Usability and Vibration Analysis of a Low-Profile Automatic Powered Wheelchair to Motor Vehicle Docking System.

Usability and Vibration Analysis of a Low-Profile Automatic Powered Wheelchair to Motor Vehicle Docking System.
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低调自动驱动轮椅到机动车辆对接系统的可用性和振动分析。

DOI:
10.3390/vibration6010016
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发表时间:
2023-02-24
期刊:
影响因子:
2
通讯作者:
Cooper RA
Cooper RA
中科院分区:
其他
文献类型:
--
作者:
Lee CD;Daveler BJ;Candiotti JL;Cooper R;Sivakanthan S;Deepak N;Grindle GG;Cooper RA

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QLX是一种低姿态的自动电动轮椅对接系统(WDS)原型,旨在改善轮椅使用者乘坐车辆时的安全性和不适感。本研究根据ISO 2631-1标准和系统可用性评价,评价了申报QLX与另一个WDS(4点系留系统)之间的全身振动效应。全身振动分析进行了评估,在轮椅上使用两个WDS停靠在车辆,而骑在现实世界的表面。此外,参与者在驾驶轮椅和驾驶车辆时对每个白龙会的可用性进行了评价。两种WDS在振动健康风险范围内显示出相似的振动结果,但冲击值低于健康风险范围。15名电动轮椅使用者报告了操作两个WDS的低任务负荷需求;但使用QLX停靠车辆的性能更好(p = 0.03)。此外,QLX显示出更好的可用性(p < 0.01),更少的不适(p < 0.05),更大的安全性相比,4点绑在车上(p < 0.05)。研究结果表明,这两个白龙会保持低冲击暴露的轮椅使用者,而乘坐车辆,但更好的整体性能相比,操作QLX的4点系留系统,从而提高用户的自主性,独立停靠在车辆。
The QLX is a low-profile automatic powered wheelchair docking system (WDS) prototype developed to improve the securement and discomfort of wheelchair users when riding in vehicles. The study evaluates the whole-body vibration effects between the proposed QLX and another WDS (4-point tiedown system) following ISO 2631-1 standards and a systematic usability evaluation. Whole-body vibration analysis was evaluated in wheelchairs using both WDS to dock in a vehicle while riding on real-world surfaces. Also, participants rated the usability of each WDS while driving a wheelchair and while riding in a vehicle in driving tasks. Both WDSs showed similar vibration results within the vibration health-risk margins; but shock values below health-risk margins. Fifteen powered wheelchair users reported low task load demand to operate both WDS; but better performance to dock in vehicles with the QLX (p = 0.03). Also, the QLX showed better usability (p < 0.01), less discomfort (p’s < 0.05), and greater security compared to the 4-point tiedown while riding in a vehicle (p’s < 0.05). Study findings indicate that both WDS maintain low shock exposure for wheelchair users while riding vehicles, but a better performance overall to operate the QLX compared to the 4-point tiedown system; hence enhancing user’s autonomy to dock in vehicles independently.
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