Supplemental Digital Content is Available in the Text. Background and Purpose: Gait asymmetries are common after stroke, and often persist despite conventional rehabilitation. Robots provide training at a greater practice frequency than conventional approaches. However, prior studies of have found the transfer of learned skills outside of the device to be inadequate. The tethered pelvic assist device (TPAD) promotes weight shifting, yet allows users to independently navigate spatiotemporal aspects of gait. The purpose of this study was to evaluate feasibility and preliminary efficacy of a 5-day intervention combining TPAD training with visual feedback and task-specific overground training to promote improved force and stance symmetry in individuals after stroke. Methods: After baseline assessments, 11 participants chronically after stroke received 1 hour of practice for 5 consecutive days. Training sessions included visual feedback during TPAD treadmill training followed by overground gait training. Safety, perceived exertion, and adherence were recorded as measures of feasibility. Load and stance symmetry were reassessed after the intervention (posttraining) and again 1 week later. Results: No adverse events were reported. Mean (SD) perceived exertion (3.61 (0.23)) was low and did not significantly change throughout the intervention. Overall adherence was 96.4%. Load asymmetry was not significantly reduced on the treadmill from baseline to posttraining (P = 0.075). Overground stance symmetry significantly improved on posttraining (F = 8.498, P = 0.002), but was not sustained at follow-up. (See the Video, Supplemental Digital Content 1, available at: http://links.lww.com/JNPT/A311, which summarizes the study background, methods, and results.) Discussion and Conclusions: Results demonstrate this combined interventional approach was feasible and improved stance symmetry overground, yet further work should consider increasing training intensity and/or duration to induce gains lasting through follow-up.

中文翻译：

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基于机器人骨盆辅助和视觉反馈的基于跑步机的运动训练：可行性研究

补充数字内容在文本中可用。背景和目的：步态不对称在中风后很常见，尽管进行了常规康复治疗，但通常会持续存在。机器人以比传统方法更高的练习频率提供训练。然而，之前的研究发现在设备之外转移所学技能是不够的。系留骨盆辅助装置 (TPAD) 促进体重转移，但允许用户独立导航步态的时空方面。本研究的目的是评估将 TPAD 训练与视觉反馈和特定任务的地上训练相结合的 5 天干预的可行性和初步效果，以促进中风后个体的力量和姿势对称性的改善。方法：在基线评估之后，11 名中风后长期参与者连续 5 天接受 1 小时的练习。训练课程包括 TPAD 跑步机训练期间的视觉反馈，然后是地面步态训练。安全性、感知的劳累和依从性被记录为可行性的衡量标准。在干预（训练后）后和 1 周后再次评估负荷和站姿对称性。结果：没有报告不良事件。平均 (SD) 感知到的劳累 (3.61 (0.23)) 很低，并且在整个干预过程中没有显着变化。总体依从性为 96.4%。从基线到训练后，跑步机上的负荷不对称性没有显着降低（P = 0.075）。地面站姿对称性在训练后显着改善（F = 8.498，P = 0.002），但在随访中并未持续。（见视频，补充数字内容 1，