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 rhomboids are muscles located in your upper back. They lie underneath the trapezius muscle. These muscles are responsible for retracting your scapula, or pulling your shoulder blades back. Since poor posture causes the shoulders to round forward, the rhomboids are often strained. When this happens trigger points will form. These points cause deep achy pain to be felt along the shoulder blade. Once trigger points have formed they will not release on there own. A manual release such as trigger point massage is required.
Activation of trigger points may be caused by a number of factors, including acute or chronic muscle overload, activation by other trigger points (key/satellite, primary/secondary), disease, psychological distress (via systemic inflammation), homeostatic imbalances, direct trauma to the region, collision trauma (such as a car crash which stresses many muscles and causes instant trigger points) radiculopathy, infections and health issues such as smoking.
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.
the glute medius is a major pelvic stablizer. It is often overworked in runners and hockey players. trigger points in this muscle will cause pain to be felt in the hip and down the back of the leg.
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.