Kilbreath S L, Crosbie J, Canning C G, Lee M-J
School of Physiotherapy, University of Sydney, Sydney, Australia.
Disabil Rehabil. 2006 Dec 15;28(23):1435-43. doi: 10.1080/09638280600638307.
Purpose. To determine the extent to which inter-limb coordination in the execution of unimanual and bimanual tasks was impaired following stroke.Methods. Thirteen stroke survivors aged 55 - 77 years and 13 healthy, neurologically intact participants aged 57 - 86 years performed a unimanual and two bimanual tasks involving the relocation of single and paired objects. Movements were recorded using electromagnetic sensors attached to the wrists and a series of micro switches placed under the objects. Main outcome measures included time to complete components of the tasks; comparison between sides; deviation of the hands from a linear trajectory; coordination of the two sides as indicated by relative phase angle.Results. Stroke survivors took longer to complete the bimanual tasks, but did not deviate from the optimal trajectories more than the healthy participants. Both groups performed unimanual tasks faster than bimanual and stroke participants were only slightly less synchronised when performing bimanual tasks.Conclusions. In conclusion, in a group of stroke patients with reasonable strength, inter-limb coordination was mildly impaired. This impairment in coordination was not due to lateral deviation of the impaired limb.
目的。确定中风后单手和双手任务执行过程中肢体间协调受损的程度。方法。13名年龄在55 - 77岁的中风幸存者和13名年龄在57 - 86岁、神经功能正常的健康参与者进行了一项单手任务和两项双手任务，任务包括单个和成对物体的重新放置。使用附着在手腕上的电磁传感器和放置在物体下方的一系列微动开关记录动作。主要结局指标包括完成任务各部分的时间；两侧之间的比较；手部偏离直线轨迹的情况；由相对相位角表示的两侧协调性。结果。中风幸存者完成双手任务的时间更长，但与健康参与者相比，手部偏离最佳轨迹的程度并未更大。两组完成单手任务的速度都比双手任务快，中风参与者在执行双手任务时的同步性仅略低。结论。总之，在一组具有一定力量的中风患者中，肢体间协调存在轻度受损。这种协调性受损并非由于受损肢体的侧向偏差。
