Objective: Custom foot orthoses (CFOs) are typically used for the prevention and cure of lower extremity injuries (LEIs). Typically, CFOs are designed and prescribed based on iterative loops including: (1) follow-up loops between the patient and the physician, and (2) design feedback loops between the physician and the fabricator. The current prescription methodology has some deficiencies, i.e. excessive time to satisfactory treatment, and low repeatability in custom fabrication because of missing alignment, soft tissue considerations, and subjective feedback. There are significant opportunities to develop a new CFOs prescription procedure which can improve accuracy prior to the fabrication process by reducing time through minimizing iterations. Methods: First, a novel “rapid evaluate and adjust device” (READ) prescription methodology is proposed for CFO design by combining the follow-up loops with design feedback loop. To support the idea of the READ prescription method a novel 3D ergonomic measurement system (3DEMS) is developed. The 3DEMS is designed for the following key targets to: (1) improve the communication between the patient/physician and the fabricator, (2) reduce time to satisfactory treatment, (3) improve repeatability by considering the alignment and the soft tissue deformations, (4) archive digitally with minimal data, (5) reduce the system complexity, and (6) validate with plantar pressure measurements (i.e. Novel Pedar ^® ). The design process of the 3DEMS involved the following steps: (1) 3D data collection at the desired loading, (2) nested optimization to determine optimal segment design, and (3) system fabrication considering alignment and feedback control. Results: The results show that the READ prescription method with 3DEMS can be used to recreate the medial longitudinal arch for a range of arch height indices (AHI) by using a minimal number of parameters i.e. 6 parameters, and significant increases in mean peak pressure are observed between optimized and barefoot or flat segments. Conclusion: This study establishes that the proposed READ prescription method with the 3DEMS may be used for CFOs prescription due to better communication between individuals in the follow-up and design loops, less time for satisfactory treatment, improved repeatability, archivable data, and low system complexity. Significance: The developed system may be used as measurement systems for CFOs, and in the future the proposed 3DEMS may prove highly important for the measurement of CFOs for flat feet.

中文翻译：

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快速评估和调整设备（READ）用于定制足部矫形器处方的可行性研究。

目的：习惯性足矫形器（CFO）通常用于预防和治疗下肢损伤（LEI）。通常，基于迭代循环来设计和规定CFO，这些循环包括：（1）患者和医师之间的跟进循环，以及（2）医师和制造者之间的设计反馈循环。当前的处方方法存在一些缺陷，即，由于缺少对准，软组织考虑和主观反馈，导致令人满意的治疗所需的时间过长，并且在定制制造中的可重复性低。开发新的CFO处方程序的机会很大，可以通过最大程度地减少迭代来减少时间，从而提高制造过程之前的准确性。方法：首先，通过将后续循环与设计反馈循环相结合，提出了一种新颖的“快速评估和调整装置”（READ）处方方法用于CFO设计。为了支持READ处方方法的思想，开发了一种新颖的3D人体工学测量系统（3DEMS）。3DEMS旨在实现以下关键目标：（1）改善患者/医师与制造商之间的沟通；（2）减少获得满意治疗的时间；（3）通过考虑对准和软组织变形来提高可重复性， （4）以最小的数据进行数字归档，（5）减少了系统的复杂性，和（6）与足底压力测量（即新型Pedar验证 ^® ）。3DEMS的设计过程涉及以下步骤：（1）以所需的负载进行3D数据收集；（2）嵌套优化以确定最佳段设计；以及（3）考虑对齐和反馈控制的系统制造。结果： 结果表明，使用3DEMS的READ处方方法可通过使用最少数量的参数（即6个参数）来重建一系列弓高指数（AHI）的内侧纵向弓，并且观察到平均峰值压力显着增加。优化的赤脚或平坦的路段。 结论： 这项研究建立了建议的带有3DEMS的READ处方方法可用于CFO处方，这是因为在随访和设计循环中个体之间的更好交流，更少的令人满意的治疗时间，改进的可重复性，可归档的数据，以及较低的系统复杂性。 意义： 开发的系统可以用作CFO的测量系统，将来，建议的3DEMS可能对扁平足CFO的测量非常重要。