Gait Flashcards
Phases
Stance Phase (60%) Swing Phase (40%)
Events
IC TO HO FA TV
What event happens at end of stance phase and at beginning of swing phase
Toe off (R)
Stance phase - 3 periods
Double support - single support (R) - double support
Double = 10% each
Single = 40%
Swing phase - 1 period
Single support (40%) Left
During initial double support what is happening
Transferring weight
“Loading Response” (0-10%)
Weight of the leg in question is getting the body weight
Single support phase can be broken into
Mid stance and terminal stance
Mid stance
foot is flat on the ground
ends with HO (R)
10-30%
Terminal Stance
30-50%
Ends with L IC
Starts with R HO
Last double support
Preswing - before swing starts
50-60%
Ends with R TO
Stance Phase broken into 4 periods
Loading response 10
Mid Stance 20
Terminal Stance 20
Preswing 10
Swing phase starts with
TO (R) of ipsilateral leg
Swing phase broken into 3 periods
Initial Swing
Mid Swing
Terminal Swing
Initial Swing
Ends with FA (when ankles cross each other)
13%
Mid Swing
FA until TV
Tibia becomes vertical
14%
Terminal Swing
TV until IC (R)
13%
High heels - which period during swing would be short
Terminal Swing
base of support is very small - HC is very minimal - usually come with foot flat
Over a gait cycle, how long in double support
20%
Over gait cycle, how long in single support
80%
Pelvic Angular Motions with Gait and their planes
Pelvic Drop = Frontal (Obliquity) 7 deg
Tilt = Sagittal 4 deg
Rotation = Transverse 10 deg
Frontal - Obliquity
The support side is higher than the swing side due to leverage system
COG is medial to hip joint
Contralateral drop = positive
7 degrees
Sagittal
Pelvic Tilt Repeats itself in single gait cycle post - ant - post - ant Ant tilt = positive 4 degrees IC = post tilt Ant tilt = pick leg up and starts to swing forward
Transverse
Rotation
10 degrees
Ipsilateral hemipelvis forward = positive - rotation to the opposite side
RHC to RHC - one cycle - rotate left to rotate left
