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(Stroke. 1996;27:1564-1570.)
© 1996 American Heart Association, Inc.
Articles |
Performance of the `Unaffected' Upper Extremity of Elderly Stroke Patients
the Centre de recherche en gerontologie et geriatrie (J.D., G.B., P.-M.R., M.G.), Sherbrooke, Quebec; Faculte de medecine (J.D., G.B.), Universite de Sherbrooke, Quebec; and Ecole de readaptation (D.B.), Universite de Montreal, Canada.
Background and Purpose The main objective of this study was to compare the sensorimotor performance of the unaffected upper extremity (UE) of elderly stroke patients with that of healthy elderly people.
Methods The group of stroke patients was composed of 43 hemiplegic/paretic subjects who had had a cerebrovascular accident at least 6 months earlier. They were 
60 years old, were right-handed before the stroke, had visual perception within normal limits, and showed no major cognitive impairments. A group of 43 healthy subjects matched for dominance, age, and sex was used for comparison. The main parameters of the performance of the unaffected UE of the stroke subjects and of the same side of the healthy subjects were measured with valid, reliable instruments. Some variables potentially related to the unaffected UE were also measured: affected UE motor function, functional independence, length of time since the stroke, self-perceived health status, activity level, and hand anthropometry.
Results Statistical analyses showed significant deficits in the unaffected UE of hemiplegic/paretic subjects compared with normal subjects with regard to the following parameters: gross manual dexterity, fine manual dexterity, motor coordination, global performance, and kinesthesia (P<.01 to P<.0001). No significant clinical or statistical difference was found for grip strength (P<.81), static and moving two-point discrimination (P=.21 and P=.12), or touch/pressure threshold (P<.91).
Conclusions Many factors (frequency of use of the unaffected hand, sensorimotor interaction tasks, severity of the deficits in corticifugal projections, and deficits in postural stabilization) could interact to provide the clinical picture obtained in the present study. (Stroke. 1996;27:1564-1570.)
Key Words: hemiplegia • motor activity • sensory testing, quantitative
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