NUTR 2050 Study Guide - Final Guide: Lean Body Mass, Omega-3 Fatty Acid, Linear Function
8 Dec 2016
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Document Summary
Strong desire for independence influences food choices. Biological changes: increases in height and weight, sexual maturation, changes in body composition, accumulation of skeletal mass. Order of changes consistent, timing is not. Variations in reaching sexual maturity affect nutrient requirements. Sexual maturation (biological age) used to assess nutritional needs as opposed to chronological. Smr, tanner rating scale to assess degree of sexual maturation. 5 point scale: smr stage 1: pre-pubertal growth and development, smr stages 2-5: puberty, smr stage 5: sexual maturation concluded. Smr can be evaluated by a physician, or self-rated. Peak weight gains at same time as peak linear growth. Peak weight gains about 20 lbs per year. Peak weight gains coincide with the timing of peak linear growth and. Girls: muscle mass accumulation: breast development and pubic hair growth, menarche: onset of first menstrual period. 2-4 years after initial breast development (occurs as early as 8) Peak velocity of linear growth: 6-12 months prior (smr 3)
