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How to Use Growth Charts & Anthropometric Measures: BMR, BMI, WHR

Learn how to use growth charts and anthropometric measures to assess physical growth, calculate BMI, and apply outcomes to dietary planning. Presentation by Rhonda L. Barlow from CDC.gov.

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How to Use Growth Charts & Anthropometric Measures: BMR, BMI, WHR

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  1. How to Use Growth Charts & Anthropometric Measures: Basal Metabolic Rate, Body Mass Index, Waist-to-Hip Ratio Standard: FCS-FNW-1 Students will discuss basic nutrient requirements and their use in dietary planning. Element “C” Define a calorie, compare energy sources, compute Basal Metabolic Rate, Body Mass Index, and waist to hip ratio; apply outcomes to dietary planning and selection of nutrient dense foods. Presentation by Rhonda L. Barlow; source: CDC.gov

  2. Training Objectives At the end of this presentation, you will be able to: • Discuss the history of the current CDC Growth Charts, • Select the appropriate CDC Growth Chart (Grid) needed based on the age and gender of the person, • Use the CDC Growth Charts to plot anthropometric measures, • Interpret the data plotted to assess physical growth.

  3. History • Released = May 2000 • Developed by • National Center for Health Statistics (NCHS) • Distributed by • Centers for Disease Control and Prevention (CDC) • Used for all children 2 to 20 years of age • Screening Tool • Assess physical growth/nutritional status • Assess risk of underweight/overweight

  4. Why Revise 1977 NCHS Charts? Reference Population • Racially/Ethnically Diverse • Infants: Birth to 36 months • Children and Adolescents: 2 to 20 years • Breast- and formula-fed infants

  5. Use and Interpretation of Charts Step 1 = Obtain accurate weight and measures. Step 2 = Select appropriate growth chart. Step 3 = Record anthropometric data. Step 4 = Calculate Body Mass Index (BMI). Step 5 = Plot measurements. Step 6 = Interpret plotted measurements. As listed in “Use & Interpretation of the CDC Growth Charts,”

  6. Accurate Weight and Measures • Calibrate height and weight equipment. • Take off excess clothes and shoes • CDC Recommended Protocol • Stature http://www.cdc.gov/nccdphp/dnpa/bmi/meas-height.htm • Weight http://www.cdc.gov/nccdphp/dnpa/bmi/meas-weight.htm

  7. Measuring Stature Top of stadiometer • Stand against stadiometer. • Feet, bottom, shoulders and head against wall. • Head straight. • Bring measuring tool level with head. • Read height. Head stadiometer Wall Feet Floor

  8. Measuring Weight • “Zero” out scale. • Stand on scale. • Hands and arms straight down by side. • Waite for balance to record weight. • Read weight.

  9. Measuring Waist • Use sturdy/un-stretched measuring tape. • Minimal/thin clothing • Measure around smallest area or near navel. • Read measuring tape. • Record data.

  10. Measuring Hip • Use sturdy/un-stretched measuring tape. • Minimal/thin clothing • Measure around largest area of bottom. • Read measuring tape. • Record data.

  11. Select Appropriate Growth Chart • CDC growth charts available on Internet • www.cdc.gov/growthcharts • Clinical vs. individual growth charts

  12. Record Data • Student’s name • Record number = birth date • Mother’s/Father’s Stature = optional • Date = day measurements taken • Age = years, months, days • Weight = pounds • Stature = inches • BMI = manual calculation • Comments = any notable occurrence/observation

  13. BMI Calculation Formula Metric System • BMI = weight (kg)/[stature (cm)]2 x 10,000 {OR} English System • BMI = weight (lb) ÷ [stature (in)]2 x 703 Calculate as a continuous equation.

  14. Calculation Practice • Sam’s anthropometric measures weight = 37 pounds, 4 ounces height = 41½ inches Convert ounces and fractions to decimals. Answer 37.25lbs ÷ 41.5 ÷ 41.5 x 703 = 15.2

  15. Complete Your Growth Chart Fill in name, birth date in “Record #” Today’s date Age = pretend you are 18, 19, or 20 Record estimated weight and height Calculate your BMI based on above. Calculation Practice Decimal Conversions Table

  16. Plot Measurements • Find your age on horizontal axis. • Years = 3 months increments • Find appropriate measurement on vertical axis. (Weight, length, stature, head circumference, BMI) • Make a small dot where the two lines intersect.

  17. Visual Example of Plot

  18. Interpret Plotted Measurements • Determine the percentile rank. • Determine if the percentile rank suggests that the anthropometric index is indicative of nutritional risk based on the percentile cutoff value. • Compare today’s percentile rank with the rank from previous visits to identify any major shifts in the child’s growth pattern and the need for further assessment. • Anthropometric Index Percentile Cut-off Value Nutritional Status Indicator

  19. Percentile Rank Indicated Nutrition- Related Health Concern

  20. Growth Charts and BMI Resources For this presentation, “Use and Interpretation of the CDC Growth Charts.” Online, http://www.cdc.gov/nccdphp/dnpa/growthcharts/resources/growthchart.pdf. • For additional training materials related to the growth charts, • For tools related to the growth charts, • To download the growth charts, visit http://www.cdc.gov/growthcharts.

  21. Thank You for Your Interest THE END

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