Discrimination of Walking Ability Using Knee Joint Extension Muscle Strength in Stroke Patients.
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概要
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The isometric knee joint extension muscle strength required for walking was investigated in stroke patients. The subjects were a group of 17 patients who could walk outside parallel bars with a T-cane (ambulation group) and a group of 13 patients who could not walk outside parallel bars with a T-cane (impossible group). The proportion of muscle strength in the affected side to body weight (%) in the ambulation group, 29.7 ± 9.29%, was significantly larger than the impossible group, 9.68 ± 6.94%, at p<0.01. In addition, the non-affected side muscle strength (%) in the ambulation group, 40.9 ± 11.1%, was significantly larger than the impossible group, 32.0 ± 8.80%, at p<0.05. The discrimination point of the affected side muscle strength (%) was 18.3% for the discrimination of ambulation group and impossible group by Mahalanobis distance using only 1 factor, and the positive discrimination rate was 93.3%. In the discrimination using non-affected side muscle strength (%) by Mahalanobis distance, the discrimination point was 36.0%, and the positive discrimination rate was 66.7%. In the discriminant analysis using affected side muscle strength (%) and non-affected side muscle strength (%), using 2 factors, the positive discrimination rate was 93.3%, and it was equal to the discrimination using only the affected side muscle strength (%). Thus, walking outside parallel bars with a T-cane was possible in patients with knee joint extension muscle strength over 20% body weight on the affected side.
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