Body Measurement Techniques and Calculations
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Body Measurement Techniques and Calculations

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Questions and Answers

What shape is the chamber that the person sits inside for the body volume estimation?

  • Rectangular
  • Circular
  • Egg-shaped (correct)
  • Cube-shaped
  • What physical principle does the machine use to estimate body volume?

  • Sound wave reflections
  • Temperature variations
  • Air pressure changes (correct)
  • Magnetic resonance
  • Which of the following describes the environment within the machine during body volume estimation?

  • It maintains a vacuum state.
  • It undergoes changes in air pressure. (correct)
  • It is at a constant high pressure.
  • It is filled with water.
  • In the body volume estimation process, what happens to the air pressure?

    <p>It fluctuates to estimate volume.</p> Signup and view all the answers

    What type of measurements does the machine primarily derive from air pressure changes?

    <p>Body volume measurements</p> Signup and view all the answers

    What is the primary purpose of skinfold measurements?

    <p>To estimate body fat percentage</p> Signup and view all the answers

    Which tools are primarily used to perform skinfold measurements?

    <p>Calipers</p> Signup and view all the answers

    At what specific locations is skinfold thickness measured?

    <p>At predetermined anatomical sites</p> Signup and view all the answers

    Why is skinfold measurement considered a practical method for body fat estimation?

    <p>It is very quick to perform</p> Signup and view all the answers

    What does a skinfold measurement involve?

    <p>Pinching the skin and measuring thickness</p> Signup and view all the answers

    What does WHR stand for in health measurements?

    <p>Waist-Hip Ratio</p> Signup and view all the answers

    How is the Waist-Hip Ratio (WHR) calculated?

    <p>Waist circumference / hip circumference</p> Signup and view all the answers

    What does BMI indicate about an individual?

    <p>It's an indicator of weight relative to height.</p> Signup and view all the answers

    Which of the following factors is NOT directly used to calculate BMI?

    <p>Age</p> Signup and view all the answers

    Which of the following statements about WHR is accurate?

    <p>A higher WHR indicates higher health risk.</p> Signup and view all the answers

    Study Notes

    Body Volume Measurement

    • An egg-shaped chamber is used to estimate body volume through air pressure changes.

    Skinfold Measurements

    • Body fat percentage is estimated by pinching skin at specific locations and measuring thickness with calipers.
    • Formula for Waist-Hip Ratio (WHR):
      WHR = waist circumference / hip circumference.

    Body Mass Index (BMI)

    • BMI serves as an indicator of weight in relation to height.

    Factors Affecting Basal Metabolic Rate (BMR)

    • Stress hormones increase BMR.
    • Environmental adjustments to temperature (heat or cold) can raise BMR.
    • Fasting or starvation reduces BMR.
    • Malnutrition also lowers BMR.

    Calculating Estimated Energy Requirement (EER)

    • EER formula for adult males:
      EER = 662 − [9.53 x age (y)] + PA x [15.91 x wt (kg) + 5.39 x ht (m)]
    • EER formula for adult females:
      EER = 354 − [6.91 x age (y)] + PA x [9.36 x wt (kg) + 726 x ht (m)]

    Physical Activity Levels and PA Factors

    • Sedentary: Men 1.0, Women 1.0
    • Low active: Men 1.11, Women 1.12
    • Active: Men 1.25, Women 1.27
    • Very active: Men 1.48, Women 1.45

    Example Calculation

    • To calculate EER for an active, 30-year-old man who is 1.8 m tall.

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    Description

    This quiz covers various methods for measuring body volume, body fat percentage, and calculating Body Mass Index (BMI) and Estimated Energy Requirement (EER). Additionally, it addresses factors affecting Basal Metabolic Rate (BMR) and the implications of physical activity levels. Test your knowledge on these essential health metrics!

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