Case Study I: Body Composition Assessment and WeightManagement
Susan is a secretary who has been sitting behind her desk atwork for the last 20 years. Over the years, she has graduallygained weight because of her sedentary lifestyle and changingmetabolism. She contacted you to assess her body composition and toplan a weight-management program. Her body composition andnutritional 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: 3,000kcal
Σ3SKF: 86 mm Activity level: light
BIA resistance: 610 ohms Dietary analysis: 40% carbohydrate,15% protein, 45% fat
BIA reactance: 70 ohms
1.Howmany grams of protein does this client consume per day? How doesthis value compare to the recommended daily protein need of thisclient?
2. If you place this client on a 1,500 kcal-per-day diet and sheexercises every day for 30 min at an intensity of 8.5 METs or 8.5kcal · kg-1 · hr-1, how long will it take her to reach her targetbody weight?
3.Are the SKF and BIA estimates of %BF within the expected rangefor prediction errors?
4. Select an appropriate BIA equation to calculate her FFM (kg) andto estimate her %BF using the BIA method.
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