Chapter 3Physical Activityand Fitness
Lesson 1Becoming Physically Fit
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Teacher’s notes are available in the notes section of this presentation.
physical activity
fitness
exercise
endurance
Any movement that makes the body useextra energy
Being able to handle physical work and play each day without getting tired
Planned physical activity done regularly to build or maintain one’s fitness
The ability to perform difficult physical activity without getting over tired
muscle endurance
cardiovascular endurance
strength
The ability of a muscle to repeatedly use force over a period of time
The measure of how well your heart and lungs work during moderate-to-vigorous physical activity or exercise
The ability of your muscles to use force
flexibility
aerobic exercise
The ability to move joints fully and easily through a full range of motion
Rhythmic, moderate-to-vigorous activity that uses large amounts of oxygen and works the heart and lungs
anaerobic exercise
body composition
Intense physical activity that builds muscle but does not use large amounts of oxygen
Proportions of fat, bone, muscle, and fluid that make up body weight
In this lesson, you will be able to
discuss the benefits of physical activity.
explain how to increase your strength, endurance, and flexibility.
apply advocacy skills to tell others about the benefits of fitness.
recognize the influence of body composition on fitness.
measure your fitness using fitness tests.
Skimming
Look over the lesson
headings. Write a sentence
or two describing what you
think the lesson will contain.
Lesson Headings
• Physical Activity and Your Health• Benefits of Physical Activity• Elements of Physical Fitness• Types of Exercise• Effects of Body Composition on
Fitness• Measuring Your Fitness
Physical Activity and Your Health
Physical activity helps teens’ health in many ways.
physical activity Any movement that makes your body use extra energy
Physical Activity and Your Health
Fitness can be achieved through exercise.
exercise Planned physical activity done regularly to build or maintain one’s fitness
fitness Being able to handle physical work and play each day without getting overly tired
Benefits of Physical Activity
Benefits of being physically fit include:
Building and maintaining bones and muscles
Managing body weight
Maintaining a healthy blood pressure
Maintaining heart and lung health
Reducing stress
Increasing social health
Your Responsibility to Yourself
When you do what is best for your wellness, you are
taking responsibility for your personal health behaviors.
This shows you are mature. Others will trust you to make
the right choices to care for yourself.
Elements of Physical Fitness
Five Elements of Physical Fitness
MuscleEndurance
CardiovascularEndurance
Strength
FlexibilityBody
Composition
Endurance
Building overall endurance and muscle endurance can be achieved by spending more time doing a chosen exercise or physical activity.
endurance The ability to perform difficult physical activity without getting overly tired
muscle endurance The ability of a muscle to repeatedly use force over a period of time
Endurance
You can build cardiovascular endurance by doing aerobic exercises for 30 minutes at least three times a week.
cardiovascular endurance The measure of how well your heart and lungs work during moderate-to-vigorous physical activity or exercise
Strength
The amount of work your muscles can do at a given time is a measure of your strength.
strength The ability of your muscles to use force
By increasing strength, you lessen the chances of getting lower back pain and hurting yourself when lifting things.
Flexibility
You can increase your flexibility with regular, gentle stretches.
flexibility The ability to move joints fully and easily through a full range of motion
When you are flexible, you feel more comfortable and will be less likely to injure yourself when you exercise or play.
Types of Exercise
Most physical activities and exercises can be described as aerobic exercise or anaerobic exercise.
aerobic exercise Rhythmic, moderate-to-vigorous activity that uses large amounts of oxygen and works the heart and lungs
anaerobic exercise Intense physical activity that builds muscle but does not use large amounts of oxygen
Effects of Body Composition on Fitness
Physical fitness is tied to body composition.
body composition The proportions of fat, bone, muscle, and fluid that make up your body weight
If you exercise regularly, your body can gain muscle and lose fat.
Measuring Your Fitness
Common Fitness Tests
Balance Flexibility StrengthCardiovascular
Endurance
What I Learned
Restate Name three ways that physical activity canbenefit mental/emotional health.
Lesson 1 Review
Thinking Critically
Infer Why might stretching help a person performbetter at a sport?
Lesson 1 Review
Thinking Critically
Evaluate In a brief paragraph, describe your ownthoughts and feelings about the benefits of beingphysically fit.
Lesson 1 Review
Chapter 3Physical Activityand Fitness
Lesson 1Becoming Physically Fit
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