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    Childhood Obesity: BMI and BMR formulas

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    Tony is a 9-year-old male whose favorite activity is his video game system. He loves to come home from school and start playing right away. He will usually grab a large bag of potato chips and a soda from the refrigerator and snack while he plays. He will take a break for dinner, but then he heads right back to the game. According to his growth thus far, Tony has always plotted around the 50th percentile for weight and height for age, but lately he has been gaining weight and is now greater than the 95th percentile for weight (Height 52," Weight 85 pounds). His father is not concerned, reporting that he was the same way at his age but "thinned out" as he got older.
    1. What assessment tools would you use to track Tony's growth?
    2. Based on what you know about Tony, do you consider him underweight, normal weight, or overweight?
    3. On average, how many calories would Tony need?
    4. Describe at least one factor that may influence Tony's diet.
    5. What are two recommendations you would tell Tony to decrease the risk of nutrient deficiency based at his current percentile of 95th? How would your recommendations change if he was at the 3rd percentile? Provide at least one recommendation to decrease the risk of nutrient deficiency in this circumstance.

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    Solution Preview

    First, you need to know the "normal" ranges for a 9-yo boy in order to determine if he is within normal range for height-weight. Normal BMI for boys 10 years old is 14.2-19.4, with anything below the 5th percentile being underweight and anything over 85th percentile being considered overweight. While BMI is not the only calculation considered, it is a starting point to determine why that person is where they are on the growth chart. Taking into consideration their physical activity, genetics, and health, you then assess the nutritional and caloric needs.
    The formula for calculating this ...

    Solution Summary

    This solution provides the formulas needed to calculate BMI and BMR for children, along with pointers on assessing nutritional needs and physical activity.