Lecture 3 - Physical and Cognitive Development in Middle...

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Physical and Cognitive Development in Middle Childhood Lecture 9 February 13, 2012
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Overview Physical development – focus on obesity Trends over the last 20 years Factors that may account for increased rates of obesity Consequences of obesity Video Middle childhood cognition Piaget’s concrete operational stage Vygotsky’s sociocultural theory Information processing theory ADHD
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The Obesity Epidemic Definitions of obesity 20% higher than ideal weight Adults: Overweight=BMI of 25-29.9; Obese = BMI>30 Chn: BMI>85th age-sex specific percentile compared to the norms from the first measure conducted = overweight; BMI>95th percentile=obese Increasing prevalence across the nation Obesity is increasing rapidly among chn, youth, and adults in the US 65% of US adults are either overweight or obese 32% of US children/teens are overweight; 11% are obese Since 1980, number of overweight children has doubled; number of overweight teens has tripled Increases found in all regions of the country, urban/rural, both sexes, all ethnic groups, rich and poor Higher among Latino and African American Families and low SES
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Factors Contributing to Rise in Obesity Food producers and fast food industry proliferation of fast food restaurants Soda and sugary foods in schools super sizing of portions Portion sizes in Paris are 25% less than those in Phila. A Pennsylvania restaurant serves a 15 pound burger.
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Factors Contributing to Rise in Obesity cont.
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Lecture 3 - Physical and Cognitive Development in Middle...

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