Sunnerhagen K S, Svantesson U, Lönn L, Krotkiewski M, Grimby G
Department of Rehabilitation Medicine, Sweden.
Arch Phys Med Rehabil. 1999 Feb;80(2):155-61. doi: 10.1016/s0003-9993(99)90113-2.
To evaluate muscular performance and appearance in patients with prior stroke who were ambulatory.
Nonrandomized study.
University hospital laboratory.
Sixteen persons (11 men, 5 women) with minor motor impairments, 6 to 24 months after stroke, were included. As reference, data were used from a population-based sample of 144 men and women.
Muscle performance was evaluated using a Kin-Com dynamometer in both the affected and the nonaffected leg. Peak isometric strength was measured at a 60 degree angle in both extension and flexion. Maximal isokinetic strength was measured at 60 degrees/sec and at 180 degrees/sec. Endurance was evaluated during isometric and dynamic knee extensions. Muscle biopsies were taken on nine patients and muscle tissue areas were determined with computed tomography.
The affected leg was weaker but not different in relative endurance compared with the nonaffected side. The performance of the nonaffected side was somewhat lower than that of a matched reference population. No major difference in fiber composition between the affected and nonaffected legs was noted, except for a lower degree of capillarization in the affected leg.
In well-functioning stroke patients with good motor performance, further muscle training that includes resistance exercise might be indicated.
评估能够行走的既往中风患者的肌肉功能和外观。
非随机研究。
大学医院实验室。
纳入16名（11名男性，5名女性）中风后6至24个月有轻微运动障碍的患者。作为对照，使用了来自144名男性和女性的基于人群样本的数据。
使用Kin-Com测力计评估患侧和非患侧腿部的肌肉功能。在伸展和屈曲60度角时测量等长肌力峰值。在60度/秒和180度/秒时测量最大等速肌力。在等长和动态膝关节伸展过程中评估耐力。对9名患者进行肌肉活检，并通过计算机断层扫描确定肌肉组织面积。
患侧腿部较弱，但与非患侧相比相对耐力无差异。非患侧的表现略低于匹配的对照人群。患侧和非患侧腿部的纤维组成无重大差异，但患侧腿部的毛细血管化程度较低。
对于运动功能良好的中风患者，可能需要进一步进行包括抗阻运动在内的肌肉训练。
