kinematics (frontal) Flashcards
Initial contact
is the heel the first point of contact?
subtalar /rearfoot - Perpendicular or slightly inverted
forefoot - abducted or adducted
pelvis - level / neutral
Loading response
Subtalar /rearfoot - eversion/ pronation (for shock attenuation)
Patella - rearfoot eversion or pronation causes internal rotation of the leg and medial tracking of the patella
pelvis - hip adduction causing lowering of the pelvis
midstance
Subtalar /rearfoot - eversion /pronation and ideally resupination begins prior to heel lift
pelvis - hip abduction (pelvis moves towards neutral
Terminal stance
subtalar /rearfoot - inversion /supination continues to maintain the stability of metatarsal joint
forefoot - abduction or adduction as heel rises
pelvis - maintained at a neutral position
preswing
subtalar /rearfoot - inversion /supination (the foot becomes a lever for propulsion and what toes are the last to leave toerocker)
swing phase
important to note ground clearance
subtalar /rearfoot - inversion (preparation for initial contact)
forefoot - usually abducted due to external rotation of swing leg
pelvis - remains the same as pre-swing and slightly lowered due to hip abduction