Download Slide 1

Clinical Kinesiology and Anatomy, 5th Edition
Chapter 4
Arthrokinematics
Copyright © 2011. F.A. Davis Company
Clinical Kinesiology and Anatomy, 5th Edition
Osteokinematic Motion―End Feel

Normal

Bony
 Soft tissue stretch
 Soft tissue
approximation

Abnormal

Bony
 Boggy
 Muscle spasm
 Empty

Copyright © 2011. F.A. Davis Company
Springy block
Clinical Kinesiology and Anatomy, 5th Edition
Arthrokinematic Motion
 Accessory
motion terminology

Component movements
 Joint play
 Joint mobilization
 Joint manipulation
 Joint
surface shape

Ovoid joint
 Sellar (saddle-shaped) joint
Copyright © 2011. F.A. Davis Company
Clinical Kinesiology and Anatomy, 5th Edition
Types of Arthrokinematic Motion
 Roll
 Glide
or slide
 Spin
Copyright © 2011. F.A. Davis Company
Clinical Kinesiology and Anatomy, 5th Edition
Convex-Concave Rule
 Concave

Moves in the same direction as the body
segment’s motion
 Convex

joint surface
joint surface
Moves in the opposite direction of the body
segment’s movement
Copyright © 2011. F.A. Davis Company
Clinical Kinesiology and Anatomy, 5th Edition
Joint Surface Positions
(Joint Congruency)
 When
a joint is congruent, the joint surfaces

Have maximum contact with each other
 Are tightly compressed
 Are difficult to distract
 Are in the close-packed position
Copyright © 2011. F.A. Davis Company
Clinical Kinesiology and Anatomy, 5th Edition
Joint Surface Positions
(Joint Congruency)
 In
all other positions, the joint surfaces are
incongruent

Open-packed or loose-packed position
 Resting position
Copyright © 2011. F.A. Davis Company
Clinical Kinesiology and Anatomy, 5th Edition
Accessory Motion Forces
 Traction
 Approximation
 Shear
 Bending
 Rotary
Copyright © 2011. F.A. Davis Company