期刊
EXPERIMENTAL BRAIN RESEARCH
卷 222, 期 1-2, 页码 65-75出版社
SPRINGER
DOI: 10.1007/s00221-012-3197-2
关键词
Turning; Cerebellar ataxias; Gait analysis; Segmental reorientation
Turning while walking is a common but demanding task requiring modification of the motor program from linear walking to lateral turning and it is associated with a high risk of falls. Patients with cerebellar ataxia have unstable gait and report a high incidence of falls. In the present study, we investigated the motor strategies adopted by ataxic patients when performing turns of different degrees and directions of rotation. Ten ataxic patients and 10 controls were analyzed while performing 30A degrees/90A degrees turns to the right/left. We recorded the number of completed turn tasks, the number of steps needed, and the time taken to complete the task, time-distance parameters and the onset of head, trunk and pelvis reorientation. The ataxic patients were less able to complete 90A degrees turns, displayed a greater stride width, shorter step length, and greater number of steps when turning, and were unable to flexibly adjust their stride width across the turning task. The duration of the turning task and of the segmental reorientation did not differ from control values. Our findings indicate that ataxic patients have more difficulties in performing large turns and adopt a series of compensatory strategy aimed at reducing the instability associated with turning, such as enlarge the base of support, shorten the step length, increase the number of steps, and use the multi-step rather than the spin-turn strategy. Given the high risk of falls related to this task, it would be useful to include turning training in the rehabilitation protocol of ataxic patients.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据