Spine stability system. Muscle activity and dysfunction
Keywords:
spine stabilizing system, spinal instability, neutral zone, muscle function, muscle dys¬ unction.Abstract
The articular surfaces displacement must be carried out under the control of bone, capsular, muscle, ligament and neurological structures in order to execute a correct corporal movement. We talk about dynamic articular stability when the movement is adapted in direction and quantity and the risk of suffering periarticular soft tissues microinjuries and backache symptoms is reduced. A basic control in the sector of movement in which the capsuloligamentous resistance is minimal (the neutral zone) and where exists more risk of movement and uncontrolled harmful forces for the own corporal tissues is needed.
he tonic activity of the deep segmental muscles is responsible of the correct displacement of the articular surfaces in this sector of the articular range and avoids the presence of uncontrolled displacements which is called functional or dynamic articular instability. This evaluation will be an indispensable requirement in the treatment of patients suffering from chronic muscle skeletal pain especially.
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