CFD 1010 Chapter Notes - Chapter 14: Adrenarche, Genital Stage, Bone Density
19 Dec 2018
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Phases of adolescence: early, 11 12 to 14 years, rapid pubertal change, middle, 14 to 16 years, pubertal changes nearly complete, late, 16 to 18 years, full adult appearance, assumption of adult roles. Improvement in gross-motor development with puberty: girls: slow, gradual gains, boys: dramatic spurt in strength, speed, endurance, boys" use of performance-enhancing drugs: creatine, anabolic steroids, androstenedione, decline in physical education and daily free time physical activity with age. Sexual maturation: primary sexual characteristics, maturation of reproductive organs, girls: menarche, boys: spermarche, secondary sexual characteristics, girls: breasts, boys: facial hair, voice change, both sexes: underarm, pubic hair, other visible parts of the body that signal sexual maturity. Individual differences in pubertal growth: timing of pubertal changes is influenced by, heredity, nutrition and exercise, geographical location, ses and ethnic group, early family experiences, secular trend toward earlier pubertal timing.
