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Backache - Top 100

With bilateral reduction of all fibers, the muscle promotes extension of the cervical and thoracic spine. When the upper fibers contract, the scapula and clavicle (humeral girdle) rise upward, while the scapula turns laterally with its lower corner. With a fixed scapula (other muscles), the upper tufts of the trapezius muscle tend to deflect the head to their side.
With a fixed neck, it first participates in the rotation of the scapula, lowering the glenoidal cavity, and then raising the scapula upward. If the scapula is fixed by other muscles - it helps to complete the turn of the neck in its direction.
With the simultaneous reduction of all fibers, keeps the spatula and its place, shifting it along with it somewhat forward. The upper teeth of this muscle pull the medial angle of the scapula forward and laterally.
Unbends the shoulder. Brings his hand to the trunk and penetrates the withdrawn shoulder, lifts the raised hand; if the hands are fixed on the bar-horizontal bar) pulls the trunk towards them (when climbing, swimming).
Muscles of the back should be moderately stretched, which allows us to identify strained thickenings containing trigger zones. The degree of their stretching is regulated by pulling the knees to the chest. With superficial palpation, areas of soreness and, often, reflected pain are determined.
When unilateral reduction takes part in the inclination of the spine with the thorax. With tonic contraction on both sides, it holds the spine in an upright position.
The iliopsoas muscle flexes the thigh. Also slightly helps with external hip rotation, sometimes helps to lift the hip. Helps bend the lumbar spine if the body is tilted forward.
With the leg free from support, the pear-shaped muscle shows a great strength: by contracting it, you can turn the thigh outward. Retracts the 90 ° bent femur.
Since the study of human posture, a large number of its classifications have been proposed (Kasperczyk 2000). One of the first was developed in the second half of the XIX century in Germany. It reflected the trends of the time, and the main criterion for its evaluation was the "military" stance.
Perception of damaging effects is carried out by nociceptors. Nociceptors, first discovered in 1969 by E.Perl and A.Iggo, are unencapsulated endings of A8 and C-afferents.

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