Energy Balance and Daily Requirements
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Questions and Answers

What is the formula to determine energy balance?

  • Energy Balance= Energy In x Energy Out
  • Energy Balance = Energy Out + Weight
  • Energy Balance= Energy Out - Weight Change
  • Energy Balance=Energy In - Energy Out (correct)

Which factor does NOT influence an individual's daily calorie requirement?

  • Age
  • Level of physical activity
  • Favorite food choices (correct)
  • Weight

What percentage of daily energy requirement is attributed to basal metabolic rate?

  • 20-30%
  • 80-90%
  • 60-70% (correct)
  • 10-20%

What happens when energy intake consistently exceeds energy expenditure?

<p>Weight Gain (A)</p> Signup and view all the answers

What does a negative energy balance primarily indicate?

<p>Decreased body fat (A)</p> Signup and view all the answers

Which component accounts for approximately 20-30% of daily energy expenditure?

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

What is body composition primarily concerned with?

<p>Breakdown of body mass into components (D)</p> Signup and view all the answers

Which statement about positive energy balance is accurate?

<p>It usually results in weight gain, mainly as body fat. (A)</p> Signup and view all the answers

Caloric requirements for women are typically around how many calories per day?

<p>2000 Cal (A)</p> Signup and view all the answers

Everything we do uses energy?

<p>True (A)</p> Signup and view all the answers

Flashcards

Basal Metabolic Rate (BMR)

The amount of energy (calories) used by the body for basic functions like breathing, sleeping, and maintaining body temperature.

Digestive Energy Expenditure

The energy (calories) used for digesting and absorbing food.

Physical Activity Energy Expenditure

The energy (calories) used during physical activity, including exercise, walking, and everyday movements.

Energy Balance

The state where your body takes in the same amount of calories as it burns.

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Positive Energy Balance

When your calorie intake is greater than your calorie expenditure, leading to weight gain.

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Negative Energy Balance

When your calorie intake is less than your calorie expenditure, leading to weight loss.

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Body Composition

The breakdown of a person's body mass into components like muscle, fat, and bone.

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Energy Balance and Body Composition

The relationship between the calories you consume and the calories your body burns, directly impacting your body composition.

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Daily Energy Requirement

The total calories needed each day by an individual, based on factors like age, sex, activity level, and genetics.

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Calories

The energy in food and drinks that provides fuel for the body.

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Study Notes

Energy Balance Explained

  • Energy is used for all bodily functions, from breathing to playing sports. Different activities use varying amounts of energy.
  • "Energy in" refers to the calories consumed from food and drinks. "Energy out" refers to calories burned through activity.
  • Energy balance is calculated as: Energy In – Energy Out.
  • Positive Energy Balance: Consuming more calories than burned. Leads to weight gain, primarily from fat.
  • Negative Energy Balance: Consuming fewer calories than burned. Leads to weight loss, affecting both fat and muscle if exercise is not managed properly.
  • Neutral Energy Balance: Calorie intake equals calorie expenditure. Maintains stable weight.

Daily Energy Requirements

  • Basal Metabolic Rate (BMR): Accounts for 60-70% of daily energy needs. Driven by vital organ function.
  • Digestion and Absorption: Consumes 10% of daily energy.
  • Physical Activity: Accounts for 20-30% of daily energy needs.
  • The average daily energy requirement for women is roughly 2000 calories, and for men approximately 2500 calories. This varies based on individual factors.

Factors Influencing Energy Balance

  • Individual Factors: Genes, gender, age, lifestyle.
  • Activity Level: Frequency and intensity of physical activity significantly influence energy expenditure.
  • Diet Quality and Quantity: The type and amount of food consumed directly affects energy intake.
  • Basal Metabolic Rate (BMR): The number of calories burned while at rest, influenced by factors like muscle mass.
  • Body Composition: Muscle, fat, and bone influence the body's metabolic rate.
  • Genetics: Play a role in determining basal metabolic rate and how the body processes food.

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Description

This quiz explores the concepts of energy balance, including positive, negative, and neutral energy states. It also covers daily energy requirements, focusing on basal metabolic rate and physical activity. Test your understanding of how energy intake and expenditure affect body weight.

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