Common Impairments of Basal Ganglia Flashcards
Inability to initiate movement;
associated with fixed postures
Akinesia
Seen in late stages of Parkinson’s
Disease; freezing episodes
Akinesia
Slow, involuntary, writhing, twisting,
“wormlike” movements; frequently
greater involvement in distal UEs
Athetosis
Degeneration of globus pallidus w/
breakdown of circuitry involving
basal nuclei and cerebral cortex
Athetosis
Decreased amplitude and velocity of
voluntary movement
Bradykinesia
Characteristic of Parkinson’s
disease
Bradykinesia
Involuntary, rapid, irregular, jerky
movements involving multiple joints; most apparent in UEs
Chorea
Movement disorder with features of both chorea and athetosis
Choreoathetosis
Commonly seen in pt with
Hungtinston’s Disease, rheumatic
fever, lyme disease, meningitis
Choreoathetosis
Sustained involuntary contractions of agonist and antagonist muscles
Torsions and spasms
Common in trunk & extremities;
can affect neck, face & vocal cords
Dystonia
(most common) type of
cervical dystonia
Stiff neck/ spasmodic torticollis
Large-amplitude sudden, violent, flailing
motions of the arm and leg of one side
of the body
Primarily involved axial and
proximal muscles
Lesion of contralateral subthalamic
nucleus (e.g. from stroke or
hemorrhage)
Hemiballismus
Abnormally increased muscle activity or
movement; irregular, jerky involuntary
movements in all extremities
Hyperkinesis
gait seen in Hyperkinesis
choreiform
pt taking
1st gen narcotics, alters inhibitory
pathway → no inhibition = increase
muscle activity
Extrapyramidal syndrome
Decreased motor response especially to
a specific muscle
c parkinson gait
Hypokinesis
small shuffling
steps & general slowness of
movement (hypokinesia) or total
loss of movement (akinesia) in
extreme cases
Parkinsonian gait
Increase in muscle tone causing greater
resistance to passive movement;
greater in flexor muscles of trunk and
extremities;
rigidity
two types of rigidity
lead-pipe &
cogwheel
uniform, constant
resistance felt by examiner as
extremity is moved through ROM;
more common
Lead-pipe
series of
brief relaxation or “catches” as
extremity is passively moved
commonly seen in PD patients
Cogwheel:
Involuntary, rhythmic, oscillatory
movement observed at rest
tremor (resting)
Tremors associated w/ lesions of
basal ganglia are noted in UE in the
form of
pill-rolling” movement
Patient manifests stoop posture in
standing & arms flexed; gait of patient
may present with short steps & is often
unable to stop
postural disturbance
Resting tremor is an affectation of
basal ganglia
In parkinson’s disease, whta is seen first
In PD pill-rolling tremor is seen first because it looks
like the patient is rolling a pill on the tip of their fingers
affectation of the putamen & globus
pallidus (lentiform)
May manifest as Hungtintons’s Disease
Choreoathetosis