, the mean age of onset of puberty in girls in the United States
varies by race and is earlier than in previous generations. The
mean age of onset for white girls is 9.7 years with a range of onset
from 7.8 to 11.6 years; and for black girls, 8.1 years with a range
of onset from 6.1 to 10.1 years. In boys, the onset of puberty has remained
stable at 11.4 years of age with a range of 9.5 to 13.51-6 (see Chapter 540). For purposes of discussion in
this section, adolescence in chronologic years is defined as the period
from 10 to 21 years...."
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