Physical activity increases the amount of energy you use. Although
most weight-loss programs incorporate an exercise program—such as jogging or
biking—you can also use more energy by changing some everyday activities, such
as washing your car yourself instead of going to a car wash. Participating in
social activities that increase activity, such as joining a gardening club or
dancing, also increases your energy use. Strength training is also an important
part of a weight-loss program.
Always have a medical evaluation before starting any new physical
activity. If you have chest pain or dizziness during any physical activity,
stop and call your health professional.
If you have not exercised much in the past, your health professional
might first recommend a small amount of daily aerobic activity. For the
long-term, experts advise doing
moderate activity for at least 30 minutes a day, 5
days a week or more, or doing
vigorous activity for at least 20 minutes a day, 3
days a week or more.1 But for weight loss and
maintaining weight loss, you need 60 to 90 minutes of physical activity per
day.2
Exercise programs
Aerobic exercise is used in weight-loss programs. It burns calories
and increases the amount of oxygen that is delivered to your muscles. Any
activity that raises your heart rate and keeps it up for an extended period of
time will improve your aerobic conditioning. You can exercise at one time or
throughout the day, whichever is most convenient. For example, you could walk
for 10 minutes at one time and garden for 20 minutes later on, which would give
you 30 minutes of activity for the day.
Examples of aerobic exercise include:
- Brisk walking, jogging, walking on a treadmill,
or riding a stationary
bike.
- Biking.
- Swimming.
- Tennis or
racquetball.
- Rowing.
- Skating or skiing.
Aerobic activities
Daily activities can be aerobic. Activities that increase your heart
rate include:
- Washing and waxing a car.
- Raking
leaves or shovelling snow. (Don't use a blower!)
- Washing windows or
floors.
- Gardening.
- Pushing a child in a
stroller.
Everyday choices
You can also "sneak" in activity throughout your day.
- Walk up the stairs instead of taking the
elevator.
- If you need to run an errand within a few blocks,
walk.
- Park the car some distance from your destination so you have
to walk farther.
- If you watch television, get up and change the
channels instead of using the remote control.
When choosing an exercise program or physical activity, pick
something you like. Don't pick what looks easiest, what your friends do, or
what the fad is. If you enjoy your activity, it will be easier to do and you
will be more likely to stick with it. Also consider whether you would rather
have convenience or companionship while being physically active. Some people
want something they can do anytime with little hassle; examples include a
treadmill in the home, going for a walk in the neighbourhood, or gardening.
Others might prefer companionship, which means scheduling times with others.
Very often when you share your activity with someone, you keep each other on
schedule.
Exercising when you have other health
problems
People who are overweight or
obese often have other health problems and may be
afraid or find it difficult to exercise. These people can still exercise
safely.
- Talk with your health professional or a
physiotherapist about how your condition limits your exercise and bothers you
while exercising. He or she will be able to help you find other types of
exercise.
- If you have
coronary artery disease, you may need someone to
monitor your exercise. Many hospitals have special programs in this case. For
more information, see the topic Cardiac Rehabilitation.
- If you have
arthritis or another joint disease, non–weight-bearing
exercises may be easier and less painful. These include swimming, water
aerobics, and cycling.
For more information on physical activity and fitness, see the topic
Fitness.