gait and gait analysis Flashcards
COG is highest at which phase
during single limb support or midstance
COG is lowest at which phase
during double limb support - initial contact and pre swing
60% of gait cycle
stance phase
40% of gait cycle
swing phase
what makes up swing phase
Acceleration - 10% of swing phase
Midswing - 80% of swing phase
Deceleration - 10% of swing phase
double support is what percent f the cycle
20% - 10 on heel strike and 10 on toe off
discuss heel strike
30-0-0; tib ants dflex the foot
discuss midstance
semiflex knees, quads contract to prevent bucking, dflexors active
discuss acceleration or toe off
knee flexes and ankle plantarflexes
onting hip flexion
discuss terminal swing
eccentric firing of hamstrings in prep for heel strike ule
when the body has low COG, how does body raise COG
ext hip - pelvic tilt - ext knee - pflex
when the body has high COG, how does body lower COG
lateral pelvic tilt - gluts med fire to control it; knee flexion during midstance; dflex
what are the 6 determinants of gait (braddom)
pelvic rotation
pelvic tilt
knee flexion
ankle flex/ext mechanis
knee ankle foot rotation
lateral motion of pelvis
what are the 4 determinants of gait (de lisa)
pelvic rotation
pelvic obliquity
lat. displacement
interchange bet knee, ankle and foot
hip flexors peak activity during _____
early swing
