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J Yeungnam Med Sci > Volume 14(1); 1997 > Article
Yeungnam University Journal of Medicine 1997;14(1):101-110.
DOI:    Published online June 30, 1997.
Distribution of Weakness at the Lower Extremity of Hemiparesis Patients.
Gun Ju Park, Jung Sang Hah, Wook Nyeun Kim
1Department of Neurology College of Medicine, Yeungnam University Taegu, Korea.
2Department of Neurology Andong Seongso Hospital Andong, Korea.
The maximal voluntary strength of knee extension and flexion on both the right and left sides was measured in patients with hemiparesis of upper motor neuron type and in a group of normal subjects. Significant differences of maximal voluntary strength were found between male and female but the ratio of flexor to extensor strength did not vary significantly between the sides, between the exs in normal subjects. The maximal voluntary strength of uninvolved side were not reduced significantly but involved side reduced significantly in patients. The ratio of flexor to extensor strength in hemiparetic side was significantly less than the ratio for the normal subjects but not significant difference in uninvolved side of patients. According to the above results, the maximal voluntary strength of flexion was more reduced than that of the extension on lower extremity of hemiparesis patients. The strength ratio of flexion to extension was a useful parameter for guiding the rehabilitation of hemiparesis.
Key Words: Hemiparesis, Strength ratio, Maximal voluntary strength


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