It is well known that many physical factors such as age, severity of hemiplegia and muscle strength of unaffected extremities, have a great influence on physical improvement in stroke patients.
But little research has been done about the psychological influence on rehabilitation in stroke patients. In this study, we will try to clarify the influence of psychological condition on physical improvement in stroke patients. 143 stroke patients (73 men, 70 women, 61±12yr.), without ambulation on admission, were twice evaluated for physical ability, psychological condition and cognition; firstly at the time of admission and again after the completion of the stroke rehabilitation program.
Physical activity was evaluated by scoring the ability of the lower extremities to accomplish ruled movements and action. Psychological evaluation was done by means of the Cornell Medical Index (CMI) and the Manifest Anxiety Scale (MAS). Cognition was evaluated by copying a picture and cancellation. Patients were divided into several subgroups based on psychological condition and cognition, and their physical improvements during the period until discharge were compared.
1) Patients who scored over 30 points in the lower limb activity test showed similar physical improvement irrespective of psychological condition and cognitive ability.
2) Results aquired from patients who scored below 30 points in the lower limb activity test are described below.
i) Patients with abnormal psychological condition (CMI III, IV·MAS I, II) showed less improvement in lower limb activity and significantly worse restoration of ambulation than patients with borderline (CMI III, IV·MAS III, IV, V or CMI I, II·MAS I, II) and normal psychological condition (CMI I, II·MAS III, IV, V). No difference in physical improvement and restoration of ambulation were found between the borderline psychological group and the normal group.
Patients with a high CMI physical score (more than 31) showed significantly less improvement in lower limb activity and restoration of ambulation than patients with low (less than 20) or middle scores (from 21 to 30). Patients with a high CMI psychological score (more than 16) showed significantly less improvement in lower limb activity and restoration of ambulation than patients with low (less than 7) or middle scores (from 8 to 15).
ii) As regards the influence of psychological condition and cognition, the best improvement in lower limb activity and restoration of ambulation was observed in patients with both normal psychological condition and normal cognition. The worst improvement was observed in patients with both abnomal psychological condition and abnormal cognition.
3) Typically patients who could not achieve ambulation by discharge showed low physical activity, agnosia, and abnormal psychological condition on admission.
The results of this study indicate that psychological condition on admission could have a strong influence on physical improvement in stroke patients' rehabilitation. In order to make a more appropriate and more effective program of treatment, we wish to stress the necessity of paving attention to the psychological condition of patients as well as their physical complications.
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