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Abnormalities in diadochokinesia can be seen in the upper extremity, lower extremity and in speech. The deficits become visible in the rate of alternation, the completeness of the sequence, and in the variation in amplitude involving both motor coordination and sequencing.
Involuntary extension of the "normal" leg occurs when flexing the contralateral leg against resistance. To perform the test, the examiner should hold one hand under the heel of the "normal" limb and ask the patient to flex the contralateral hip against resistance (while the patient is supine), asking the patient to keep the weak leg straight while raising it.
In both tests, a positive sign is indicated by numbness, tingling or pain in the thumb, index and half of the middle finger. The presence of positive Tinel's sign, Phalen sign, Flick sign, or Upper limb neural tension test independently have weak evidence for diagnosing CTS. [5]
[1] [18] The compression of these spinal nerve roots that control sensation and movement in the lower body results in the tingling, pain and weakness NC patients often experience. However, because the severity of symptoms does not correlate well with the degree of stenosis and nerve root compression, a clear understanding of the specific ...
To perform a femoral nerve stretch test, a patient lies prone, the knee is passively flexed to the thigh and the hip is passively extended (reverse Lasègues). [2] The test is positive if the patient experiences anterior thigh pain. [2]
A neurological examination is the assessment of sensory neuron and motor responses, especially reflexes, to determine whether the nervous system is impaired. This typically includes a physical examination and a review of the patient's medical history, [1] but not deeper investigation such as neuroimaging.
Distraction tests: positive tests are rechecked when the patient's attention is distracted, such as a straight leg raise test; Regional disturbances: regional weakness or sensory changes which deviate from accepted neuroanatomy; Overreaction: subjective signs regarding the patient's demeanor and reaction to testing
Symptoms associated with central nervous systems disorders are classified into positive and negative categories. Positive symptoms include those that increase muscle activity through hyper-excitability of the stretch reflex (i.e., rigidity and spasticity) where negative symptoms include those of insufficient muscle activity (i.e. weakness) and reduced motor function. [5]