arm muscle strain
Introduction
Introduction An arm muscle strain is a type of muscle strain, which is caused by a sharp contraction or excessive pulling of the muscle during exercise. Muscle strain is a damage caused by a sharp contraction or excessive pulling of muscles during exercise. This is easy to happen in long squats, pull-ups and sit-ups. After the muscle strain, the painful part of the strained area can be touched by the muscles of the muscles, and the pain is obvious. The local swelling or subcutaneous hemorrhage is obviously restricted. Local pain, tenderness; swelling, muscle tension, stiffness, spasms, dysfunction, etc.
Cause
Cause
In sports, due to improper preparation activities, the physiological function of a certain muscle has not yet reached the state required to adapt to exercise; the training level is not enough, the muscle elasticity and strength are poor; fatigue or excessive load, the muscle function is reduced, the strength is weakened Coordination is reduced; wrong technical movements or lack of concentration during exercise, excessive or violent movements; too low humidity, too high a quality of the site or equipment can cause muscle strain.
When the various actions are completed, the muscles actively violently contract beyond the capacity of the muscle itself; or suddenly the passive excessive elongation, beyond its stretchability, can cause strain. When the weightlifting exercise bends and grabs the barbell, the erector spinae is strained due to strong contraction.
Examine
an examination
Related inspection
Electromyogram biceps reflex
Local pain, tenderness; swelling, muscle tension, stiffness, spasm; dysfunction. Pain is aggravated when the injured muscle is actively contracted or passively stretched; the muscle contraction resistance test is positive, that is, the pain is aggravated or a broken depression occurs. Some wounded people have a tear-like feeling when they are injured, and the swelling is obvious and the subcutaneous congestion is serious. If there is a depression in the touch or an abnormal bulge at one end, the muscle may be broken.
Diagnosis
Differential diagnosis
Differential diagnosis of arm muscle strain:
1. Muscle soreness: Muscle soreness caused by exercise is a very common injury experience for people involved in sports. In general, exercise-induced muscle soreness can be divided into acute muscle soreness and chronic (late onset muscle soreness). Acute muscle soreness is different from muscle strain, but refers to the soreness caused by temporary ischemia of the muscles. It only occurs when the muscles are intense or long-term, and the muscle activity disappears as soon as the muscle activity ends. Usually, acute muscle soreness can be mixed with muscle stiffness.
2, muscle bruises: muscle: mainly composed of muscle tissue. The shape of muscle cells is slender and fibrous, so muscle cells are often called muscle fibers. Muscle bruises are crushed by objects to damage muscles.
3, muscle tear: muscle strain is the damage caused by the muscle contraction or excessive traction during exercise. This is easy to occur during long, pull-ups and sit-up exercises. After the muscle strain, the painful part of the strained area can be touched by the muscles of the muscles, and the pain is obvious. The local swelling or subcutaneous hemorrhage is obviously restricted.
