Podcast
Questions and Answers
What shape is the chamber that the person sits inside for the body volume estimation?
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?
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?
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?
In the body volume estimation process, what happens to the air pressure?
What type of measurements does the machine primarily derive from air pressure changes?
What type of measurements does the machine primarily derive from air pressure changes?
What is the primary purpose of skinfold measurements?
What is the primary purpose of skinfold measurements?
Which tools are primarily used to perform skinfold measurements?
Which tools are primarily used to perform skinfold measurements?
At what specific locations is skinfold thickness measured?
At what specific locations is skinfold thickness measured?
Why is skinfold measurement considered a practical method for body fat estimation?
Why is skinfold measurement considered a practical method for body fat estimation?
What does a skinfold measurement involve?
What does a skinfold measurement involve?
What does WHR stand for in health measurements?
What does WHR stand for in health measurements?
How is the Waist-Hip Ratio (WHR) calculated?
How is the Waist-Hip Ratio (WHR) calculated?
What does BMI indicate about an individual?
What does BMI indicate about an individual?
Which of the following factors is NOT directly used to calculate BMI?
Which of the following factors is NOT directly used to calculate BMI?
Which of the following statements about WHR is accurate?
Which of the following statements about WHR is accurate?
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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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