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PUBMED FOR HANDHELDS

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  • Title: Correlation of spasticity with hyperactive stretch reflexes and motor dysfunction in hemiplegia.
    Author: Lin FM, Sabbahi M.
    Journal: Arch Phys Med Rehabil; 1999 May; 80(5):526-30. PubMed ID: 10326915.
    Abstract:
    OBJECTIVES: To study the correlation between spasticity and motor dysfunction in the wrist-hand unit of adult hemiplegic patients, and to investigate the correlation between clinical spasticity and hyperactive stretch reflexes. STUDY DESIGN: A survey study with a sequential case series of subjects. SETTING: Neuromuscular Research Laboratory, School of Physical Therapy, Texas Woman's University, Houston, TX. SUBJECTS: Sequential sample recruited from local stroke support groups: 10 patients with chronic hemiplegia caused by cerebral vascular accident who had various degrees of spasticity in the wrist joint. OUTCOME MEASURES: Modified Ashworth Scale, amplitudes of stretch reflexes for wrist flexors, grip strength, active range of motion of the wrist joint, and Fugl-Meyer test. RESULTS: Strong reverse correlation was found between spasticity and grip strength, the Fugl-Meyer test scores, and the Box and Blocks test scores (p = .001 to .005). Results also indicated a strong and consistent correlation between spasticity and reflexive electromyographic activities of the stretch reflex recorded from active muscles (p = .005 and .007), but not between spasticity and torque response of the stretch reflex. CONCLUSIONS: The degree of wrist spasticity is associated with impaired hand function in hemiplegic patients, and hyperactive electromyographic response of the stretch reflex, recorded from active muscles, is a valid indicator of spasticity.
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