Advancements in power wheelchair joystick technology: Effects of isometric joysticks and signal conditioning on driving performance
Advancements in power wheelchair joystick technology: Effects of isometric joysticks and signal conditioning on driving performance
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DOI：
10.1097/01.phm.0000228519.54763.b4
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发表时间：
2006-08-01
影响因子：
3
通讯作者：
Boninger, Michael L.
中科院分区：
文献类型：
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作者：
Dicianno, Brad E.;Spaeth, Donald M.;Boninger, Michael L.
目标：估计有 125 000 名美国人患有运动障碍；那些妨碍使用电动轮椅独立移动的人可以受益于改进的控制装置。我们为等距操纵杆 OX 开发了可变增益算法 (VGA) 软件，使其能够模拟市售的运动感应操纵杆（MSX），但保留了等距控制的独特可定制功能。力传感算法 (FSA) 软件允许 IJ 作为简单的等距设备发挥作用。设计：使用费茨定律范式，我们使用标准 MSJ 和 U 以及 FSA 和 VGA 软件，对 11 名电动轮椅使用者的驾驶性能与地板目标进行了比较。结果测量为反应时间 (RT)、移动时间 (MT) 和驾驶准确性 (DA)。结果：带有 FSA 的 IJ 的 RT 明显短于 MSJ (P < 0.0020)，而带有 VGA 的 IJ 和 MSJ 之间的 MT 明显长于 (P < 0.0159)。结论：VGA 软件使 IJ 在 RT、MT 和 DA 方面的功能与 MSJ 类似。
Objective: An estimated 125 000 Americans with movement disorders; that preclude independent mobility in a power wheelchair could benefit from improved control devices. We developed variable gain algorithm (VGA) software for our isometric Joystick OX that allows it to emulate a commercially available motion-sensing joystick (MSX 'in performance but retain the unique customizable features of an isometric control. Force sensing algorithm (FSA) software allowed the IJ to function as a simple isometric device.Design: Using a Fitts' Law paradigm, we compared driving performance with floor targets using a standard MSJ and an U with both FSA and VGA software in 11 electric power wheelchair users with a variety of impairments. Outcome measures were reaction time (RT), movement time (MT), and driving accuracy (DA).Results: The IJ with FSA had a significantly shorter RT than the MSJ (P < 0.0020). The IJ with FSA had a significantly longer MT than the MSJ to far targets (P < 0.0159). No differences were found between the IJ with VGA and the MSJ with respect to RT or MT. No differences in DA were found among any of the joysticks.Conclusions: VGA software allowed the IJ to function similarly to the MSJ with respect to RT, MT, and DA.