Idk Flashcards
(30 cards)
What knee has a “braking” mechanism that control knee if I is made when knee isn’t fully extended to prevent knee flexion during stance
Safety knee (weight activated)
T/F: for a safety knee , swing phase occurs at the same rate regardless of the person change in gait speed
True
What happens when a 4 bar/ polycentric knee flexes?
Leads to shortening of the distal prosthesis to enhance toe clearance during swing
What knee enchance stance stability due to the mechanical characteristics
Polycentric/ 4 bar knee - K2
What knee provides stance control and variable cadence in swing phase
Hydraulic
What knee is the best control for stance and swing phase
Microprocessor
How does the single axis knee work
Swings freely in flexion/extension. Has no mechanical stability , must reply on use of GFR to keep knee stable instance
Can have manual locking option to ensure stability in stance
What prosthetic foot absorbs impact of IC (stable foot)
SACH
What prosthetic foot is a triplanar motin , ensures rapid foot flat during loading (assist in knee stability)
Multi axial
What is a energy storing foot
Dynamic response
What foot ensures rapid foot flat to promote knee extenion and assist in knee stability at loading
Single axis foot
Which prosthetic has no active prehension
Cosmetic/passive
Which prosthetic has a possible over us and nerve entrapament syndrome
Body powered
Which prosthetic has a reduced harness system allows to more comfort and ROM
Myoelectric/external powered
What is the mm activation in intial contact , mid stance , and toe off for running
IC
* glutes isometrically
* quad eccentrically —> knee flexion
* anterior TiB eccentrically —> control foot drop
* posterior TiB eccentrically
mid
* glutes concentrically
* Hammy concentrically —> tibial advancement
* posterior TiB eccentrically
Toe off
* iliopsoas eccentrically t gather potential energy for intial swing
* gastroc and soleus o
What is the mm activation for pre swing , mid swing , and terminal swing
Pre
* iliopsoas relseae potential energy and leg slingshots forward
Mid
* anterior TiB concentrically for DF
Terminal
* hammy eccentrically for knee extension
Characteristics of over strider
- step to far in front of COM
- knee flexion and DF at IC
- tibial inclination
Characteristics of collapser
- weak hip abductors
- contral hip drop
- knee flexion at mid stance
Characteristics of weaver
- cross over at IC
- lateral wear on shoes
Characteristics of bouncer
- pony tail
- noise
- vertical
Characteristics of glute amnesiac
- forward trunk lean
- decreased hip extension
What AFO would u use fora person with foot drop
PLS
What is the only kind really on in terminal stance
PF —> foot is in DF so they are helping control
What phase has the most DF
Terminal stance
