Dynamic Stiffness Measurement of Wheelchair Cushions Under Various Preload Forces

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This study investigates the dynamic stiffness and transmissibility characteristics of seven different commercially available wheelchair cushions under varying preload forces. Utilizing a systematic material testing approach, the research presents measured values aimed at improving wheelchair cushion design and performance. The findings provide critical insights for rehabilitation professionals to assist in selecting appropriate solutions for individuals with mobility impairments. The results are documented in the Journal of Rehabilitation Research and Development and may influence future developments in seating systems.

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May 17, 2026

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Dynamic Stiffness Measurement of Wheelchair Cushions Under Various Preload Forces

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Figure 9. Material testing system-measured modulus of dynamic stiffness for all preload forces of seven seating systems. Garcia-Mendez Y, Pearlman JL, Cooper RA, Boninger ML. Dynamic stiffness and transmissibility of commercially available wheelchair cushions using a laboratory test method. J Rehabil Res Dev. 2012;49(1):7–22.http://dx.doi.org/10.1682/JRRD.2011.02.0023

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