Gait (Horizontal, Trunk, and UE Kinematics) Flashcards
(23 cards)
Horizontal Plane Kinematics
Pelvis
Initial 15-20% of GC
Pelvis IR
Horizontal Plane Kinematics
Pelvis
Rest of stance phase
Rt LE begins to ER
Horizontal Plane Kinematics
Pelvis
Swing phase of Rt LE
Pelvis rotates in IR
Horizontal Plane Kinematics
Pelvis
Describe the correlation between increasing speed and pelvic rotation
More rotation with increasing speed to increase step length
Horizontal Plane Kinematics
Femur
ROM
6-7° IR/ER in each direction
Horizontal Plane Kinematics
Femur
Heel contact
IR for the first 15-20% of GC
Horizontal Plane Kinematics
Femur
20% of GC
ER until just after toe off
Horizontal Plane Kinematics
Femur
Swing phase
Mostly IR
Horizontal Plane Kinematics
Tibia
same as femur
6-7° IR/ER in each direction
Horizontal Plane Kinematics
Ankle and Foot
Insiginificant
Horizontal Plane Kinematics
Knee
Highly variable rotation
Difficult to interpret
Horizontal Plane Kinematics
Trunk and head follo\w translation of:
Head and trunk movements follow translation of CoM
Horizontal Plane Kinematics
Trunk
Direction and ROM
Rotates w/ shoulder girdle total of 7-9°, opposite of the pelvis
Horizontal Plane Kinematics
Limited trunk motion increases EE by:
Up to 10%
Upper Extremities Kinematics
Shoulders
as hip extends
ipsilateral shoulder flexes
Upper Extremities Kinematics
Shoulders
heel contact
maximally extended 25°
Upper Extremities Kinematics
Shoulders
By 50% of GC
Moves into flexion (max 10°)
Upper Extremities Kinematics
Shoulders
In 2nd half of GC
Extends to 25° by next heel contact
Upper Extremities Kinematics
Shoulders
Impact of movement with speed
Movement increases with greater speed
Upper Extremities Kinematics
Shoulders
If arm swing is limited?
Less stability and more energy expenditure
Upper Extremities Kinematics
Elbow
Heel contact
20° of flexion
Upper Extremities Kinematics
Elbow
First 50% of GC
elbow flexes
max 45°
Upper Extremities Kinematics
Elbow
Next 50% of GC
As shoulder extends, elbow extends to return to 20° of flexion