Centralization And Directional Preference Flashcards
Chemical pain
Nociceptors become activated by damage causing high concentration of irritating chemicals
How can chemical pain be reduced?
By movement by mechanoreceptor modulation but does not remain reduced
What can not abolish chemical pain?
Repeated motion
Mechanical pain
Nociceptors become activated by force, stress, deformity, or damage
How can mechanical pain be reduced?
Repeated motion
Centralization
Pain moving from distal to proximal due to repeated movement or sustained position (pain moves from spread to one area)
Peripheralization
Pain is going from proximal to distal due to specific repeated movement or sustained position (pain goes from localized to spread)
What are the three Mckenzie system classifications?
Postural (normal knee movie sign)
Dysfunction (knee flexion contracture)
Derangement (meniscal tear)
Postural syndrome
End range stress on normal tissue (no loss of motion)
(No pain during movement)
Dysfunction syndrome
End range stress on shortened tissue (pain at end range and loss of motion)
What are the classes of dysfunction syndrome?
Flexion
Extension
Lateral
Nerve root adherence
Derangement syndrome
Clinical presentation associated with a mechanical obstruction of an affect joint
What occurs with derangement syndrome?
Pain during movement and loss of motion
Directional preference
Specific direction of repeated movements or sustained position results in bettering of symptoms
What is an essential feature of derangement syndrome?
Directional preference
