Asthma Exercise for Life
by: Scott Larson
It is estimated
that 17 million people in America have asthma, with 5
million being under the age of 18. Asthma, which
is Greek for “to pant”, is a chronic lung disease that
triggers episodes of coughing, wheezing and shortness of
breath which is caused by an inflammation of the lungs
that result in the airways to narrow. It can take place at any age, and appears to
have a genetic link. Although its symptoms are
controllable, it is not thought to be curable.
Triggers for asthma can vary from one person to the other and
may include allergens (dust, smoke, molds, pollens, and animal
dander), chemical agents (cleaning products, perfumes, etc.),
emotional stress and exercise. The best way to halt asthma
attacks is to prevent them in the first place. Simple steps
include controlling and managing house dust mites, animal
related allergens, tobacco smoke, cockroach allergen, mold and
other fungal spores and pollens, smoke from wood burning
stoves, colds and viral respiratory infection, and physical
activity or exercise induced asthma (EIA).
It was once thought that physical activity should be
discouraged if you had asthma, but today this is not the case.
With the appropriate precautions, exercise is not only
considered safe, but it is frequently promoted as part of a
sound respiratory therapeutic program. There are many ways to
help avoid exercise induced asthma. If you have asthma, check
with your doctor before you begin an exercise program and get a
complete physical with a review of your current medicine
therapy.
Some guidelines:
Warm up with 10 minutes or so of low intensity walking and
gentle stretching and before your workout.
Avoid exercising in cold, dry air or in areas where air
pollution or allergens are high. If you must exercise in a cold
environment use a scarf or face mask to trap the warm moist air
and prevent cold dry air from penetrating deep into your
lungs.
After exercise, be sure to include a 10 to 15 minute cool down
period.
Asthma attacks place significant stress on the body. Fatigue is
common, making it even more difficult to breath. This is why a
gradual progression with exercise is important. Developing
cardiorespiratory fitness will make you feel less fatigued and
will help lung function.
Different types of exercise may effect symptoms of asthma. For
example, outdoor running is often worse than indoor running on
a treadmill. To improve cardiorespiratory fitness, begin with
20 (or less) of low intensity aerobic activity 3 times per
week, eventually building to five. Exercise in 10 minute
intervals with a short rest in between. Use a cross training
method applying different exercise modalities (i.e. treadmill,
bike, rower). Swimming rarely causes EIA due to the warm moist
air (however swimming in chlorinated pools may be a trigger for
some).
Exercise intensity is also related to EIA and should be kept at
a moderate level. You should be able to talk in short sentences
throughout your workout.
Long duration exercise causes more exercise induced asthma then
shorter bouts. Sports that promote stop and go activities such
as tennis, volleyball & resistance training may cause less
EIA in some individuals.
Keep your exercise up beat by making the most of your workouts,
and avoid becoming bored or stressed, pick activities that you
enjoy and can do.
If a medication is prescribed you can use it before exercise
and monitor peak air flow with a peak flow meter. Your inhaler
can be used during exercise also if symptoms arise. Talk to
your doctor about how to use your inhaler with exercise. If
notwithstanding your efforts, symptoms develop and persist,
stop the activity and inform your doctor. Your doctor may
recommend simple changes in medication that make the
difference.
Drink plenty of fluids before, during and after exercise.
Dehydration causes airways in the lungs to constrict, and makes
breathing more difficult. Studies have shown that this is true
even if the individual is not exercising. Thirst is a poor
indicator of when to rehydrate, by the time you sense thirst
your body is already lacking essential fluids.
Avoid alcohol and caffeinated beverages such as coffee, tea or
sodas; these are diuretics, which dehydrate you even
further.
Exercise-related breathing problems also occur in individuals
who have not been diagnosed with asthma. People with allergies
may experience many of the same symptoms, as exercise causes
increased oxygen demand, breathing rate, and cooling and drying
of the airways.
Although right now there is no cure for asthma, it can be
managed with proper treatment and lifestyle management.
Controlling symptoms may include using an inhaler or other
medicine, as well as identifying and avoiding factors that may
trigger an episode. Educating yourself as much as you can about
asthma and your response to exercise gives you improved control
and a greater chance of living an active life.
About The Author
Scott is an exercise physiologist and has worked in
cardiopulmonary rehabilitation for many years. He has also
managed large fitness centers and is past director of the
Flushing YMCA in New York City. He is currently a Wellness
Consultant with American LifeWay Wellness.
Website: www.americanlifeway.org/
slarson@americanlifeway.org
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