Novel instrumented frame for standing exercising of users with complete spinal cord injuries.
Novel instrumented frame for standing exercising of users with complete spinal cord injuries.
复制标题
新型器械框架，用于脊髓完全损伤的用户进行站立锻炼。
DOI：
10.1038/s41598-019-49237-3
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发表时间：
2019
影响因子：
4.6
通讯作者：
Zoulias ID
中科院分区：
文献类型：
--
作者：
Zoulias ID
本文介绍了一种功能性电刺激（FES）站立系统，用于脊髓损伤（SCI）患者的骨密度（BMD）康复。BMD恢复通过降低骨折风险为SCI患者提供了更高的生活质量。站立系统包括一个装有测力板和测力传感器的仪器框架，一个运动捕捉系统和一个专门建造的16通道FES单元。该系统可以同时记录和处理各种生物力学数据，以产生肌肉刺激，使SCI用户能够安全地站立和锻炼。运动游戏为用户提供视觉反馈，以在锻炼期间辅助上身姿势控制。为了验证该系统，使用了交替的重量转移练习; 3名完全SCI的参与者每周两次在该系统中锻炼1小时，持续6个月。我们观察到地面反作用力超过70%的全身重量分布在每个锻炼周期的支持腿。在六个月的时间里，每个参与者的运动表现都得到了改善，支撑腿的负荷增加了13.88个百分点。重要的是，所观察到的地面反作用力比其他报告对BMD有积极影响的研究更大。这种新型仪器的目的是研究负重站立疗法，旨在确定下肢关节力作用和姿势运动学的生物力学。
This paper describes a Functional Electrical Stimulation (FES) standing system for rehabilitation of bone mineral density (BMD) in people with Spinal Cord Injury (SCI). BMD recovery offers an increased quality of life for people with SCI by reducing their risk of fractures. The standing system developed comprises an instrumented frame equipped with force plates and load cells, a motion capture system, and a purpose built 16-channel FES unit. This system can simultaneously record and process a wide range of biomechanical data to produce muscle stimulation which enables users with SCI to safely stand and exercise. An exergame provides visual feedback to the user to assist with upper-body posture control during exercising. To validate the system an alternate weight-shift exercise was used; 3 participants with complete SCI exercised in the system for 1 hour twice-weekly for 6 months. We observed ground reaction forces over 70% of the full body-weight distributed to the supporting leg at each exercising cycle. Exercise performance improved for each participant by an increase of 13.88 percentage points of body-weight in the loading of the supporting leg during the six-month period. Importantly, the observed ground reaction forces are of higher magnitude than other studies which reported positive effects on BMD. This novel instrumentation aims to investigate weight bearing standing therapies aimed at determining the biomechanics of lower limb joint force actions and postural kinematics.