IEEE Trans Neural Syst Rehabil Eng. 2019 Aug;27(8):1574-1588. doi: 10.1109/TNSRE.2019.2927094. Epub 2019 Jul 5.
This paper aims to develop a knowledge base and identify the promising research pathways toward designing lower limb prostheses for optimal biomechanical and clinical outcomes. It is based on the literature search representing the state of the art in the lower limb prosthesis joint design and biomechanical analysis. Current design solutions are organized in terms of fulfilling four key functional roles: body support, propulsion, task flexibility, and loading relief. Biomechanical analyses of these designs reveal that the hypothesized outcomes are not consistently observed. We suggest that these outcomes may be improved by incorporating tools that can predict user performance metrics to optimize the device during the initial design process. We also note that the scope of the solution space of most current designs is limited by focusing on the anthropomorphic design approaches that do not account for the person's altered anatomy post-amputation. The effects of the prosthetic joint behavior on whole-body gait biomechanics and user experience are likewise under-explored. Two research paths to support the goal of better predicting the user outcomes are proposed: experimental parameterization of designs and model-based simulations. However, while work in these areas has introduced promising new possibilities, connecting both to improve real-world performance remains a challenge.
本文旨在开发一个知识库，并确定有前途的研究途径，以设计出具有最佳生物力学和临床效果的下肢假肢。它是基于文献检索，代表了下肢假肢关节设计和生物力学分析的最新技术水平。目前的设计解决方案是根据满足四个关键功能角色来组织的：身体支撑、推进、任务灵活性和负载缓解。对这些设计的生物力学分析表明，假设的结果并不总是观察到。我们建议，通过引入可以预测用户性能指标的工具，可以在初始设计过程中优化设备，从而提高这些结果。我们还注意到，大多数现有设计的解决方案范围有限，因为它们侧重于不考虑截肢后人体解剖结构改变的拟人设计方法。假肢关节行为对整个身体步态生物力学和用户体验的影响也没有得到充分探索。为了更好地预测用户的结果，提出了两条支持目标的研究途径：设计的实验参数化和基于模型的模拟。然而，尽管这些领域的工作引入了有前途的新可能性，但将两者联系起来以提高实际性能仍然是一个挑战。
