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DID YOU KNOW
70-80% of those people with asthma and 30-40% of individuals with
allergies have Exercise-Induced Asthma.
"All violent exercise makes the asthmatic to breathe short"
-Sir John Floyer, 17th Century
DID YOU KNOW
Children with asthma have similar exercise capacity as other children.
(Boas & Danduran 1998, 1999)
DID YOU KNOW
Many of today’s world class athletes suffer from exercise-induced asthma
including Olympic gold medallist swimmers Amy Van Dyken and Tom Dolan, track
and field star Jackie Joyner Kersee, and diver Greg Louganis.
DID YOU KNOW
Failure to treat exercise-induced asthma may result in lower self-esteem
as well as a loss of competitive edge, particularly in high-performance
athletes at a sensitive time in their careers.
DID YOU KNOW
A recent study suggests that exercise may alter the body’s defense
systems in children. In fact, moderate physical activity has been proposed
to enhance the body’s ability to fight infection. (Boas, 1995) |
EXERCISE-INDUCED ASTHMA
Does your child:
- Become short of breath with physical activity?
- Usually cough during or after running?
- Experience chest pain with exercise?
- Have trouble keeping up with his/her friends during sports?
- Have a history of asthma in his/her family?
If
you answered YES to any of these questions, your child may have
exercise-induced asthma. Exercise-induced asthma or EIA is a common ailment
that affects many of the over 17 million individuals who have asthma as well
as those with no clinical evidence of asthma. Both adults and children can
be affected resulting in various degrees of reduced exercise tolerance. The
good news is that exercise-induced asthma is treatable.
WHAT IS EXERCISE-INDUCED ASTHMA?
Asthma is a lung disease that causes the airways of the lung to become
narrowed and inflamed. This narrowing is called bronchoconstriction. The
inflamed airway also produces an overabundance of mucus narrowing the
airways even further. The result of these events is the feeling of chest
tightness and difficulty in moving air into and out of the lungs.
Many "triggers" are responsible for bronchoconstriction in the lungs.
Exercise is one of the more common triggers. Bronchoconstriction during
exercise is called Exercise-Induced Asthma. In most cases of EIA,
bronchoconstriction occurs 4-8 minutes into the exercise and peaks about 10
minutes after stopping. Often this condition results in decreased
performance. The airways usually return to a normal state within 30-60
minutes after the activity has ceased.
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Asthmatic Lung
Constricted, Increased Mucus |
Normal Lung
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WHAT HAPPENS DURING EXERCISE-INDUCED ASTHMA?
It is believed that people with asthma have airways that are highly
sensitive to various conditions and environments. The airways of some people
may be more sensitive to dust in the air while others have trouble breathing
when the temperature outside is very cold. Those who have difficulty
breathing when they exercise may have EIA. EIA is thought to be caused by
very rapid cooling and drying of airways.
As you exercise, you breathe faster moving large amounts of cool, dry air
into your lungs. This cool, dry air must be warmed. As we breathe faster and
faster, the process of warming the air becomes increasingly difficult. This
rapid change in temperature is thought to be one of the causes of airway
narrowing.
Certain conditions, such as the environment and level of exertion, may
put a child at risk of having an attack. These conditions are likely to
increase the magnitude of stress on the airways of someone with EIA.
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What Might Trigger EIA? |
Effort Level
- Extreme exertion
- High effort
- Examples: Running, soccer, cycling, rowing)
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Environment
- Cold, dry air
- Dusty or polluted area
- Examples: Cross-country skiing, winter running, or hockey)
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What Might Lessen Symptoms of EIA? |
Effort Level
- Intermittent exertion
- Low to moderate effort
- Examples: Baseball, weight lifting, gymnastics
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Environment
- Warm, humid air
- Little to no pollutants
- Examples: Swimming, climate controlled work-outs in a gym
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A 15 year old distance runner has the following symptoms:
- Recent declines in performances times
- Chest tightness during competitions
- Coughing and wheezing at end of the event
- More success at indoor meets
Chest tightness, shortness of breath, a cough or wheeze, and decreased
performances are all very common symptoms of exercise-induced asthma in the
competitive athlete. The patient’s recent frustration may very well be due
to EIA. Importantly, if EIA is correctly diagnosed and treated, most
athletes should be able to resume a high level of activity with minimal
effect on their performance.
DIAGNOSIS
When the classic symptoms of EIA are present, your family physician may
readily diagnose and treat asthma symptoms. If treatment is unsuccessful,
consultation with an Asthma Specialist, such as a Pulmonologist, may be
necessary.
Classic Symptoms
- Chest Tightness
- Shortness of Breath
- Wheezing
- Feeling Out of Shape
- Other Lung Problems
- Coughing
Click here to see a diagram
showing how EIA is diagnosed.
If test results do not support EIA, a physician may need to consider
these diagnoses:
- Gastro-Esophageal Reflux
- Vocal Cord Paresis or Dysfunction
- Deconditioning
- Anxiety
- Cardiac Dysfunction
- Sinusitis
TREATMENTS
The most common way to treat EIA is through medications prescribed by
your physician. These medications work in a variety of ways and their
therapeutic benefit is usually based on your child’s symptoms. However
effective the prescribed medications prove to be, alternate treatments exist
to further assist an athlete in dealing with EIA.
| ALTERNATIVE TREATMENTS |
| Treatment |
How it Works |
Comments |
| Nasal Breathing |
By breathing in through the nose and out
through the mouth, one can humidify the air breathed to nearly 100%,
while warming the air to body temperature. The use of a mask or scarf
may also help to warm the air. |
May not be comfortable for some. |
| Refractory Period |
This is the time after an asthma attack
when the individual is at decreased risk of developing a second attack.
