Objective To evaluate the ability of force control of elbow and shoulder during isometric contraction in patients with chronic stroke. Methods From January to December, 2015, 22 chronic stroke patients and 12 healthy people were measured the maximum force dur-ing shoulder abduction/adduction and elbow flexion/extension with instrument for measuring force of upper extremity. The coefficient of variation was calculated. Results The maximum force was less in the patients than in the healthy controls (t>2.349, P<0.05), and the coeffi-cient of variation increased (t>1.974, P<0.05), except those of elbow extension. Conclusion The force measure and the coefficient of varia-tion can reflect the force control in shoulder and elbow motion in stroke patients.%目的 评价慢性期脑卒中患者肩关节和肘关节在等长性收缩运动中的力量控制能力.方法 2015年1月至12月,22例慢性脑卒中患者及12名健康对照者,采用手臂静力力量测量仪器测量在肩外展、内收和肘屈曲、伸展4组动作下的最大力量,计算变异系数.结果 脑卒中患者上肢最大力量低于健康人(t>2.349,P<0.05),除肘伸展外,变异系数也增加(t>1.974,P<0.05).结论 通过力量测试及变异系数的计算,能客观反映脑卒中患者肩肘运动的控制能力.
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