Lecture 8 child and preadolescent student 2018.pptx

Lecture 8 child and preadolescent student 2018.pptx - Child...

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Child & Preadolescent Nutrition
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Assigned Readings Brown, J.E. 2014. “Child and Preadolescent Nutrition” Chap. 12 &13 in: Nutrition Through the Life Cycle . Canadian 24-Hour Movement Guidelines for Children and Youth. 2016. Downloaded from January 3, 2017.
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Overvie w Years between 6 and 12 are period of slow but steady growth Increases in food intake as a result of appetite Family has most influence on development of healthy lifestyle habits, but external influences over time Peers Family meal important Effects can last into adulthood independence & learn to make good food choices away from home May eat fewer times during day because of school After school snacks typical
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Definitions of the Life Cycle Stage Middle childhood→ b/w ages of 5 and 10 Preadolescence→ ages 9 to 11 years for girls; ages 10 to 12 years for boys “tweens” Both may also be termed “school-age”
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Normal Growth and Development Measurement techniques Growth velocity ↓ during the school-age years Should continue to monitor growth periodically Weight and height should be plotted on the appropriate growth chart
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Nutrition Assessment of Children Client history data and ABCD findings Client history data: medical history, etc. Anthropometric & body composition data Biochemical data Clinical / physical examination data Dietary assessment data
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Normal Growth and Development World Health Organization – Canada Growth charts Tools to monitor the growth of a child for: Weight-for-age Stature-for-age BMI-for-age BMI can be used with kids over 2 years of age to determine if they are at risk for underweight, overweight or obesity
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BMI for Children BMI-for-age is an effective screening tool; not a diagnostic tool For children (2-20 years of age), BMI is age and gender specific, so BMI-for-age & sex is the measure used Amount of body fat changes with age “BMI rebound” ~ 6-6.3 years Amount of body fat differs between girls and boys Boys have more lean tissue BMI-for-age should be used for all children after age 10 (best measure & current recommendation)
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Normal Growth and Development
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Body Mass index-for-age percentiles Boys 2-19 yr A 10 yr old boy with a BMI of 23 would be in the obese category > 97%ile A 10 yr old boy with a BMI of 21 would be In the overweight category between 85-97%iles A 10 yr old boy with BMI of 18 is in healthy category 5-85%ile A 10 yr old boy with a BMI of 13 is in the unhealthy category < 3 %ile
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Anthropometric & Body Composition Data Fat fold measurements Wt and ht (length/stature) measures ~Birth, 2, 4, 6, 9, 12, 18, 24 mos., then yearly Growth Charts Monitor pattern of growth over time Interpretation of length/stature/Ht-for-age < 3 rd %tile Stunting or shortness Stunting can result from long-term malnutrition
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Growth data Wt and length/stature measures Birth, 1, 2, 4, 6, 9, 12, 18, 24, 36 mos.
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