Trigger Points

What the heck is a trigger point?

~ Dr. Robert Speirs DC ~ Leave a comment

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What is a Trigger Point?

Trigger Points (TP’s) are defined as a “hyper-irritable spot within a taut band of skeletal muscle. The spot is painful on compression and can evoke characteristic referred pain and autonomic phenomena.”1

Put into plain language, a TP is a painful knot in muscle tissue that can refer pain to other areas of the body. You have probably felt the characteristic achy pain and stiffness that TP’s produce, at some time in your life.

TP’s were first brought to the attention of the medical world by Dr. Janet G. Travell. Dr. Travell, physician to President John F. Kennedy, is the acknowledged Mother of Myofascial Trigger Points. In fact, “Trigger Point massage, the most effective modality used by massage therapists for the relief of pain, is based almost entirely on Dr. Travell’s insights.”2 Dr. Travell’s partner in her research was Dr. David G. Simons, a research scientist and aerospace physician.

Trigger Points are very common. In fact, Travell and Simons state that TP’s are responsible for, or associated with, 75% of pain complaints or conditions.1 With this kind of prevalence, it’s no wonder that TP’s are often referred to as the “scourge of mankind”.

Trigger Points can produce a wide variety of pain complaints. Some of the most common are migraine headaches, back pain, and pain and tingling into the extremities. They are usually responsible for most cases of achy deep pain that is hard to localize.

A TP will refer pain in a predictable pattern, based on its location in a given muscle. Also, since these spots are bundles of contracted muscle fibres, they can cause stiffness and a decreased range of motion. Chronic conditions with many TP’s can also cause general fatigue and malaise, as well as muscle weakness.

Trigger Points are remarkably easy to get, but the most common causes are

TP’s (black X) can refer pain to other areas (red)

Sudden overload of a muscle

  • Poor posture
  • Chronic frozen posture (e.g., from a desk job), and
  • Repetitive strain

Once in place, a TP can remain there for the remainder of your life unless an intervention takes place.

Trigger Points Not Well Known

With thousands of people dealing with chronic pain, and with TP’s being responsible for — or associated with — a high percentage of chronic pain, it is very disappointing to find that a large portion of doctors and other health care practitioners don’t know about TP’s and their symptoms.

Scientific research on TP’s dates back to the 1700’s. There are numerous medical texts and papers written on the subject.

But, it still has been largely overlooked by the health care field. This has led to needless frustration and suffering, as well as thousands of lost work hours and a poorer quality of life.

How Are Trigger Points Treated?

As nasty and troublesome as TP’s are, the treatment for them is surely straight-forward. A skilled practitioner will assess the individual’s pain complaint to determine the most likely location of the TP’s and then apply one of several therapeutic modalities, the most effective of which is a massage technique called “ischemic compression”.

Basically, the therapist will apply a firm, steady pressure to the TP, strong enough to reproduce the symptoms. The pressure will remain until the tissue softens and then the pressure will increase appropriately until the next barrier is felt. This pressure is continued until the referral pain has subsided and the TP is released. (Note: a full release of TP’s could take several sessions.)

Other effective modalities include dry needling (needle placed into the belly of the TP) or wet needling (injection into the TP). The use of moist heat and stretching prove effective, as well. The best practitioners for TP release are Massage Therapists, Physiotherapists, and Athletic Therapists. An educated individual can also apply ischemic compression to themselves, but should start out seeing one of the above therapists to become familiar with the modality and how to apply pressure safely.

1 Simons, D.G., Travell, D.G., & Simons, L.S. Travell and Simons’Myofascial Pain and Dysfunction: the Trigger Point Manual.

Vol. 1. 2nd ed. Lippincott, Williams, and Wilkins, 1999.

PFPS Cont. You want details?

~ Dr. Robert Speirs DC ~ Leave a comment

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The muscles of the hip provide not only local stability, but also play an important role in spinal and lower extremity functional alignment. (1-4) While weakness in some hip muscles (hip extensors and knee extensors) is well tolerated, weakness or imbalance in others can have a profound effect on gait and biomechanical function throughout the lower half of the body. (5) Weakness of the hip abductors, particularly those that assist with external rotation, has the most significant impact on hip and lower extremity stability. (5,6)

Hip Abduction.gif

The gluteus medius is the principal hip abductor. When the hip is flexed, the muscle also assists the six deep hip external rotators (piriformis, gemelli, obturators, and quadratus femoris). The gluteus medius originates on the ilium just inferior to the iliac crest and inserts on the lateral and superior aspects of the greater trochanter. While the principal declared action of the gluteus medius is hip abduction, clinicians will appreciate its more valuable contribution as a dynamic stabilizer of the hip and pelvis- particularly during single leg stance activities like walking, running, and squatting. The gluteus medius contributes approximately 70% of the abduction force required to maintain pelvic leveling during single leg stance. The remainder comes predominantly from 2 muscles that insert onto the iliotibial band: the tensor fascia lata and upper gluteus maximus.  Hip abductor strength is the single greatest contributor to lower extremity frontal plain alignment during activity. (6)

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Incompetent hip abductors and/or external rotators allows for excessive adduction and internal rotation of the thigh during single leg stance activities. This leads to a cascade of biomechanical problems, including pelvic drop, excessive hip adduction, excessive femoral internal rotation, valgus knee stress, and internal tibial rotation. (1,7-12)

 

