Loss or impairment of the power of voluntary movement.
‘Slowness - bradykinesia (slow movement) and akinesia (inability to move) are common in people with Parkinson's disease.’
‘This is a hypokinetic disorder characterized by hypokinesia or akinesia, rigidity, and a rhythmic fine tremor at the rate of 3-6 cycles per second.’
‘An echocardiogram excluded major pericardial effusion, showing a non-dilated left ventricle with inferior wall akinesia and overall moderate function.’
‘In a previous report of Lyme-associated extrapyramidal features in 5 patients, 5 all of the patients exhibited akinesia, pains, and rigidity.’
‘Other signs include incontinence, late rigidity, akinesia, and tremor.’
‘In other cases akinesia, dyskinesia, waxy flexibility, and cogwheeling may occur instead of or in addition to the classic rigidity.’
‘These symptoms include motor rigidity, uncoordination, akinesia / hypokinesia, alterations of posture, and involuntary movements.’
‘Schizophrenic akinesia and catatonic symptoms may similarly resemble parkinsonian and dystonic symptoms.’
‘Parkinsonian side effects manifest themselves as tremor, rigidity, and akinesia individually or in combination.’
Origin
Mid 19th century from Greek akinēsia ‘quiescence’, from a- ‘without’ + kinēsis ‘motion’.
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