Walking gait patterns Flashcards
Sagittal gait features
- stride length- heel contact to same foot heel contact
- cadence
- speed
Frontal gait features
-BOS (3-9 cm in adults0
Transverse gait features
foot progression angle- angle between line of progression and the alignment of the second ray of the foot
Foot progression angle in adults
+7 degrees of out toeing
Foot progression angle children
- prepubescent children +2 degrees out toeing
- post-pubescent (16yrs) +7 degrees
4 phases of gait
- weight acceptance
- single limb support
- early swing limb advancement
- late swing limb advancement
Weight acceptance
phases, what
- initial contact
- loading response
- body’s weight is transferred to reference limb
- shock absorption is important
Single limb support
phases, what
- midstance
- terminal stance
-single limb supports body, body moves in front of reference limb
Early swing limb advancement
phases, what
- preswing
- initial swing
- reference limb generates momentum through forward propulsion
- pushing off surface, then rapid flexing of reference limb to clear limb
Late swing limb advancement
phases, what
- midswing
- terminal swing
-reference limb is decelerated
Initial contact
foot contacts the ground
Loading response
BW is transferred to reference limb and shock is absorbed on a flexed limb
Midstance
body moves over a stationary foot and balance on one foot is maintained
Terminal stance
body progresses past stationary foot and balance is maintained
Preswing
generation of momentum for forward propulsion for SLA
Initial swing
clearance of swing limb
Midswing
deceleration of limb
Terminal swing
extended limb for step length and preparation for loading
Critical events at ankle
- heel first contact (IC)
- Controlled plantarflexion- 5 deg (LR)
- Controlled tibial advance (Mstance)
- Ankle dorsiflexion 10 deg w/ heel rise (Tstance)
- Rapid Plantarflexion 15 deg (Pswing)
- Dorsiflexion to 0 (Mswing)
Controlled tibial advance
in midstance, ankle moving from a PF at loading response to a slightly DF position at midstance
Critical events at knee
- controlled knee flexion 15 deg (LR)
- Passive knee flexion 40 deg (Pswing)
- Max knee flexion to 60 deg (Iswing)
- Knee extension to 0 (Tswing)
Critical events at hip
- Hip stability (LR)
- Trailing limb (Tstance)
- Hip flexion to 15 deg (Iswing)
- Max hip flexion to 25 (Mswing)