clonus


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Related to clonus: ankle clonus

clo·nus

 (klō′nəs)
n. pl. clo·nus·es
An abnormality in neuromuscular activity characterized by rapidly alternating muscular contraction and relaxation.

[New Latin, from Greek klonos, turmoil.]

clon′ic (klŏn′ĭk, klō′nĭk) adj.
clo·nic′i·ty (klō-nĭs′ĭ-tē, klŏ-), clo′nism (klō′nĭz′əm, klŏn′ĭz′əm) n.

clonus

(ˈkləʊnəs)
n
(Pathology) a type of convulsion characterized by rapid contraction and relaxation of a muscle
[C19: from New Latin, from Greek klonos turmoil]
clonic adj
clonicity n

clo•nus

(ˈkloʊ nəs)

n., pl. -nus•es.
a rapid succession of flexions and extensions of a muscle group during movement, often symptomatic of a nervous system disorder.
[1810–20; < New Latin < Greek klónos turmoil]
clon•ic (ˈklɒn ɪk) adj.
clo•nic•i•ty (kloʊˈnɪs ɪ ti, klɒ-) n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.clonus - convulsion characterized by alternating contractions and relaxations
convulsion - violent uncontrollable contractions of muscles
Translations

clo·nus

n. Gr. clono, serie de contracciones rápidas y rítmicas de un músculo.

clonus

n clonus m
References in periodicals archive ?
She was noted to have bilateral clonus, 3+ muscle stretch reflexes throughout, and loss of gag reflex.
Hoffman, Achilles clonus, and Babinski signs were positive bilaterally.
Passive range of motion of upper and lower extremities was determined to be within functional limits, and ankle clonus was noted bilaterally.
Initially, the data of 71 patients were retrieved from hospital records, which included age, gender, length of hospital stay, disease duration, etiology, neurological level, completeness, AIS assessment (ASIA impairment scale), the presence of spasticity in the upper and lower extremities, clonus, ambulation type and level (therapeutic/community ambulation) at admission and discharge, the orthosis, and ambulation aid, wheelchair, or other device prescriptions during inpatient rehabilitation.
Symptoms may include hypertonicity (increased muscle tone), clonus (a series of rapid muscle contractions), exaggerated deep tendon reflexes, muscle spasms, scissoring (involuntary crossing of the legs), and fixed joints.
These stimulus parameters were similar to those used to reduce spasticity, hyperreflexia, and clonus [1,2,4,8,22,28] using these stimulus settings, each subject tested to determine the sensory or 1.
Historically, clinicians have used tests and measures such as ankle clonus, Babinski sign, hyperreflexia, and the Hoffmann sign to screen for cervical myelopathy.
On examination he was paraplegic with bedsores, increased tone, brisk reflex and clonus of the lower limbs.
She had active volitional movement in both right extremities, no active movement in her left lower extremity with clonus (5 beats), and increased tone in her left upper extremity (LUE).
On examination, she had a fever of 39[degrees]C, and had several beats of clonus in the lower extremities.
and lower limb flexors distal weakness in peripheral predominantly affected neuropathies Decreased or absent abdominal Abdominal reflexes present reflexes Extensor plantar reflex Flexing plantar reflexes (Babinski sign) Clonus at ankle and patella Raised creatine kinase level in muscular diseases Flexor withdrawal reflex Abnormal electromyograph