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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 ...
Some studies have shown a reasonably characteristic pattern of muscle involvement on whole-body muscle MRI in LAMA2-MD patients. [19] [20] This relates to muscles or group of muscles involvement versus sparing. For example, sparing of the gracilis, sartorius muscles, [20] and the adductor longus muscle [19] [21] has been linked to LAMA2-MD.
Muscular dystrophies are caused by mutations in genes, usually those involved in making muscle proteins. [2] The muscle protein, dystrophin, is in most muscle cells and works to strengthen the muscle fibers and protect them from injury as muscles contract and relax. [3] It links the muscle membrane to the thin muscular filaments within the cell.
The latissimus dorsi is a potential source of muscle for breast reconstruction surgery after mastectomy (e.g., Mannu flap) [12] or to correct pectoral hypoplastic defects such as Poland's syndrome. [13] [14] An absent or hypoplastic latissimus dorsi can be one of the associated symptoms of Poland's syndrome. [15] [16]
Cardiac muscle. There are few studies corroborating the effectiveness of exercise for limb–girdle muscular dystrophy. However studies have shown that exercise can, in fact, damage muscles permanently due to intense muscle contraction. [24] Physical therapy may be required to maintain as much muscle strength and joint flexibility as possible.
Progress on treating stiff-person syndrome has been slow, Claudette noted, being that it is rare. "The vocal cords are muscles, and the heart is also a muscle," said Claudette.
Cramp fasciculation syndrome (CFS) is a rare [1] peripheral nerve hyperexcitability disorder. It is more severe than the related (and common) disorder known as benign fasciculation syndrome ; it causes fasciculations , cramps, pain, fatigue, and muscle stiffness similar to those seen in neuromyotonia (another related condition). [ 2 ]
(D) Advanced thenar muscle atrophy. [8] Signs and symptoms depend on the specific disease, but motor neuron diseases typically manifest as a group of movement-related symptoms. [6] They come on slowly, and worsen over the course of more than three months. Various patterns of muscle weakness are seen, and muscle cramps and spasms may occur.