gait

what's happening in hip at heel strike

glut max and hammies work eccentrically to resist flexion moment
what's happening in hip at foot flat

glut max and hamstrings contract concentrically to bring hip into ext
what's happening in hip at midstance

ilipsoas activity continuing
what's happening in hip at toe off
- adductor magnus working ecc to control/stabilize pelvis
- iliopsoas activity continuing
rotation of tibia during gait

it's IR in foot flat, but otherwise it's ER
what's happening in knee at heel strike

quad eccentric contraction to control knee flexion/prevent buckling
what's happening in knee at foot flat

quads becomes concentric to bring femur over tibia
what's happening in knee at midstance

gastroc concentric -- starts knee flexion
what's happening in knee at toe-off
- quads eccentrically
- (the reaction force moves post to joint as knee flexes, creating a flex moment)
what's happening in foot/ankle at heel strike

DF ecc
what's happening in foot/ankle at foot flat

PF ecc
what's happening in foot/ankle at midstance

PF ecc
what's happening in foot/ankle at heel off

PF conc
what's happening in foot/ankle at toe-off

PF conc at peak activity, but become inactive when foot leaves ground

Author

shmvii

279154

Card Set

gait

Description

license exam

Updated

2014-07-18T17:34:54Z

Show Answers