Why should I exercise?
Exercise has many benefits. It can:
- Increase your strength and energy
- Lift your mood when you feel down
- Make your body look better and more toned
- Help you maintain a healthy weight or lose excess body fat
- Help you sleep
- Improve how you feel about yourself
- Help keep your bones strong throughout your lifetime
- Prevent diabetes, high blood pressure and heart disease.
How much should I exercise?
You should try to exercise at a moderate level for at least 60
minutes most days of the week. In addition to being active
everyday, it is recommended that you spend 20 to 30 minutes of your
exercise time doing vigorous aerobic activity at least 3 times a
week. Starting slow and building up to this is just fine. Every
little bit counts when you're just beginning, so take time for a
short walk or bike ride a few times during the day. It is important
to pay attention to how your body feels, such as getting really
tired, out of breath or being too sore the next day. If you are
unsure, ask your health care provider, coach, or physical education
teacher. Always, drink water before, during and after exercise.
What kind of exercise is best for me?
There are 3 main types of exercise: aerobic exercise, strength
training, and stretching. All are important for good health.
Aerobic exercise
Aerobic exercise works the heart and gets your muscles to use
more oxygen. After a time, your heart will get stronger and
able to deliver oxygen to your muscles more easily. This is
what is known as "getting into shape." If you need to, start
gradually. If weight reduction is your goal, it is important to
focus on doing some type of aerobic activity most days, plus adding
a few days of strength training.
Most school sports are aerobic and will give you a chance to
get plenty of exercise several times a week. Tennis, hockey,
rowing, soccer, basketball, volleyball and cross-country
running are all good examples of aerobic sports. Other
aerobic exercises you can do on your own include:
- Walking
- Jogging
- Cross-country skiing
- Biking
- In-line skating
- Skateboarding
- Swimming
- Hiking and climbing
- Dancing
- Using gym equipment such as a treadmill, stair-stepper,
stationary bike, and elliptical trainer
- Aerobic exercise classes.
Strength Training
There are lots of benefits to strengthening your muscles. When
you work your muscles, they become stronger and able to work
longer without getting tired. Stomach muscles support the
back, so strengthening this area is really important. One of the
greatest benefits of strength training is that it helps you burn
more energy when you are at rest. Muscle mass burns more calories
than fat so as your muscle increases so does your ability to burn
calories. There are lots of options:
- Lifting weights (make sure you are trained to lift right to
avoid injury)
- Using your body for resistance (push-ups, pull-ups, lunges,
squats, sit-ups and crunches)
- Interval training where you switch between exercising hard and
then resting. For example, running hard for a short time and
then walking then repeating the exercise again.
Stretching
Being flexible makes it easier to do many activities and also
decreases risk for getting hurt. If you stretch before and after
exercise, you will not be as sore. You can do simple stretches
before and after sports or other aerobic activities. There are
also other activities that improve your flexibility such as:
- Yoga
- Dance
- Pilates (an exercise routine that builds strength and
flexibility).
How do I choose the exercise that is best for me?
If you haven't been active lately, your goal is just to get
started doing something physical, that you enjoy, every day. Give
your lungs, heart, and muscles time to adjust by starting
gradually. Think about your style. Do you like organized
activities or exercising on your own? Do you need someone or
something to help motivate you? If so, sign up for a class or
workout with a friend or family member. If you choose something
you don't really like, you won't stick with it. To avoid getting
burned out, do a variety of activities.
What if I'm not comfortable exercising in public?
If you would like to exercise, but would rather work on getting in
shape in private there are some good options. You can:
- Buy exercise equipment for your home.
- Take private lessons from a personal trainer at a health club or
recreation center.
- Use exercise videos, DVDs, and CDs. Try to choose those that
feature instructors with degrees in fitness or exercise
physiology. Not all instructors put safety first. See
http://www.collagevideo.com/ for information about ordering an
exercise video catalog. This catalog features most of the
selections that are available today and includes reviews featuring
information about the instructor and the appropriate level of
fitness.
If you are severely overweight or you have other health conditions
such as high blood pressure, be sure to speak with your parents
and health care provider before starting an exercise program.
What else can I do to improve my fitness?
Keep track of the time you spend watching television, chatting on
the computer or playing video games. These activities are all fun
and you don't have to give them up, but don't let them take the
place of physical activities. Also try to limit the sweets, sodas
and high-fat fast foods you eat. Making healthier food choices can
really improve your sports performance and help to maintain a
healthy weight.


Disclaimer: This content is reviewed periodically and is subject to
change as new health information becomes available. The
information provided is intended to be informative and educational and is not a
replacement for professional medical evaluation, advice, diagnosis or
treatment by a healthcare professional.
HIA File CHL3792F.HTM Release 9.0/2006. Copyright © 2006 McKesson Corporation and/or one of its subdiaries. All Rights Reserved.
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