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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 ...
The magnitude of the effect is subject to many variations, depending for instance on the time between bouts, the number and length of eccentric contractions, and the exercise mode. It also varies between people and between indicators of muscle damage. [2]: 69 Generally, though, the protective effect lasts for at least several weeks. It seems to ...
Acute muscle soreness (AMS) is the pain felt in muscles during and immediately, up to 24 hours, after strenuous physical exercise. The pain appears within a minute of contracting the muscle and it will disappear within two or three minutes or up to several hours after relaxing it. [1] There are two causes of acute muscle soreness: [1]
Intermittent claudication, also known as vascular claudication, is a symptom that describes muscle pain on mild exertion (ache, cramp, numbness or sense of fatigue), [1] classically in the calf muscle, which occurs during exercise, such as walking, and is relieved by a short period of rest.
Myalgia or muscle pain is a painful sensation evolving from muscle tissue. It is a symptom of many diseases . The most common cause of acute myalgia is the overuse of a muscle or group of muscles ; another likely cause is viral infection , especially when there has been no injury .
Muscle stiffness may also be present; if muscle weakness is not also present, and cramps are more severe, the stiffness may be categorized instead as cramp fasciculation syndrome. [3] Cramp fasciculation is a variant of BFS which presents with muscle pain and exercise intolerance. [2] [4]
The muscles most often affected are usually in the legs and feet (75% of reported cases), but the upper body muscles such as the arms, face, neck, and trunk have also been observed to be affected during the episodes of dystonia. [3] Age of onset is usually sometime in childhood, but can range from 1–30 years old. [4]
Symptoms are often minimal – if symptomatic, a posterior shoulder or scapular burning type of pain may be reported. Some injuries, particularly lesions, can paralyse the serratus anterior muscle to produce a winged scapula. [3] [12] This is most prominent when the arm is lifted forward or when the patient pushes the outstretched arm against a ...