Asthenia
Generalized muscle weakness
Asynergia
loss of ability to associate muscles together for complex movements
Delayed reaction time
increased time required to initiate voluntary movement
Dysarthria
disorder of the motor component of speech articulation
Dysdiadochkinesia
Impaired ability to perform rapid alternating movements
Dysmetria
Inability to judge the distance or range of a movement
Dyssynergia
movement performed in a sequence of component parts rather than as a single, smooth activity: decomposition
Hypotonia
decrease in muscle tone
Hypermetria
overestimation of distance or range needed to accomplish a movement
Hypometria
underestimation of distance or range needed to accomplish a movement
Nystagmus
rhythmic, quick oscillatory, back and forth movement of the eyes
Rebound Phenomenon
inability to halt forceful movements after resistive stimulus removed, patient unable to stop sudden limb motion
Tremor
involuntary oscillatory movement resulting from alternate contractions of opposing muscle groups
Intention tremor
oscillatory movement during voluntary motion: increases as the limb nears target: diminished or absent at rest
Postural tremor
exaggerated oscillatory movement of the body in standing posture or of a limb held against gravity
Titubation
rhythmic oscillations of the head, axial involvement of the trunk
Akinesia
inability to initiate movement, associated with fixed postures
Athetosis
slow, involuntary, writhing, twisting, “wormlike” movements; frequently greater involvement in distal UEs
Bradykinesia
decreased amplitude and velocity of voluntary movement
Chorea
involuntary, rapid, irregular, jerky movements involving multiple joints, most apparent in UEs
Choreoathetosis
movement disorder with features of both chorea and athetosis
Dystonia
sustained involuntary contractions of agonist and antagonist muscles
Hemiballismus
large-amplitude sudden, violent, flailing motions of the arm and leg of one side of the body
Hyperkinesis
abnormally increased muscle activity or movement
