Chapter 9Physical Activity and Fitness

Lesson 1The Benefits of Physical Activity

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physical activity

Any form of bodily movement that uses up energy

The smooth and effective working together of your muscles and bones

coordination

The feeling of stability and control over your body

balance

Units of heat that measure the energy available in foods

calories

physicalfitness

The ability to handle the physical demands of everyday life without becoming overly tired

Planned physical activity done regularly to build or maintain one’s fitness

exercise

Rhythmic, nonstop, moderate to vigorous activity that requires large amounts of oxygen

aerobicexercise

Intense physical activity that requires little oxygen but uses short bursts of energy

anaerobicexercise

In this lesson, you will learn to

identify the benefits of physical activity.

develop habits to improve your physical health.

describe various types of physical activities.

explain the importance of exercise to overall fitness.

Predicting

Examine the headings,

figures, and captions before

you read this lesson. Predict

what kinds of information you

think you will learn.

Headings in this Lesson

• Choosing an Active Lifestyle

• Why Is Physical Activity Important?

• Physical Activity and Fitness

• The Importance of Exercise

Choosing an Active Lifestyle

Health experts advise teens to get 60 minutes of physical activity on most days.

physical activity Any form of bodily movement that uses up energy

This activity can be done all at once or divided into 10- or 15-minute bursts.

Why Is Physical Activity Important?

Physical activity benefits each side

of the health triangle.

Physical Health

Mental/EmotionalHealth

Social Health

Why Is Physical Activity Important?

Physical activity improves coordination, improves balance, and burns calories.

coordination The smooth and effective working together of your muscles and bones

balance The feeling of stability and control over your body

calories Units of heat that measure the energy available in foods

PhysicalHealth

Why Is Physical Activity Important?

Physically active people are better able to handle the stress and challenges of everyday life.

Physically active people have higherself-esteem.

Mental/EmotionalHealth

Why Is Physical Activity Important?

Physical activity can help you meet new people.

Social Health

Physical Activity and Fitness

Physical activity is a key to physical fitness.

physical fitness The ability to handle the physical demands of everyday life without becoming overly tired

People who are physically fit have

enough energy to do the things they want

to do.

People who are physically fit have a

reserve of energy for times when their body

needs it.

People who are physically fit tend to

live longer and healthier lives.

The Importance of Exercise

While every physical activity works various muscles, exercise targets specific muscles.

exercise Planned physical activity done regularly to build or maintain one’s fitness

The Importance of Exercise

The two categories of exercise are:

Aerobic exercise

Anaerobic exercise

aerobic exercise Rhythmic, nonstop, moderate to vigorous activity that requires large amounts of oxygen

anaerobic exercise Intense physical activity that requires little oxygen but uses short bursts of energy

What I Learned

Vocabulary What is physical activity?

Lesson 1 Review

What I Learned

Recall What are some health benefits of becoming and staying physically active?

Lesson 1 Review

What I Learned

Identify What are the two types of exercise? Describe each of them.

Lesson 1 Review

Thinking Critically

Evaluate Evaluate your current activity level by noting how many minutes you are active in a typical day. Tell what steps, if any, you need to take to boost your current activity level.

Lesson 1 Review

Thinking Critically

Analyze Alex would like to become more physically active but only if he can avoid exercising. What advice would you give Alex?

Lesson 1 Review

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Chapter 9Physical Activity and Fitness

Lesson 1The Benefits ofPhysical Activity