The lateral pterygoid muscle is involved in movement of the jaw. It can become become strained from chronic clenching of the jaw and grinding of the teeth. When this happened trigger points can form. This leads not only to pain and refered pain, but also dysfunctional joint mechanics. This muscle is a major player in TMJ dysfunction syndrome.
The multifidus muscle is a long muscle that travels the length of the spine. It has different actions on different parts of the spine. It extends and laterally flexes the cervical and lumbar spine, and rotates the thoracic spine. Trigger points in this muscle are common due to poor posture and bad movement mechanics. Trigger points in the lumbar area area are a common cause of low back pain. These lower points can also refer into the abdomen. Points that form in the cervical region will refer pain down the neck into the shoulder blade area.
The rectus femoris muscle is one of your quad muscles. It acts primarily to extend the knee but it also helps to flex the hip. This muscle is often overloaded from athletic activity, but it also can become chronically shortened from prolonged sitting. Trigger points will refer pain deep into the knee producing a deep ache felt into the joint.
the serratus anterior muscle is located on the side of the trunk. It attaches onto the ribs and the scapulae. This muscle assists in scapular motion and stability as well as assisting the movement of the ribs. Trigger points can form in this muscle due to poor shoulder posture. Once formed, these points will cause pain to be felt in the side, under the armpit, and down the inside of the arm. Once formed trigger points will not release on their own, they require a manual technique such as trigger point massage.
Myofascial trigger points form in a muscle due to overload stress. A portion of muscle fibers lock up into a knot. Once formed these points will irritate sensory nerves that are in proximity to the knot. When this happens,
trigger points have the capacity to refer pain along specific distributions or patterns that are well mapped out. sometimes pain may be felt at a great distance away from the actual point itself.
Trigger points are knots of contracted muscle or connective tissue that form as a result of overload stress. Once formed these points will produce pain, refered pain, weakness, and stiffness. Trigger points can also mimic other conditions such as Carple tunnel syndrome and sciatica. Trigger points will on go away on their own, they must be manually released.
The sternocleidomastoid muscles are two strap like muscles located in the front of you neck. They often become overworked from poor sitting posture. Trigger points in these muscles will cause referral pain into the head and around the eye, causing migraine type pain.