|
Biofeedback
is the use of electronic monitoring of a normally automatic bodily
function in order to train someone to acquire voluntary control
of that function.
Uses
This specialized
type of training allows people to gain control over physiological
reactions that are ordinarily unconscious and automatic. Malfunctions
in theses automatic responses contribute to a wide variety of medical
problems. In study after study, biofeedback has shown the effectiveness
to help bring such counter-productive reactions back into line,
providing significant relief for many of the people who try it.
Although it
is not a sure cure, biofeedback helps many people with chronic pain,
including the pain of arthritis, muscle spasms and headache (both
migraine and tension headache). It can reduce tension and anxiety,
combat chronic insomnia and fatigue, alleviate depression, reduce
hyperactivity and attention deficit disorder, and even help overcome
alcoholism and drug addiction. Some people have found it helpful
for controlling high blood pressure or an abnormal heart rate. It
is also useful for retraining, reconditioning, and strengthening
muscles after an accident or surgery, restoring loss of control
due to pain or nerve damage, and overcoming urinary (or bowel) incontinence.
For asthmatics, biofeedback offers the possibility of controlling
bronchial spasms and reducing the severity of attacks. Many victims
of Raynaud's disease (periodic loss of circulation in the fingers)
have been able to rectify the problem through biofeedback.
The technique
has helped others deal with digestive disorders such as ulcers,
irritable bowel syndrome, acidity, dysfunction of the esophagus
and difficulty swallowing. Biofeedback is under study as a potential
aid in the treatment of a number of other ailments as well, although
results are more mixed. It may help relax the muscles in temporomandibular
joint syndrome (TMJ). It appears to reduce the severity and frequency
of seizures in some, though not all, epileptics. It can help ease
the symptoms of chronic fatigue syndrome. It has been tried as a
remedy for chronic constipation, motion sickness and the controllable
tics and compulsions of Tourette syndrome.
Procedure
of Treatment
Biofeedback
is not a passive treatment. It requires your intensive participation
as you learn to control such normally involuntary (autonomic) functions
as heart rate, blood pressure, brain waves, skin temperature, muscle
tension, breathing and digestion. At the first session, you'll be
asked a few questions about your own health and that of family members.
The biofeedback therapist will then apply sensors to various points
on your body. The location depends on the problem that needs treatment.
If you have migraines, sleep problems and mood disorders, for example,
the electrodes are often attached to your scalp; to treat heart
problems and muscle tension, they will be placed on your skin. Other
possible sites include the hands, feet or fingers.
The sensors
are connected to a computer, a polygraph or another piece of monitoring
equipment that provides instant feedback to you on the function
you're trying to control, such as the tension in a particular set
of involuntary muscles or circulation to a specific part of the
body. Some biofeedback machines signal changes graphically on a
computer display, other beep, buzz or blink to indicate the strength
or level of the function you're targeting. The therapist will teach
you mental or physical exercises that can help you affect the function
that is causing a problem. You can easily gauge your success by
noting any changes in the intensity, volume or speed of the signals
from the machine. Gradually, you will learn to associate successful
thoughts and actions with the desired change in your involuntary
responses. Once you have thoroughly learned an effective pattern
of actions, you'll be able to assert control without the aid of
the feedback device.
Among the feedback
instruments you are most likely to encounter are the following:
Electromyographs(EMGs)
measures muscle tension. Therapists use them to relieve muscle stiffness,
treat incontinence and recondition injured muscles.
Skin temperature
gauges show changes in the amount of heat given off by the skin,
a measurement that indicates any change in blood flow. These gauges
are used in the treatment of Raynaud's disease, high blood pressure,
anxiety, and migraines.
Galvanic
skin response sensors(GSRs) use the amount of swear you produce
under stress to measure the conductivity of your skin. They are
often used to reduce anxiety.
Electroencephalographs(EEGs)
measure brain-wave activity. Conditions that may benefit from training
on these machines include attention deficit/hyperactivity disorder,
tooth grinding, head injuries and depression (including bipolar
depression and seasonal affective disorder).
Electrocardiographs(ECGs)
monitor the heart rate and may be useful in relieving on overly
rapid heartbeat and controlling high blood pressure.
Respiration
feedback devices concentrate on the rate, rhythm and type of
breathing to help lessen symptoms of asthma, anxiety, and hyperventilation
and promote relaxation. Along with biofeedback training, the therapist
may also give you instruction in deep breathing, meditation, visualization,
and muscle relaxation-all of which may aid in relieving stress-related
symptoms.
Treatment
Time: Sessions usually last between 30 minutes and one hour.
Treatment
Frequency: In most cases, people can learn to raise or lower
their heart rate, relax specific muscles, lower blood pressure,
and control other function in eight to ten sessions. Some problems,
such as attention deficit/hyperactivity disorder, take longer-sometimes
up to 40 sessions. Depending on the severity of the problem and
the technique uses, therapists suggest you attend one to five sessions
per week.
Benefits
Biofeedback
is a 'mind over matter' form of therapy that has only recently begun
to filter into mainstream medicine. Although ancient Greek, Chinese
and Indian healers were convinced that the mind could influence
the body, either causing illness or curing disease, the concept
fell into disrepute as Western medicine began to discover the infectious
agents and chemical malfunctions that lie at the root of so many
familiar ailments. It was only when modern instrumentations made
it possible to measure subtle changes in unconscious physical reactions
that medicine once more turned its attention to the mind-body connection.
Although biofeedback promises to remedy certain ailments through
disciplined mental effort, it has nothing in common with other forms
of mind-body therapy such as meditation and yoga. It does not rely
on maintenance of some sort of theoretical balance or harmony in
order to achieve its effects. Instead, it seeks control over specific,
measurable physiological reactions that have somehow gone awry.
As such, it can prove especially useful for any disorder caused
or aggravated by involuntary muscular tension or tightening. Like
other forms of mind-body therapy, it is entirely useless for fighting
infections, curing cancer, relieving allergies or healing injuries.
Who
Should Avoid This Therapy?
If
you use a pacemaker or have a severe heart disorder, check with
your doctor before using a biofeedback device that measures your
perspiration output. These machines use a small amount of electricity
to produce readings and, even though no problems have been reported
to date, there is a chance that they may affect your pacemaker or
damage your heart.
Side-effects
Like
other mind-body forms of therapy, biofeedback is notably free of
side effects. Indeed, it is often turned to by people seeking a
respite from the side effects of conventional medicines.
|