我们能否在不失去辅助功能的情况下重新设计肩部外骨骼以提高舒适性和实用性？
Can We Redesign a Shoulder Exosuit to Enhance Comfort and Usability Without Losing Assistance?
AI总结：
本研究重新设计了肩部外骨骼以提升舒适性和实用性，同时保持辅助性能，通过改进肩部运动功能和用户反馈显著提高了可穿戴性。
摘要：
减少的肩部活动能力限制了上肢功能和日常活动的性能，适用于各种条件。可穿戴外骨骼已显示出在帮助手臂抬升、减少肌肉努力和支撑功能性运动方面的潜力；然而，舒适性很少被作为显式设计目标优先考虑，尽管它强烈影响现实生活中的长期使用。本研究提出了一种重新设计的柔软肩部外骨骼（Soft Shoulder v2），旨在解决我们先前版本中发现的与舒适性相关的限制，同时保持辅助性能。同时，辅助功能也得到改善，从冠状面转向矢状面，以更好地支持功能相关的手部定位。在八名健康受试者中，对先前（v1）和重新设计（v2）模块进行了受控比较，他们执行了静态保持、动态举重和功能性拾取和放置任务。肌肉活动、运动学和用户报告的结果被评估。两个版本都增加了耐力时间，减少了三角肌激活，并在无动力肩部抬升中保持了透明性。然而，两者之间的差异在功能性任务和舒适性评估中最为明显。重新设计的模块促进了前臂定位，并通过增加横切面活动量达30度，而无需增加肌肉需求。用户报告的结果进一步表明，可穿戴性有了显著提高，与先前设计相比，感知压力明显较低，有效性、使用简便性和舒适性评分也明显更高。总的来说，这些发现表明，有针对性的、以用户为中心的设计改进可以提高舒适性和功能性交互，而不会影响辅助性能，推动了适合长期和日常使用的柔软外骨骼的发展。
英文摘要：
Reduced shoulder mobility limits upper-limb function and the performance of activities of daily living across a wide range of conditions. Wearable exosuits have shown promise in assisting arm elevation, reducing muscle effort, and supporting functional movements; however, comfort is rarely prioritized as an explicit design objective, despite it strongly affects real-life, long-term usage. This study presents a redesigned soft shoulder exosuit (Soft Shoulder v2) developed to address comfort-related limitations identified in our previous version, while preserving assistive performance. In parallel, assistance was also improved, shifting from the coronal plane to the sagittal plane to better support functionally relevant hand positioning. A controlled comparison between the previous (v1) and redesigned (v2) modules was conducted in eight healthy participants, who performed static holding, dynamic lifting, and a functional pick and place task. Muscle activity, kinematics, and user-reported outcomes were assessed. Both versions increased endurance time, reduced deltoid activation, and preserved transparency during unpowered shoulder elevation. However, the difference between them emerged most clearly during functional tasks and comfort evaluation. The redesigned module facilitated forward arm positioning and increased transverse plane mobility by up to 30 deg, without increasing muscular demand. User-reported outcomes further indicated a substantial improvement in wearability, with markedly lower perceived pressure and higher ratings in effectiveness, ease of use, and comfort compared to the previous design. Taken together, these findings show that targeted, user-centered design refinements can improve comfort and functional interaction without compromising assistive performance, advancing the development of soft exosuits suitable for prolonged and daily use.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
