Velocity-controlled Knee Movements in Patients with Compression Myelopathy.
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概要
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We studied velocity-controlled voluntary knee movements in 18 patients with compression myelopathy (11 males and 7 females). Mean age was 60.9 years old (range: 49 to 74 years). The patients were divided into F group (free gait, n=13) and S group (gait with support, n=5). Isometric peak torque values were measured in knee flexor and extensor muscles, and isokinetic peak torque values were determined in maximal voluntary concentric movements of those muscles at constant angle-velocities of 40, 80, 120, 160 and 180 degree/sec. The relative strength (% of isometric peak torque value) of the isokinetic motion was then calculated. The isometric strength of the knee flexor and extensors was larger in the F group than in the S group. This may suggest that the muscles in the S group had undergone disuse atrophy. In both groups, the relative strength decreased as the velocity increased, and, the degree of reduction in strength of the flexors at the high velocities of 160 and 180 degree/sec was significantly (p<0.05) greater in the S group than in the F group. These results indicated that isokinetic strength at a high velocity might reflect the gait ability in patients with compression myelopathy.
- 中国・四国整形外科学会の論文
中国・四国整形外科学会 | 論文
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