Headache Trigger Points and Bio-Chiropractic Treatment

Individuals that experience frequent headaches can have sensitive headache trigger points. Every case is different and requires a thorough examination before a proper and personalized chiropractic treatment plan can begin. Headaches can be brought on from a variety of causes. This could be:

• Drug reactions
• Temporomandibular joint dysfunction (TMJ)
• Tightness in the neck muscles
• Low blood sugar
• High blood pressure
• Stress
• Fatigue

The majority of recurrent headaches fall into three types:

• Tension headaches, also known as cervicogenic headaches
• Migraine headaches
• Cluster headaches, which are related to migraines.

Tension

Tension headaches are the most common and affect around 77% of individuals experiencing chronic headaches. Most individuals describe a tension headache as a consistent dull ache on one side of the head and sometimes both sides. They are often described as having a tight band/belt around the head or behind the eyes. These headaches usually start slowly, gradually and can last for a few minutes or days. They tend to start in the middle of the day or before the end of the day.

These headaches can be the result of stress and/or poor posture. The most common cause is subluxations in the upper back and neck, usually combined with active headache trigger points. This stresses the spinal muscles in the upper back and neck. A tension headache or stress headache can last 30 minutes to a few days. Chronic tension headaches can last for months. The pain can be severe; however, these headaches are typically not associated with symptoms like throbbing, nausea, or vomiting.

If the top cervical vertebrae shift out of their position and lose their normal motion, a small muscle called the rectus capitis posterior minor/RCPM begins to spasm. This small muscle has a tendon that slips between the upper neck and the base of the skull. It attaches to a thin, sensitive tissue called the dura mater that covers the brain. The dura mater is very pain-sensitive. When the RCPM muscle goes into spasm, the tendon pulls the dura mater causing a headache. Individuals that work at a desk station for long hours tend to experience headaches from this cause. Another cause comes from referred pain caused by headache trigger points in the Sternocleidomastoid/SCM or levator muscle on the side of the neck. This cause tends to happen more to individuals that have suffered a whiplash injury with muscle damage in the neck region.

Migraine Headaches

Migraines are intense and throbbing headaches that are associated with nausea and sensitivity to light or noise. They can last for a few hours to a few days. Many experience visual symptoms known as an aura just before they come on. This is described as seeing flashing lights or when things take on a dream-like appearance. However, even in individuals that don’t experience the aura, most can tell that a migraine is getting ready to present. Individuals usually have their first attack before age 30. They tend to run in families supporting a genetic component. Some have attacks several times a month, while others can have less than one a year. Most individuals find that migraines happen less and become less severe as they get older.

These headaches are caused by the constriction of blood vessels in the brain. During the constriction period, there is a decrease in blood circulation. This is followed by dilation/enlargening of the blood vessels. This is what leads to the visual symptoms. Then the blood vessels dilate, generating a rapid increase in blood pressure inside the head. This increased pressure is what leads to a pounding headache. Every time the heart beats, it sends another shock wave through the carotid arteries in the neck into the brain. There are different theories as to why the blood vessels constrict, but they are still unknown. What is known is that several factors can trigger a migraine. This includes:

• Lack of sleep
• Stress
• Flickering lights
• Strong smells
• Changing weather
• Foods that are high in an amino acid known as tyramine

Cluster

Cluster headaches are very short excruciating headaches. They are usually felt on one side of the head behind the eyes. These headaches affect about 1 million individuals and are more common in men. This type of headache tends to happen at night. They are called cluster headaches because they tend to happen one to four times a day over several days. After one cluster is over, it could be months or even years before they present again. Like migraines, cluster headaches cause the dilation of the blood vessels in the brain, increasing the pressure.

Trigger Points

Headache trigger point therapy involves four muscles. These are the:

• Splenius muscles
• Suboccipitals
• Sternocleidomastoid – SCM
• Trapezius

The Splenius muscles involve two individual muscles, the Splenius Capitis and the Splenius Cervicis. These muscles run along the upper back to the skull base or the upper cervical/neck vertebrae. Trigger points in the Splenius muscles are a common contributor to pain that travels through the head to the back of the eye and top of the head.

