Energy Requirements and Expenditure Quiz
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Questions and Answers

Which of the following factors does NOT influence energy needs?

  • Age
  • Gender
  • Physical activity level
  • Favorite food (correct)
  • What is the minimum energy required to sustain life known as?

  • Active metabolic rate
  • Total daily energy expenditure
  • Resting metabolic rate
  • Basal metabolic rate (correct)
  • Which condition is NOT necessary for measuring basal metabolic rate (BMR)?

  • The person must be awake
  • Ideal room temperature
  • Measuring during exercise (correct)
  • 10-12 hours after food intake
  • What does RMR represent in relation to BMR?

    <p>RMR is equal to BMR plus the thermic effect of food</p> Signup and view all the answers

    Which of the following indicates an increase in energy requirements?

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

    When should conditions for BMR measurement NOT include being ideally in a thermoneutral environment?

    <p>Post-exercise</p> Signup and view all the answers

    Which component makes up the total energy expenditure in resting metabolic rate (RMR)?

    <p>Thermic effect of food</p> Signup and view all the answers

    What role does Non-Exercise Activity Thermogenesis (NEAT) play in energy expenditure?

    <p>It encompasses any energy expended during non-exercise activities.</p> Signup and view all the answers

    Study Notes

    Energy Requirements

    • Energy requirement is the amount of energy needed to sustain life and maintain health.
    • Factors affecting energy needs include: age, gender, height, body weight, and physical activity level.
    • Increased energy needs are required during childhood, pregnancy, lactation, illness, injury, and stress.

    Components of Energy Expenditure

    • Energy expenditure refers to the amount of energy a person burns throughout the day.
    • There are three main components of energy expenditure:
      • Basal metabolic rate (BMR)
      • Thermic effect of food (TEF)
      • Non-exercise activity thermogenesis (NEAT)

    Basal Metabolic Rate (BMR)

    • BMR represents the minimum energy required to sustain life at rest.
    • Conditions for measuring BMR include:
      • Thermoneutral environment (26-30°C room temperature)
      • Before starting any physical activity (preferably when waking up from sleep)
      • 10-12 hours after food/drink/nicotine

    Resting Metabolic Rate (RMR)

    • RMR is measured at any time of the day at a moment of 'absolute rest'.
    • RMR is higher than BMR because it includes the thermic effect of food.
    • Conditions for measuring RMR are less strict than BMR.
    • RMR doesn't require a 12-hour fast after a meal.

    Body Weight

    • Body weight is an indicator of energy sufficiency or insufficiency.
    • Adequate macro-micro nutrients intake is crucial for optimal body weight management.

    Thermic Effect of Food (TEF)

    • TEF is the energy required to digest, absorb, and process food.
    • TEF contributes around 10% of total daily energy expenditure.

    Non-Exercise Activity Thermogenesis (NEAT)

    • NEAT refers to the energy expended in all activities outside of exercise.
    • It includes daily activities like walking, standing, fidgeting, and housework.
    • NEAT contributes around 15-30% of total daily energy expenditure.
    • Exercise is a controllable variable impacting energy expenditure, making NEAT a crucial factor in managing energy balance.

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    Description

    Test your knowledge on energy requirements essential for sustaining life and maintaining health. This quiz covers factors influencing energy needs, components of energy expenditure, and the details of basal and resting metabolic rates. Perfect for students interested in nutrition and health sciences.

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