Chapter_4rev

Chapter_4rev - Physical Development and Health...

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Unformatted text preview: Physical Development and Health Cephalocaudal pattern- fastest growth always occurs at the top and work its way down to the bottom Proximodistal pattern- growth that starts at the center of the body and moves its way to the extremities Lose 5-7% of weight after birth 5-6 oz a week the first month Triple weight by age 1 Grow 1 inch a month first year Age 2 ◦ 26-32 pounds ◦ 32 to 35 inches tall Trunks of body lengthen Body fat declines Girls more fatty tissue Boys more muscle Environmental influences ◦ Ethnic Origin: African American ◦ Nutrition and Smoking ◦ Urban, middle SES, and first-born 6-11 years old Slow consistent growth 2-3 inches taller each year Weight increase Fat decreases, muscle increases Change in body proportions Head and waist circumference, and leg length decrease in relation to total height Rapid physical maturation involving hormonal and bodily changes that take place in early adolescence Average age of puberty for girls lowers every year ◦ Girls in US start puberty 1 year before European Americans Improved health and nutrition Influences age of onset: ◦ Heredity ◦ Hormones ◦ Weight and body fat Weight and body fat Higher weight, earlier puberty Effects of: ◦ Eating disorders ◦ Malnutrition ◦ Exercise/Sports Gender differences Girls ◦ Less happy...
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This note was uploaded on 09/08/2011 for the course PSY 2301 taught by Professor T during the Spring '11 term at Texas Tech.

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Chapter_4rev - Physical Development and Health...

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