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Body Composition • Female (puberty) : – Peak : 12,5 years (3-6 months) – ↑ ±18.3 lb (8.3 kg) per year. – 44% increase in lean body mass – 120% increase in body fat during puberty – ↑ ± 2.5 lb (1.14 kg) of body fat mass each year • Male – Peak : weight gain ~ linear growth ~muscle mass accumulation. – ↑ ± 20 lb (9 kg) per year – Body fat decreases ± 12% by the end of puberty
