Gait Flashcards
Gait
limb motion to move forward in two stages
stance- 60 percent in contact with floor
swing- 40 percent
stride
one gait cycle
it is the same foot making contact again
broken into 3
weight acceptance
and
single limb support
and
swing
step
opposite foot
weight acceptance
stance
initial contact- position for limb stance
loading response- shock absorb and weight bear
single leg support
mid stance- stability- progress over foot
terminal stance
pre swing
swing
initial swing
mid swing
terminal swing
joints in initial contact
HIP: 30 degrees flexion hip extenders contract concentrically to pull hip into extension
knee- 5 degrees flexed knee extenders ecccentic to absorb ground contact
ankle- 0-5 degrees dorsiflex ankle dorsis ecccentric to lower foot to ground
joints in load response
hip- 5-10 degrees flexion hip extenders to extend hip concentrically to pull into extension
knee- 15-20 flexed knee extenders ecentric to prevent knee collapse
ankle 0-5 degrees ankle dorsies eccentric to lower foot and prevent foot slap
joints in mid stance
hip- 5-10 flexed hip exnteders to extend hip to complete pull
knee- 5-10 flexed extend knee concentrically to push knee into extension
ankle- 5-10 dorsiflexion akle plantar ecentric slow fwd motion of shaft
joints in terminal stance
hip- 5-10 extension, hip flexers ecentric to control hip extension
knee- 5-10 flex knee flexors concetric to bend knee for clearence
ankle 5-10 dorsiflexion ankle plantar ecentric to continue forward motion
joints in pre swing
hip- 10 degrees extension hip flexors flex by concentric pull thigh forward
knee 30-40 degrees flex and knee extensors ecentric to control knee collapse
ankle- 5-10 degrees plantar concentrically to propel
hip knee and ankle move in what plane
saggital
pelvis moves in
saggital and coronal plane
lower limb function in gait
acccel and deccel movement
stabilise body for efficent movement
produce appropriate movement requiered for locomotion
at start of stance the hip
flexed moves to less flexed ( extension )
then in swing phase moves from extension to flexion ( flexion _
allow pelvis and trunk to be erect
heel strike is start of gait
knee during gait is
always flexed to decrease shock absorption
greatest flexion is 60 degrees for clearence
ankle in gait will
1- plantarflex- reduce impact of heel strike
2- dorsiflex- advance body weight over foot
3- plantarflex- to prepare limb for swing
4- dorsiflex- during swing allows for clearence of foot
pelvic motion in gait
pelvis drops to non supported limb side
activate of controlateral glue medius and minimus if not leads to trendelbery gait
small tilt anterior and posterior 5 degrees
pelvis in heel strike
posterior tilit
pelvis in mid stance
anterior tilt
pelvis in swing
anterior tilt
pelvis in pre swing
posterior tilt
trunk movement in gait
thorax and shoulder
upper limb swings contralaterally
centre of gravity
point body weight is most concentrated
in anatomical position it is at s2 on sacrum anterior
lowest in double support
