Module 8 Flashcards
Why do we look at gait pattern?
Looking for changes in gait and gait quality (before and after surgery, such as selective dorsal rhizotomy)
-Quantitive information to monitor rehab process and outcomes
-Estimation of fall risk
-Trajectory of centre of pressure
-Gait changes and memory loss (dementia)
-Cognitive task (a series of subtraction whilst walking- screen people at risk and early intervention)
-Mood and gait correlation
-Forensic and gait recognition (walking pattern as an identification key, China authorities use gait surveillance)
-Potential privacy issues
-Personal ID like your finger print
What does the stance phase consist of?
Loading response, mid stance, terminal stance and pre-swing
What does the swing phase consist of?
Inital swing, mid swing, terminal swing
What are the stages of gait (initial contact etc)
Initial contact, opposite toe off, heel rise, opposite initial contact, toe off, feet adjacent, tibia vertical
What are the stages of gait (loading response etc)
Loading response, mid stance, terminal stance, pre swing, initial swing, mid-swing and terminal swing
Tempo spatial parameters of gait
-Speed: distance per time unit (metres per second)
-Cadence: number of steps per a time unit (step per minute)
-Step length: Distance between the same point on each foot (usually the heel) during same time point of double limb support phase
-Stride length: Distance travelled between two successive foot strikes
What is gait kinematics?
Joint motion during walking
Hip flexion and extension during gait cycle (degrees of motion and %)
-30 degrees of flexion at heel strike (hip is in flexion)
-Pushing off using hip extensors using calf and plantarflexion
-Extension as we move off (20 degrees of extension)
-Swing causes us to come back into flexion so we can put our foot back for the next heel strike
Knee flexion and extension during gait cycle
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Ankle flexion during gait cycle
Hip adduction during gait cycle
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