Biomechanics Flashcards
General osteokinematics, arthrokinematics, joint play, grades for joint mobility, guidelines for articulation, steps for pt evaluation.
Roll
A new point on one surface always will be in contact with a new point on the other surface
Glide
One point on one surface always will be in contact with a new point on the other surface
Spin
movement of a bone around its anatomical axis
Osteokinematics: Pure Swing
the anatomical (longitudinal) axis moves the shortest distance between two points
Osteokinematics: Impure Swing
the anatomical (longitudinal) axis moves a longer distance between two points
Arthrokinematics: Cardinal Swing
the mechanical axis moves the shortest distance between two points
Arthrokinematics: Arcuate Swing
the mechanical axis moves the longer distance between two points
Arthrokinematics: Conjunct Rotation
the passive spin of a bone around its anatomical axis when the mechanical axis performs an arcuate swing
Arthrokinematics: Adjunct Rotation
any voluntary rotation of a bone
Resting Position
tissue relaxed as possible, intracapsular space as large as possible
Close-Packed Position
tissue as tight as possible, intracapsular space as small as possible - NEVER articulate in this position
Non-voluntary Planes: Distraction
applying a force perpendicular to the joint plane
Non-voluntary Planes: Translation
applying a force parallel to the joint plane
Convex on Concave
Opposite direction
Concave on Convex
Same direction