By inducing a mild asthma attack prior to competing, you may protect
yourself from an attack during the competition. |
May not benefit athletes in sprint-like
activities. |
| Relaxation Techniques |
By reducing the anxiety level of an
individual, breathing rates remain controlled. The psychological
benefits of relaxation may also help enhance performance. |
May be difficult for some individuals with
extreme anxiety. |
MEDICATIONS
The following table of commonly used medications is to serve only as an
information tool and is not all inclusive. The medical protocol which works
best for your child’s symptoms may include one or more of the medications
listed below. By working in conjunction with your physician and/or asthma
care specialist, treatment strategies for management of your EIA can be
designed. For further information regarding each of the drugs listed below,
consult your physician.
| |
Beta agonist |
Ipratropium Bromide |
Mast Cell Stabilizer |
| Trade Names |
Ventolin
Proventil
Serevent |
Atrovent |
Intal Nedocromil |
| How it Works |
Bronchodilator (B-agonist) |
Bronchodilator (Anti-Cholinergic) |
Anti-inflammatory, prevents mast cell
release of histamine |
| How Effective |
90-100% |
??? |
70-80% |
| How is it taken |
Inhaled, Capsule |
Inhaled |
Inhaled |
| Side Effects |
Increased heart rate Nervousness |
Palpitations Nervousness |
Dizziness (rare) Nausea (rare)
Coughing |
| Comments |
Most commonly used |
Not a first line medication |
Unclear mechanism for prevention of EIA |
| |
Corticosteriods |
Theopylline
|
| Trade Names |
Prednisone Beclovent
Flovent
Vanceril
AeroBid
Pulmicort |
Slo-Bid Slo-Phyllin
Theo-Dur |
| How it Works |
Anti-inflammatory |
Bronchodilators (Xanthine-
derivatives) |
| How Effective |
Highly effective |
65-80% |
| How is it taken |
Inhaled, Tablet |
Capsule, Tablet, Syrup |
| Side Effects |
Behavior changes, monitor long-term growth |
Palpitations Insomnia
Nausea |
| Comments |
Oral form banned by US Olympic Committee |
Very rarely used for EIA |
Q Will my child outgrow EIA?
A While your child may not completely outgrow EIA, his/her symptoms may
improve or worsen based on the season, the environmental conditions, or even
the current level of activity.
The thing to remember is that through awareness, exercise strategies, and
proven treatments, your child can achieve the highest levels of competition,
no matter what the sport.
Q Will having EIA affect my child’s relationship with his/her coaches
or teachers?
A Coaches and/or teachers should be informed of your child’s condition.
Educate them about treatment strategies and routines that will enable your
child to perform at his/her peak level.
Through a team effort with your physician, family and coach, one can
achieve success at every level.
Q My child is a swimmer who suffers from EIA like symptoms, should
he/she consider a different sport?
A Swimming, with its warm and moist environmental conditions, is actually
one of the best activities individuals with asthma can participate in. If
the symptoms persist, your physician should be able to help your child deal
with the breathing difficulties while they continue to develop within the
sport.
Q Does being in better shape help reduce the risk of having an asthma
attack?
A It appears that those individuals who keep themselves in better
physical condition are less likely to have an attack, especially at
intensities below a level of peak exertion. This may be due to the body’s
adaptive response to chronic exercise. This adaptation allows the body to
handle increasing intensities without increasing the breathing rate.
However, during the maximal exertion there seems to be little protective
effect of fitness level.
Q My child would like to play sports in college and has concerns about
his eligibility and the use of his asthma drugs. What are the rules
regarding such issues?
A The NCAA (National Collegiate Athletic Association) and USOC (United
States Olympic Committee) both have a list of banned substances which may
affect your child. This list is updated annually. Consult your physician or
asthma specialist for up to date information.
| Medication |
NCAA |
USOC |
| Albuterol |
OK |
OK |
| Ipratropium Bromide |
OK |
OK |
| Cromolyn Sodium |
OK |
OK |
| Corticosteriods (Inhaled) |
OK |
OK (May require physician’s note prior to
athletic competition.) |
| Theophylline |
OK |
OK |
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Partial Listing |
EIA: TAKING CONTROL
Taking control of the symptoms of exercise-induced asthma is as simple as
following the prescribed treatment plan. Don’t "tough it out." Never
hesitate to ask your doctor or asthma care specialist about any concerns you
or your child have and remember to comply with the treatment measures and
medications. This will ensure that your child will be able to enjoy
activities like exercising, playing sports, running, dancing, or whatever it
is your child likes to do.
One final note
In the 1984 Olympics, 67 athletes with asthma won 41 medals in sports
ranging from basketball to track and field to wrestling. In the 1988 games,
53 athletes with asthma won 16 medals. Clearly, exercise-induced asthma
should not be viewed as a roadblock to achieving your goals and following
your dreams.
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