Case Study I: Body Composition Assessment and Weight Management Susan is a secretary who has been sitting behind her desk at work for the last 20 years. Over the years, she has gradually gained weight because of her sedentary lifestyle and changing metabolism. She contacted you to assess her body composition and to plan a weight-management program. Her body composition and nutritional assessments resulted in the following data: Client: 45-year-old female %BF UWW = 34% Body weight: 160 lb (72.6 kg) Desired %BF: 30% Height: 65 in. (165.1 cm) Daily caloric intake: 3,000 kcal 3SKF: 86 mm Activity level: light BIA resistance: 610

questions

1) Estimate her %BF from this equation using the appropriate age-gender conversion formula.

2) Select an appropriate BIA equation to calculate her FFM (kg) and to estimate her %BF using the BIA method.

3) Are the SKF and BIA estimates of %BF within the expected range for prediction errors?

4) How many grams of protein does this client consume per day? How does this value compare to the recommended daily protein need of this client?

5) If you place this client on a 1,500 kcal-per-day diet and she exercises every day for 30 min at an intensity of 8.5 METs or 8.5 kcal kg-1 hr-1, how long will it take her to reach her target body weight?