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Ch 3: Energy Balance & The Body

About This Chapter

Learn about the body's nutritional needs during activity. Get information on how foods and water provide energy and see what the caloric requirements are for an athlete.

Energy Balance and the Body - Chapter Summary

Watch these video lessons to learn about ways to boost nutrition and utilize diet for optimum physical performance. This chapter covers how the body manufactures energy from the nutrients it receives and how to calculate energy use.

Our instructors will explain what calories are, their function and the recommended daily calorie intake for an athlete in training. You will see how the body uses energy and find out what nutrients are needed for health. Other lessons look at the need for water during physical activity and issues resulting from dehydration. After finishing this chapter, you should be able to:

  • List the energy-yielding nutrients in carbohydrates, fats and proteins
  • Calculate the total calories in a food or a diet
  • Discuss how the body uses glucose for energy
  • Estimate the number of calories an athlete needs daily
  • See what athletes should eat in the time around a competition
  • Explain why adequate fluid consumption is vital during activity
  • Figure out the body's energy use during exercise

You'll find that our instructors make learning fun during these brief video lessons that you can watch on your own schedule. You can check what you've learned with the quizzes at the end of each lesson and use the timeline's jump feature to go back and review areas where you need more help. If you have additional questions, just contact your instructor for additional guidance.

10 Lessons in Chapter 3: Energy Balance & The Body
Test your knowledge with a 30-question chapter practice test
Energy-Yielding Nutrients: Carbohydrates, Fat & Protein

1. Energy-Yielding Nutrients: Carbohydrates, Fat & Protein

Carbohydrates, fats and proteins are referred to as the three energy-yielding nutrients because they provide your body with energy that is measured in calories. You'll also learn about another substance that can provide your body with calories, even though it is not a nutrient.

Calories: Definition, Purpose & Total Count

2. Calories: Definition, Purpose & Total Count

A calorie is a unit of measurement used to express energy. There are three nutrients that provide the body with calories: carbohydrates, proteins and fats. Learn about these macronutrients and recommendations for total energy intake: EER and AMDRs.

Energy Balance: How the Body Uses Energy

3. Energy Balance: How the Body Uses Energy

Energy balance is the relationship between the energy you take in and the energy you use. Learn how you take in energy from the foods you eat and how your body uses that energy for your basal metabolism, physical activity and food digestion.

How Energy-Containing Molecules Support Physical Activity

4. How Energy-Containing Molecules Support Physical Activity

Physical activity requires energy. Adenosine triphosphate (ATP) is the form of energy your body likes to use. In order to keep enjoying your physical activity, your body must continually make ATP. Learn how this is done both with and without oxygen.

Nutrients to Support Physical Activity

5. Nutrients to Support Physical Activity

It is important to stay well-nourished with carbohydrates, protein, fats and various vitamins and minerals during physical activity. Learn about these nutrients that support physical activity as well as the benefits of water during active times.

Nutrients and Calorie Needs in an Athlete's Training Diet

6. Nutrients and Calorie Needs in an Athlete's Training Diet

Whether you are a casual athlete or a competitive endurance athlete, your body needs the right amount and mix of nutrients to maximize performance. Learn about an athlete's calorie needs and overall nutrient requirements during training in this lesson.

Foods to Optimize Athletic Performance Before, During & After Competition

7. Foods to Optimize Athletic Performance Before, During & After Competition

Competitive athletes rely on good nutrition to give them an edge over their competition. Learn about carbohydrate loading as well as foods athletes use before, during and after competitions to enhance performance and endurance.

Water's Role as a Nutrient: Importance & Dietary Need

8. Water's Role as a Nutrient: Importance & Dietary Need

Water is an important thing for the entire world and the world inside your body. This lesson will point out why it's important for you and how much you need on a daily basis.

Staying Well Hydrated: The Importance of Fluids During Exercise

9. Staying Well Hydrated: The Importance of Fluids During Exercise

Staying well-hydrated during exercise will help prevent dehydration, as well as the heat-related illnesses: heat cramps, heat exhaustion and heat stroke. Learn how to hydrate with the right fluid and sodium balance to avoid hyponatremia in this lesson.

Determination of Energy Use by the Body

10. Determination of Energy Use by the Body

How much energy does your body use each day? Your body uses energy to perform the vital bodily functions that keep you alive and for any physical activities you engage in. Learn about the methods available to determine energy use by the body.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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