新型手动轮椅的实验研究

IF 0.7 Q4 REHABILITATION

Technology and Disability Pub Date : 2023-02-07 DOI:10.3233/tad-220395

Andrea Botta, Paride Cavallone, L. Tagliavini, G. Quaglia

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引用次数: 0

摘要

背景:传统的手动轮椅使用者由于推进姿势导致上肢损伤。目的:介绍了一种新型手动轮椅的动态特性的实验活动。该轮椅的设计与实现旨在减少传统轮椅对上肢的伤害。定义了一种新的指标，称为力峰值(POF)，并将其应用于不同的轮椅手动推进系统。方法:监测轮椅速度和使用者施加的左右力。通过改变轮椅的传动比和轮椅的速度进行了试验。结果:手轮轮椅和自行车受侧向力和径向力的影响，MEF和FEF指标均低于100%。Handwheelchair。这些指标等于100%。hand轮椅指标POF的平均值。Q值为51.75%，而轮辋轮椅的Q值约为42.5%，自行车的Q值为57.6%。结论:手扶轮椅的使用者力量。Q取决于轮椅速度和滑轮半径。较大的滑轮半径减小了平均力和最大力。可变传动比可以在所提出的轮椅上实现。

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Experimental study on a novel manual wheelchair

BACKGROUND: Traditional manual wheelchair users suffer from upper limbs injuries due to the propulsion gesture. OBJECTIVE: This paper presents the experimental activity addressed to define the dynamic characteristics of a novel manual wheelchair. The design and realization of the wheelchair aim to reduce injuries of the upper limbs related to conventional wheelchairs. A new index called Peak Of Force, POF, is defined and applied to the different wheelchair manual propulsion systems. METHODS: The wheelchair speed and the left and right-hand forces exerted by the user are monitored. The tests have been performed by changing the transmission ratio of the wheelchair and the wheelchair speed. RESULTS: The indices MEF and FEF are lower than 100% due to the lateral and radial forces for hand-rim wheelchairs and handbikes. For Handwheelchair.Q these indices are equal to 100%. The mean value of index POF for Handwheelchair.Q is 51.75%, while it is about 42.5% for the hand-rim wheelchair, and 57.6% for the handbike. CONCLUSIONS: The user forces for Handwheelchair.Q depend on the wheelchair speed and the pulley radius. The larger pulley radius reduces the average and the maximum force. A variable transmission ratio can be implemented on the proposed wheelchair.

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来源期刊

Technology and Disability Medicine-Rehabilitation

CiteScore

1.40

自引率

20.00%

发文量

期刊介绍： Technology and Disability communicates knowledge about the field of assistive technology devices and services, within the context of the lives of end users - persons with disabilities and their family members. While the topics are technical in nature, the articles are written for broad comprehension despite the reader"s education or training. Technology and Disability"s contents cover research and development efforts, education and training programs, service and policy activities and consumer experiences. - The term Technology refers to assistive devices and services. - The term Disability refers to both permanent and temporary functional limitations experienced by people of any age within any circumstance.