gait mid term Flashcards
gait periods
stance phase
swing phase
stance phases
initial contact
loading response
midstance
terminal stance
pre swing
heel strike angles
hip 30 flexion
knee full extension
ankle neutral position
foot supinated
line of gravity in heel strike
posterior to the ankle
in front of the knee and hip
terminal stance
gait cycle is 30-50%
10-degree hip extension
knee flexion
ankle in plantar flexion
aim is to remove leg from the ground
line of gravity passes behind the hip, in front of the knee and ankle
swing phase
initial swing
mid swing
terminal swing
initial swing
it begins as soon as toes leave the ground
gait cycle begins with 60-73% and ends when foot reaches the level of the limb
hip and knee flexion increase and dorsiflexion in ankle occurs
the goal is to quickly move leg on the air
determinants of the normal gait
vertical and lateral displacement of the gravity center
pelvic rotation
pelvic tilt
width of support gait
the cadence of the gait
kinematic
why does center of gravity change in vertical direction
because the gluteus medius contracts on that side and lifts the pelvis up on the opposite direction
why does lateral displacement of gravity occurs
the gluteus medius pulls the place where it stabilizes when contracting downwards and laterally
short leg gait
=when 0-4cm pelvic drop on the short side
=5 to 9cm short foot brought to equinus position
=10+ cm compensation is difficult it either short side pelvic lower
short side brought to foot appendix
health side shorten leading to recurvatum or varus/valgus
support should be used
tightness of gluteus muscles can cause this
pathological gait
=coxa Vara/Valga
=hip joint dislocation
=Trendelenburg symptoms achieved
=weak gluteus medius and TFL
=to stabilize the hip the patient bring the trunk to lateral flexion in mid stance phase this causes the hip to be stabilized with external forces instead of muscles
=waddling occurs if it is two sided
antalgic gait
pain due to pathologies that develop in lower extremity joint, pelvis and lumbar region
painful gait caused by circulatory disorders
Sacro lumbar problems
joint pathologies
weight is taken from the painful side and given to the healthy side
it is developed and typical
limping is observed in later steps not the first few steps
foot is in normal position
spastic gait
arm in adduction
forearm and wrist flexion
palm and hand pronation
in lower extremities extension prevails
not possible to flex the joints
relative length in paralytic side
foot forced into echinovarus
pelvic elevation, Abd, circumcision. to move to swing phase
Stepage gait as a result of ankle dorsiflexors weakness causing inability to lift foot
Scissoring gait = spasticity of the adductor and medial hamstrings
ataxic gait
gait impairment in spinal ataxia as a result of spinal cord lesion or proprioceptive pathways in the brain
In children=brainstem lesion
in adult= multiple sclerosis
cerebral ataxia= gait is irregular and unstable + walking surface is wide can happen with eyes open or closed