OptiFit Wheelchair Fitting System

OptiFit 轮椅适配系统

• 批准号: 6880211
• 负责人: Peter William Axelson
• 金额: $ 10.41万
• 依托单位: BENEFICIAL DESIGNS, INC.
• 依托单位国家: 美国
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-03-01 至 2007-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6880211
• 关键词: assistive device /technology; biomechanics; clinical research; ergonomics; human subject; injury prevention; muscle strength; person with disability; rehabilitation; shoulder; technology /technique development

DESCRIPTION (provided by applicant): There, is a high incidence of overuse injuries among manual wheelchair users. One method to prevent the development or delay the onset of injuries is to reduce the physical demand on the user during wheelchair propulsion. Configuration of the wheelchair can have a significant effect on the effort required to propel the wheelchair; however, the optimal setup required to minimize demand on the user is not known. The goal of this project is to develop the OptiFit system, a clinical tool for determining the optimal wheelchair configuration for a specific user. The wheelchair configuration variables that most influence propulsion ergonomics will be determined through a series of studies involving manual wheelchair users. The primary variables to be investigated include: shoulder-to-hub distance, shoulder-to-hub angle, seat angle, back support angle, back support height, wheel camber, and wheel diameter. Propulsion efficiency will be evaluated with respect to user characteristics, such as arm length, range of shoulder extension, and upper extremity strength. The algorithm for the OptiFit system will be developed based on statistical correlations between subject characteristics and propulsion outcome measures. Use of the OptiFit system in clinical settings will assist rehabilitation professionals in providing wheelchairs that are optimally configured for each user. Maximizing propulsion ergonomics through an optimal wheelchair setup will likely reduce the incidence and severity of overuse injuries.

描述（由申请人提供）：手动轮椅使用者过度使用伤害的发生率很高。防止损伤发生或延迟损伤发生的一种方法是减少轮椅推进过程中对使用者的体力需求。轮椅的配置会对推动轮椅所需的力产生重大影响；然而，最小化用户需求所需的最佳设置尚不清楚。该项目的目标是开发 OptiFit 系统，这是一种临床工具，用于确定特定用户的最佳轮椅配置。最影响推进人体工程学的轮椅配置变量将通过涉及手动轮椅使用者的一系列研究来确定。要研究的主要变量包括：肩部到轮毂的距离、肩部到轮毂的角度、座椅角度、靠背支撑角度、靠背支撑高度、车轮外倾角和车轮直径。推进效率将根据用户特征进行评估，例如臂长、肩部伸展范围和上肢力量。 OptiFit 系统的算法将根据受试者特征和推进结果测量之间的统计相关性来开发。在临床环境中使用 OptiFit 系统将有助于康复专业人员提供针对每个用户进行最佳配置的轮椅。通过最佳的轮椅设置最大化推进人体工程学将可能减少过度使用伤害的发生率和严重程度。