Neck / Cervical pain Mechanics

                  Effect of Mechanical Stress

          Mechanical stress to pain-sensitive structures,
          such as sustained stretch
          to ligaments or joint capsules or compression of blood vessels,

                                                               Cervical ligaments

Cervical joint capsule

Cervical compression

Cervical blood vessels

 causes distention or  compression of the nerve endings, which leads to the experience of pain.



Effect of Impaired Postural 
Support from Trunk Muscles

→Continual exaggeration  of the curves leads to postural impairment and muscle strength and flexibility imbalances
     as well as other soft tissue restrictions or hypermobility.

→ Muscles that are habitually kept in a stretched position

    will in general test more fragile due to a move in the length-strain
     curve; this is known as stretch weakness.   
                                                            

                                                                           

                                                                                      
 →  Muscles kept in a habitually shortened position tend to lose their elasticity.
These muscles test strong only in the shortened position
     but become weak as they are lengthened. This is known as tight weakness       

Effect of Impaired Muscle Endurance


Large repetitive motions require muscles to respond so as to control the activity.

 In either case, as the muscles fatigue, the mechanics of performance change and the load is shifted to the inert tissues supporting the spine at the end ranges. 

With poor solid help and a continued burden on the idle supporting tissues, creep and diste and distention occur, causing mechanical stress.

                                  Prolong repeative movements change centre of gravity

      that is the reason cervical burden convert anteriorly so cervical structure supported stretch

                                 Nerve compression  

                                 Blood vessels compression

                                 Muscle stretch

                                 Muscle sprain  

                                 Change Cervical Angle

                                 Cervical lordosis loss

                                 Load Transfer on C7 Cervical vertebra

  Pain Syndromes Related to Impaired Posture

A postural issue is a stance that digresses from typical arrangement however has no basic impediment

Postural agony disorder alludes to the torment that outcomes from mechanical pressure

at the point when an individual keeps up a broken stance for a drawn out period; the torment is normally alleviated

Postural Dysfunction

Postural dysfunction differs from the postural pain syndrome in that adaptive shortening of soft tissues and muscle weakness are involved. 

The cause may be prolonged poor postural habits, or it may be a result of contractures and adhesions formed during the healing of tissues after trauma or surgery.