Energy Balance and Body Weight Regulation Quiz from Nutritional Sciences Textboo...

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Questions and Answers

Which of the following describes energy balance?

  • The balance between carbohydrates and protein intake
  • The balance between energy intake and energy expenditure (correct)
  • The balance between vitamins and minerals intake
  • The balance between saturated and unsaturated fat intake

What are the components of energy expenditure?

  • Saturated, unsaturated, and trans fat metabolism
  • Vitamins, minerals, and water metabolism
  • Basal metabolic rate, physical activity, and thermic effect of food (correct)
  • Carbohydrate, protein, and fat metabolism

What is the difference between body weight and body composition?

  • Body weight refers to total mass, while body composition refers to the proportion of fat, muscle, and other tissues (correct)
  • Body weight and body composition are unrelated
  • Body weight and body composition are the same thing
  • Body weight refers to the proportion of fat, muscle, and other tissues, while body composition refers to total mass

What are some methods to assess body composition?

<p>Dual-energy X-ray absorptiometry (DXA), bioelectrical impedance analysis (BIA), and skinfold thickness measurements (D)</p> Signup and view all the answers

What is the relationship between body weight and diet-related chronic diseases?

<p>Higher body weight is associated with an increased risk of diet-related chronic diseases (D)</p> Signup and view all the answers

Which of the following factors can impact energy intake?

<p>Physical activity level (B)</p> Signup and view all the answers

What is the primary focus of Chapter 8 in the textbook?

<p>Energy balance and body weight regulation (B)</p> Signup and view all the answers

Which of the following is a component of energy expenditure?

<p>Basal metabolic rate (D)</p> Signup and view all the answers

What is the difference between body weight and body composition?

<p>Body weight refers to the total weight of a person, while body composition refers to the proportion of fat, muscle, and other tissues in the body (D)</p> Signup and view all the answers

What are some methods to assess body composition?

<p>Dual-energy X-ray absorptiometry (DXA) (C)</p> Signup and view all the answers

Which of the following is NOT a factor that can influence energy intake?

<p>Physical activity level (A)</p> Signup and view all the answers

Which of the following methods is commonly used to assess body composition?

<p>Bioelectrical impedance analysis (BIA) (C)</p> Signup and view all the answers

Which of the following is NOT a diet-related chronic disease associated with body weight?

<p>Osteoporosis (C)</p> Signup and view all the answers

What is the primary focus of Chapter 8 in the textbook?

<p>Energy balance and body weight regulation (B)</p> Signup and view all the answers

Which of the following is NOT a component of energy expenditure?

<p>Body composition (C)</p> Signup and view all the answers

Which of the following factors can impact energy intake?

<p>Physical activity level (B)</p> Signup and view all the answers

What is the primary focus of Chapter 8 in the textbook?

<p>Energy balance and body weight regulation (D)</p> Signup and view all the answers

Which of the following components of energy expenditure can be influenced by genetics?

<p>Basal metabolic rate (A)</p> Signup and view all the answers

Which of the following methods is commonly used to assess body composition?

<p>Skinfold thickness measurement (B)</p> Signup and view all the answers

What is the relationship between body weight and diet-related chronic diseases?

<p>Lower body weight is associated with an increased risk of chronic diseases (B)</p> Signup and view all the answers

Flashcards

Energy balance

The balance between the amount of energy consumed (intake) and the amount of energy used (expenditure) by the body.

Basal metabolic rate (BMR)

The energy used by the body at rest, accounting for basic life functions.

Physical activity

The energy expended through physical activities beyond basic life functions.

Thermic effect of food (TEF)

The energy used to digest and absorb food.

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Body weight

The total mass of a person's body.

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Body composition

The proportion of different tissues in the body, such as fat, muscle, bone, and water.

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Dual-energy X-ray absorptiometry (DXA)

A method to assess body composition using low-energy X-rays.

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Bioelectrical impedance analysis (BIA)

A method to assess body composition by measuring electrical resistance through the body.

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Skinfold thickness measurements

Measuring the thickness of skin folds at specific body locations to estimate body fat percentage.

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Relationship between body weight and chronic diseases

A higher body weight is associated with an increased risk of developing chronic diseases.

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Positive energy balance

A condition in which energy intake is greater than energy expenditure, leading to weight gain.

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Negative energy balance

A condition in which energy expenditure is greater than energy intake, leading to weight loss.

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Energy equilibrium

A state of energy balance where energy intake equals energy expenditure.

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Resting metabolic rate (RMR)

The amount of energy needed to maintain basic life functions at rest.

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Activity energy expenditure

The energy used during activities.

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Thermic effect of food (TEF)

The energy used to digest, absorb, transport, and store food.

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Maintenance energy requirement

The amount of energy needed to maintain a stable body weight.

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Healthy weight range

The range of healthy body weight for a specific individual.

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Weight management

A gradual, sustained weight loss process.

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Study Notes

Energy Balance and Body Composition

  • Energy balance refers to the balance between energy intake and energy expenditure
  • Components of energy expenditure:
    • Basal Metabolic Rate (BMR)
    • Thermic Effect of Food (TEF)
    • Thermic Effect of Activity (TEA)
    • Non-Exercise Activity Thermogenesis (NEAT)

Body Weight vs. Body Composition

  • Body weight refers to the total weight of the body
  • Body composition refers to the proportion of fat mass and fat-free mass

Assessing Body Composition

  • Methods to assess body composition:
    • Dual-Energy X-ray Absorptiometry (DXA)
    • Hydrostatic Weighing
    • Skinfold Measurements
    • Bioelectrical Impedance Analysis (BIA)

Energy Intake and Chronic Diseases

  • Factors that can impact energy intake:
    • Hormonal responses
    • Environmental factors
    • Genetics
    • Lifestyle factors
  • Body weight is associated with increased risk of diet-related chronic diseases:
    • Obesity
    • Type 2 Diabetes
    • Cardiovascular Disease

Chapter 8 Focus

  • Chapter 8 focuses on energy balance and body composition

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