Locomotion-Assessment and Intervention In Persons w/Brain Injury Flashcards
what are the typical structures impaired in pw stroke?
SMA, pre-motor cortex
M1 motor cortex (+/-BS)
sensory cortex
frontal lobe
when the pre-motor cortex is impaired in pw stroke, what is the impairment?
they can’t figure out how to set their posture to take a step
what structure is responsible for the motor plan of gait?
SMA and pre-motor cortex
what structure is responsible for the motor output for gait?
the M1 motor cortex
what system functions are typically impaired in pw stroke?
motor fxn
sensory fxn
postural alignment
gait patterns impairment
what motor fxn impairments are typical in pw stroke?
dec active, fractionated (isolated) motor control
abnormal tone, typically hypertonicity and clinical hypertonicity
chronic learned non-use and secondary MSK impairments, weakness
what sensory fxn impairments are typical in pw stroke?
hemisensory deficits
proprioception and kinesthesia in a % if the primary somatosensory cortex is affected
what postural alignment impairment is typical in pw stroke?
asymmetrical WB in standing
what gait patterns impairments are typical in pw stroke?
typical “classic” stroke gait deviations
increased clinical hypertonicity
t/f: bc the MCA is the most commonly affected artery in stroke, gait tends to look very similar in pw stroke in the acute phase
true
t/f: walking is mediated by complex neural systems both automatic and voluntary
true
t/f: damage to all BS descending pathways and corticospinal tracts decrease fractionated mov’t
true
what is the postural alignment of the limbs in pw stroke?
assymetrical WB bw limbs
involved limb in relative ER and adduction w outtoeing
what is often the cause of relative ER and adduction w outtoeing in the acute phase in pw stroke?
often from retraction
what is often the cause of relative ER and adduction w outtoeing in chronic phase in pw stroke?
often from ROM deficits
what is the postural alignment of the trunk on the involved side in pw stroke?
trunk shortening
scap depression and Retraction
pelvic retraction
what is often the only active muscle control in pw stroke?
adductors
t/f: pw stroke will often use the adductors to advance the limb forward in gait
true
in the acute phase, what are postural alignment impairments likely due to?
lack of activation
in the chronic phase, what are postural alignment impairments likely due to?
likely due to sitting a lot and getting stuck like that
what muscles are often the strongest in pw stroke?
extensor synergy muscles
t/f: in pw stroke, the trunk leans towards the involved side w/scap and pelvic retraction
true
what is the problem with unilateral ADs in pw stroke?
it promotes even more lean to the uninvolved side
what is the locomotor central pattern generator (CPG)?
a complex network of spinal interneurons to generate rhythmic, alternating activities of flexion and extension at the hips and knees