Weakness is the primary contributor to finger impairment in chronic stroke
Weakness is the primary contributor to finger impairment in chronic stroke
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DOI：
10.1016/j.apmr.2006.05.013
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发表时间：
2006-09-01
影响因子：
4.3
通讯作者：
Rymer, William Z.
中科院分区：
文献类型：
--
作者：
Kamper, Derek G.;Fischer, Heidi C.;Rymer, William Z.
目的：评估几种神经和生物力学损伤机制对慢性偏瘫卒中幸存者手指和手部整体损伤的相对贡献。设计：重复测量设计。单位：临床研究室。参与者：30名慢性偏瘫中风幸存者。根据切多克-麦克马斯特中风评估，15名受试者有严重的手部运动障碍，15名受试者有中度损伤。干预措施：不适用。主要观察指标：生物力学因素刚度和静息屈曲扭矩，以及神经学因素痉挛、力量和共激活，通过使用定制的手操纵器、测功仪和肌电记录进行量化。检查手指掌指关节的被动和主动旋转。结果：虽然重度损伤组的受试者比中度损伤组表现出更大的被动刚度和静息屈曲扭矩(P
Objective: To assess the relative contributions of several neurologic and biomechanic impairment mechanisms to overall finger and hand impairment in chronic hemiparetic stroke survivors.Design: Repeated-measures design.Setting: Clinical research laboratory.Participants: Thirty stroke survivors with chronic hemiparesis. Fifteen subjects had severe hand motor impairment and 15 had moderate impairment, as measured with the Chedoke-McMaster Stroke Assessment.Interventions: Not applicable.Main Outcome Measures: The biomechanic factors stiffness and resting flexion torque, together with the neurologic factors spasticity, strength, and coactivation, were quantified by using a custom hand manipulator, a dynamometer, and electromyographic recordings. Both passive and active rotations of the metacarpophalangeal joints of the fingers were examined.Results: Although subjects in the severely impaired group exhibited statistically greater passive stiffness and resting flexion torque than their moderately impaired counterparts (P