Arthrokinematics
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Introduction[edit|edit source]
'Arthrokinematics”refers to the movement of joint surfaces. Arthrokinematics differs fromOsteokinematics- in general Osteokinematics means bone movement and Arthrokinematics joint movement.
The angular movement of bones in the human body occurs as a result of a combination of rolls, spins, and slides.
- Arollis a rotary movement, one bone rolling on another.
- Aspinis a rotary movement, one body spinning on another.
- Aslide是一个平移运动,滑动一个联合rface over another.
The video below gives a good 2 minute outline.
Types of Arthrokinematic Motion[edit|edit source]
- Joint Play: movement not under voluntary control (passive), can not be achieved by active muscular contraction.
- Component Movement: involuntary obligatory joint motion occurring outside the joint accompanies active motion – i.e. - scapulohumeral rhythm
Why Arthrokinematics Matters[edit|edit source]
The凸凹形规则is the basis for determining the direction of the mobilizing force whenjointmobilization gliding techniques are used to increase a certain joint motion.
The direction in which sliding occurs depends on whether the moving surface is concave or convex.
- 凹= hollowed or rounded inward
- Convex= curved or rounded outward
If the moving joint surface is CONVEX, sliding is in the OPPOSITE direction of the angular movement of the bone.
If the moving joint surface is CONCAVE, sliding is in the SAME direction as the angular movement of the bone.
Examples:
- Glenohumeral articulation:concave glenoid fossa articulates with the convexhumeral head
Glenohumeral posterior glide increases flexion and internal rotation
Glenohumeral anterior glide increases extension and external rotation
- Humeroradial articulation:convex capitulum articulates with the concaveradialhead
Dorsal or posterior glide of the head of radius increases elbow extension
Volar or anterior glide of the head of the radius increases elbow flexion
Hip posterior glide increases flexion and internal rotation
Hip anterior glide increases extension and external rotation
- Tibiofemoral articulation:concavetibialplateaus articulate on the convex femoral condyles
Tibiofemoral posterior glide increases flexion
Tibiofemoral anterior glide increases extension
- Talocrural joint:convex talus articulates with the concave mortise (tibia andfibula)
Talocrural dorsal or posterior glide increases dorsiflexion.
Talocrural ventral or anterior glide increases plantarflexion.
Resources[edit|edit source]
Kisner, C. & Colby, L.A. (2002). Therapeutic Exercise: Foundations and Techniques, 5th ed. F.A. Davis: Philadelphia.
References[edit|edit source]
References will automatically be added here, seeadding references tutorial.
- ↑My life Choice Osteokinematics VS Arthrokinematics Available from:https://www.youtube.com/watch?v=yzozxABe9S4(accessed 3.5.2021)