Gait 2 Flashcards
initial contact: GRF ankle
posterior
initial contact: GRF knee
anterior
initial contact: GRF hip
anterior
initial contact: ankle movement
neutral (0˚)
initial contact: knee movement
terminal extension (0)
initial contact: hip movement
flexed (~30˚)
initial contact: ankle muscles and action
- tibialis anterior (DF)
- concentric
initial contact: knee muscles and action
- quads
- concentric
initial contact: hip muscles and action
- hip extensors
- eccentric or isometric
Why is hip action eccentric?
- leg is finishing swing phase
- glutes control leg as it goes to initial contact
loading response: GRF ankle
slightly posterior
loading response: GRF knee
slightly posterior
loading response: GRF hip
slightly anterior, right through joint
loading response: ankle movement
plantarflexion (10-15˚)
loading response: knee movement
knee flexion (15˚)