References
1. Szu-Ping Lee, Powers C. Description of a Weight-Bearing Method to Assess Hip Abductor and External Rotator Muscle Performance. JOSPT. Volume 43, Issue 6
2. Crossley KM, Zhang WJ, Schache AG, Bryant A, Cowan SM. Performance on the single-leg squat task indicates hip abductor muscle function. Am J Sports Med. 2011;39:866-873.
3. Presswood L, Cronin J, Keogh JWL, Whatman C. Gluteus medius: applied anatomy, dysfunction, assessment, and progressive strengthening. Strength Cond J. 2008;30:41-53.
4. Sled EA, Khoja L, Deluzio KJ, Olney SJ, Culham EG. Effect of a home program of hip abductor ex- ercises on knee joint loading, strength, function, and pain in people with knee osteoarthritis: a clinical trial. Phys Ther. 2010;90:895-904.
5. van der Krogt MM, Delp SL, Schwartz MH How robust is human gait to muscle weakness? Gait Posture. 2012 Feb 29.
6. Laurie Stickler, Margaret Finley, Heather Gulgin Relationship between hip and core strength and frontal plane alignment during a single leg squat Physical Therapy in Sport Available online 2 June 2014
7. Ireland ML, Willson JD, Ballantyne BT, Davis
IM. Hip strength in females with and without patellofemoral pain. J Orthop Sports Phys Ther. 2003;33:671-676.
8. Noehren B, Davis I, Hamill J. ASB clinical biome- chanics award winner 2006: prospective study of the biomechanical factors associated with iliotib- ial band syndrome. Clin Biomech (Bristol, Avon). 2007;22:951-956.
9. Powers CM. The influence of abnormal hip me- chanics on knee injury: a biomechanical perspec- tive. J Orthop Sports Phys Ther. 2010;40:42-51.
10. Powers CM. The influence of altered lower- extremity kinematics on patellofemoral joint dysfunction: a theoretical perspective. J Orthop Sports Phys Ther. 2003;33:639-646.
11. Sigward SM, Powers CM. Loading characteristics of females exhibiting excessive valgus moments during cutting. Clin Biomech (Bristol, Avon). 2007;22:827-833
12. Souza RB, Powers CM. Differences in hip kine- matics, muscle strength, and muscle activation between subjects with and without patellofemo- ral pain. J Orthop Sports Phys Ther. 2009;39:12- 19.

Stiff neck??

~ Dr. Robert Speirs DC ~ Leave a comment

One of the most common causes of a stiff neck are trigger points in the levator scapulae muscle. This muscle runs up the side of the neck from the top of the shoulder blade. It helps to shrug the shoulders and move and stabilize the neck. When trigger points form in this muscle they will produce pain and stiffness in the neck. Deep tissue trigger point massage applied to these knots is an effective treatment method.

Photo by Karolina Grabowska on Pexels.com

Trigger points and headaches

~ bryancobb ~ Leave a comment

Trigger points are contracted knots of muscle tissue that form in any muscle as a result of overload stress. Trigger points cause pain, referred pain, stiffness and weakness. Trigger points that form in the muscles of the neck and head often refer pain into the head and face. This is one of the most common causes of headache pain. Trigger point massage is an effective way to treat trigger points.

Myofascial pain syndrome.

~ bryancobb ~ Leave a comment

Myofascial pain syndrome is a chronic pain disorder. In this condition, pressure on sensitive points in your muscles (trigger points) causes pain in the muscle and sometimes can cause pain spread to other  parts of your body. This is called referred pain. Trigger points can also cause stiffness and weakness. This syndrome typically occurs after a muscle has been contracted repetitively. This can be caused by repetitive motions used in jobs or hobbies or by stress-related muscle tension. While nearly everyone has experienced muscle tension pain, the discomfort associated with myofascial pain syndrome persists or worsens. Treatment options include massage therapy, dry needling, and physical therapy. relaxation techniques such as meditation also can help.

Got a stiff neck??

~ bryancobb ~ Leave a comment

One of the most common causes of a stiff neck are trigger points in the levator scapulae muscle. This muscle runs up the side of the neck from the top of the shoulder blade. It helps to shrug the shoulders and move and stabilize the neck. When trigger points form in this muscle they will produce pain and stiffness in the neck. Deep tissue trigger point massage applied to these knots is an effective treatment method.

Trigger points in the abdominal muscles.

~ bryancobb ~ Leave a comment

Myofascial trigger points in the abdominal muscles are very common. These muscles are responsible for trunk movement and stability, and are engaged in some way during most activities. As a result trigger points will easily form. These knots will often refer pain into the lower or mid back in a horizontal strip. Trigger points in the abdominal muscles are often overlooked as a source of back pain. Once developed, a trigger point won’t release on its own. A therapeutic modality such as trigger point massage is needed to release the tissue.

Trigger point pain

~ bryancobb ~ Leave a comment

Myofascial trigger points are contracted knots that form in muscle tissue. They form from overload stress placed on the muscle. Both chronic stress such as poor posture and acute stress such as an injury will cause trigger points to form. Once there a trigger point will produce pain, referred pain, weakness and stiffness. Trigger points don’t go away with rest or with time, some form of intervention such as trigger point massage is needed to treat the injured muscles. Trigger points can form in any muscle in the body and are one of the most common causes of pain.

Trigger points in the hamstrings.

~ bryancobb ~ Leave a comment

With all the sitting going on these days, tight hamstrings are becoming increasingly common. When your hamstrings are tight they almost certainly have trigger points. These contracted knots in the muscle are a common cause of pain felt in the back of the leg, knee and lower buttocks. Trigger points don’t go away with rest or stretching, they need a therapeutic intervention such as massage to be released.