The Suboccipitals are a group of four small muscles that maintain proper movement and positioning between the first cervical vertebra and the skull base. Trigger points in these muscles can cause pain that feels like it’s happening inside the head, from the back to the eye and forehead. Individuals report that the whole side of the head hurts. This is a pain pattern similar to a migraine.

The Sternocleidomastoid muscle runs along the base of the skull, behind the ear, down the side of the neck. It attaches to the top of the sternum/breastbone. Although most are not aware of this muscle’s trigger points, the effects are evident. This includes:

• Referred pain
• Balance issues
• Visual symptoms

Referred pain tends to be eye pain, headaches over the eye, and can even cause earaches. An unusual characteristic of SCM headache trigger points is that they can cause dizziness, nausea, and balance problems.

The trapezius muscle is the large, flat muscle in the upper and middle back. Pain can be felt in the temple and back of the head. A common trigger point is located at the top of the muscle. This particular point can activate secondary trigger points in the temple or jaw muscles, leading to jaw or tooth pain.

Headache Triggers

• Stress can be a trigger.
• Depression, anxiety, frustration, and even pleasant excitement can be associated with headache development.
• A headache diary can help determine whether factors like food, weather, and/or mood correlate with headache patterns.
• Repeated exposure to nitrite compounds can result in a dull headache accompanied by a flushed face. Nitrite dilates blood vessels and is found in products like heart medications, and is also used as a chemical to preserve meat. Processed meats containing sodium nitrite can contribute to headaches.
• Foods prepared with monosodium glutamate or MSG can result in headaches. Soy sauce, meat tenderizers, and various packaged foods contain this chemical as a flavor enhancer.
• Exposure to poisons, even household varieties like insecticides, carbon tetrachloride, and lead, can contribute.
• Contact with lead batteries or lead-glazed pottery.
• Foods that are high in the amino acid tyramine should be avoided. This could be ripened cheeses like cheddar, brie, chocolate, and pickled or fermented food.

Bio-Chiropractic

Chiropractic adjustments are highly effective for treating tension headaches, especially those that originate in the neck. Research has found that spinal manipulation resulted in almost immediate improvement and had fewer side effects and longer-lasting relief than taking common medications. There is a significant improvement by manipulating the upper two cervical vertebrae, combined with adjustments to the area between the cervical and thoracic spine.

Body Composition Testing

Vibration Exercise

Vibration exercise is believed to stimulate the muscle fibers without going to a gym or stressing the bones. One study broke up postmenopausal women into three groups: resistance training, vibration training combined with resistance training, or no exercise/training. Their body composition was measured before starting the study. After the study was completed, the findings included:

• Both the resistance group and the resistance group with vibration training increased lean tissue mass.
• The control group did not show an increase in lean tissue and, in fact, gained body fat.
• The combination group, using vibration training with resistance training, showed a drop in body fat.

Another study placed male athletes in a training program that included vibration training. The first group had lower-limb strength training combined with vibration training, and the other had lower-limb strength training without vibration training. The researchers found that the athletes in the vibration training group improved leg extension strength by five percent. In addition, the vibration training groups balancing ability and vertical lift/jumping test improved as well.

References

Bryans, Roland et al. “Evidence-based guidelines for the chiropractic treatment of adults with headache.” Journal of manipulative and physiological therapeutics vol. 34,5 (2011): 274-89. doi:10.1016/j.jmpt.2011.04.008

Chaibi, Aleksander et al. “Chiropractic spinal manipulative therapy for cervicogenic headache: a single-blinded, placebo, randomized controlled trial.” BMC research notes vol. 10,1 310. 24 Jul. 2017, doi:10.1186/s13104-017-2651-4

Bryans R, Descarreaux M, Duranleau M, et al. Evidence-based guidelines for the chiropractic treatment of adults with neck pain. J Manipulative Physiol Ther 2014; 37: 42-63.

Bryans R, Descarreaux M, Duranleau M, et al. Evidence-based guidelines for the chiropractic treatment of adults with headache. J Manipulative Physiol Ther 2011; 34: 274-89.