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Introduction to Exercise Science for Fitness Professionals: The Physical Activity Guidelines for Americans

Introduction to Exercise Science for Fitness Professionals
The Physical Activity Guidelines for Americans
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table of contents
  1. Cover
  2. Title Page
  3. Copyright
  4. Table Of Contents
  5. Attribution and OER Revision Statement
  6. Chapter 1: Body Systems Review
    1. The Cardiovascular System
    2. The Nervous System
    3. Reflexes
    4. The Skeletal System
    5. Divisions of the Skeletal System
    6. Skeletal Muscle
    7. Divisions of the Skeletal Muscles
    8. Describing Motion and Movements
    9. Identify Anatomical Locations
  7. Chapter 2: Biomechanics and Human Movement
    1. The Basics of Biomechanics
    2. Inertia and Momentum
    3. Force
    4. Doing Work
    5. Body Levers
    6. Nervous System Control of Muscle Tension
    7. Muscle Tissue and Motion
  8. Chapter 3: Exercise Metabolism
    1. Introduction to Bioenergetics and Metabolism
    2. Overview of Metabolic Reactions
    3. Metabolic States of the Body
    4. The Cardiorespiratory System and Energy Production
    5. ATP in Living Systems
    6. Types of Muscle Fibers
    7. Exercise and Muscle Performance
    8. Nutrition, Performance, and Recovery
    9. Carbohydrate Metabolism
    10. Protein Metabolism
    11. Lipid Metabolism
  9. Chapter 4: Fitness Principles
    1. What are Physical Activity and Exercise?
    2. The Physical Activity Guidelines for Americans
    3. Components of Health-Related Fitness
    4. Principles of Adaptation and Stress
    5. FITT Principle
    6. Rest, Recovery, and Periodization
    7. Reversibility
    8. Training Volume
    9. Individual Differences
    10. Creating a Successful Fitness Plan
    11. Additional Safety Concerns
    12. Test Your Knowledge
  10. Chapter 5: Flexibility Training Principles
    1. What is Flexibility?
    2. Benefits of Flexibility and Stretching
    3. Improving Range of Motion
    4. Improving Flexibility
    5. Creating an Effective Stretching Program
    6. Assessing Your Flexibility
    7. Test Your Knowledge
  11. Chapter 6: Cardiorespiratory Training Principles
    1. What are the Cardiovascular and Respiratory Systems?
    2. Introduction: The Cardiovascular System
    3. Introduction: The Respiratory System
    4. The Process of Breathing and Respiratory Function
    5. Modifications to Breathing
    6. Changes in the CR System
    7. Measuring Heart Rate
    8. Measuring Intensity
    9. Cardiorespiratory Fitness Assessment
    10. Test Your Knowledge
  12. Chapter 7: Core and Balance Training Principles
    1. Lumbar Spine
    2. Abdomen
    3. The Pelvic Girdle
    4. Creating Movement at the Hip
    5. Balance
    6. Center of Gravity
    7. Supporting the Body
    8. Friction in Joints
    9. Human Stability
    10. Guidelines for Core and Balance Training
  13. Chapter 8: Plyometrics, Speed, Agility, and Quickness Training Principles
    1. Plyometric Exercises
    2. Variables of Plyometric Training
    3. Progressing a Plyometric Program
    4. Speed, Agility, and Quickness
    5. Speed
    6. Agility
    7. Quickness
  14. Chapter 9: Resistance Training Principles
    1. Resistance Exercise Programming
    2. Exercise Order
    3. Types of Resistance Training
    4. Basics of Form during Resistance Training
    5. Resistance Training Systems
    6. Resistance Training Conclusion
    7. Test Your Knowledge
  15. References
  16. Glossary
  17. MARC Record

29

The Physical Activity Guidelines for Americans

Amanda Shelton

In case it hasn’t been made clear yet, participation in regular physical activity is essential for optimizing an individual’s health and wellness. In order for someone to make progress specifically in their fitness, we need to first develop the foundation in their general health and that starts with physical activity. Now, we know what the difference between physical activity and exercise is but you may be asking yourself:

  • How much physical activity is enough?
  • What makes my physical activity “regular”?
  • What types of activities count toward my daily physical activity?
  • What other things might influence my health benefits?

The good news is: we have answers! The better news is: I won’t make you read this 118 page document to find them all! The U.S. Department of Health and Human Services and the U.S. Office of Disease Prevention and Health Promotion have done the work for us.

The Physical Activity Guidelines for Americans

First released in 2008, the Physical Activity Guideline for Americans has been developed as a resource for both health policy makers and health professionals to help guide and provide a structured foundation for physical activity and health educational programming. Since it’s first release, a mid-course report (published in 2013) and a second edition (published in 2018) have also been developed and updated as more current recommendations have been made available.

The current guidelines include more specific information for a variety of specific populations including:

  1. children and adolescents throughout different stages of development
  2. adults
  3. older adults
  4. adults with specific chronic health conditions (osteoarthritis, diabetes, hypertension, etc.)
  5. women who are pregnant or in the postpartum period

In addition to providing information for specific populations, the Physical Activity Guidelines for Americans also provides information on safe participation in an exercise program including equipment use, environmental considerations, and exercise progression.

Here are the Top 10 Things to Know About the Second Edition of the Physical Activity Guidelines for Americans

Key Guidelines for Adults from the Physical Activity Guidelines for Americans, 2nd edition

  • Minimize sedentary activity by moving more and sitting less throughout the day.
  • Some physical activity is always better than none.
  • For health benefits adults should look to participate in at least:

150 to 300 minutes per week of moderate-intensity aerobic physical activity

OR

75 to 150 minutes per week of vigorous-intensity aerobic physical activity

OR

Some equivalent combination of moderate- and vigorous- intensity activity

  • Preferably, this aerobic activity is spread throughout the week.
  • Additional benefits are seen with increased activity beyond the equivalent of 300 minutes per week of moderate-intensity activity.
  • In addition to aerobic activities, for additional health benefits adults should also participate in:
Muscle-strengthening activities of moderate or greater intensity that involve all major muscle groups on 2 or more days per week


U.S. Department of Health and Human Services. Physical Activity Guidelines for Americans, 2nd edition. Washington, DC: U.S. Department of Health and Human Services; 2018.

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Copyright © 2021

                                by Amanda Shelton

            Introduction to Exercise Science for Fitness Professionals by Amanda Shelton is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.
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