Human Engineering Research Laboratories and Center of Excellence in Wheelchairs and Related Technology, VA Pittsburgh HealthCare System, 7180 Highland Drive, Pittsburgh, PA 15206, USA.
Arch Phys Med Rehabil. 2011 Aug;92(8):1298-304. doi: 10.1016/j.apmr.2011.03.011.
Cooper RA. Comparison of virtual wheelchair driving performance of people with traumatic brain injury using an isometric and a conventional joystick.
To compare wheelchair driving performance in a driving simulator using a conventional joystick and an isometric joystick.
Randomized, cohort study.
A research facility based in a hospital or in an independent living center.
Participants (N=20; 12 men, 8 women; mean age ± SD, 30.62±10.91 y) who were at least 1 year post-TBI.
Driving performance using an isometric joystick compared with a conventional movement joystick.
Average trial completion time, and trajectory-specific measures measured orthogonal to the center of driving tasks: root mean squared error, movement offset, movement error, and number of significant changes in heading.
After statistically controlling for driving speed, participants were able to complete the driving tasks faster with an isometric joystick than while using a conventional movement joystick. Compared with the conventional joystick, an isometric joystick used for driving forward demonstrated fewer driving errors. During reverse driving the conventional joystick performed better.
The customizable isometric joystick seems to be a promising interface for driving a powered wheelchair for individuals with TBI.
库珀 RA。使用等距和传统操纵杆比较创伤性脑损伤患者的虚拟轮椅驾驶性能。
比较使用传统操纵杆和等距操纵杆在驾驶模拟器中的轮椅驾驶性能。
随机、队列研究。
基于医院或独立生活中心的研究设施。
参与者（N=20；12 名男性，8 名女性；平均年龄±标准差，30.62±10.91 岁），至少有 1 年创伤性脑损伤史。
使用等距操纵杆与传统运动操纵杆的驾驶性能比较。
平均试验完成时间，以及与驾驶任务中心正交的轨迹特定测量值：均方根误差、运动偏移、运动误差和航向显著变化次数。
在统计上控制驾驶速度后，参与者使用等距操纵杆完成驾驶任务的速度比使用传统运动操纵杆更快。与传统操纵杆相比，用于向前驾驶的等距操纵杆显示出较少的驾驶错误。在倒车行驶时，传统操纵杆表现更好。
可定制的等距操纵杆似乎是一种有前途的接口，可用于为 TBI 患者驾驶动力轮椅。
