The Adaptation and Calibration of the SMARTHUB for Measuring Ground Reaction Forces on Manual WheelchairsBy Donahue, Meghan; Wolf, Erik PhD; Cooper, Rory, PhD; Rehabilitation Engineering & Assistive Technology Society of North America (RESNA) 2007 Conference,
Publication Date: 2007
Paper focuses on improvements made to manual wheelchairs to enhance comfort for the user, particularly by helping to decrease whole-body vibration caused by the use of wheelchairs. Three common effects of the stresses that vibrations can cause are discomfort, interference with activities, and health impairments. Challenges in design improvement are a result of lack of quantitative data on the dynamic loading experienced on the wheelchair. The SMARTHUB has been designed to measure the forces that are transmitted to the wheelchair from surfaces and obstacles that the wheelchair encounters throughout daily use. These forces can be used to calculate the whole body vibrations experienced by the user leading to further improvements in wheelchair designs. Measurement of acceleration in the vertical and horizontal planes can be correlated with the forces and moments experienced at the same time measured on the SMARTHUB. A SMART ACCELEROMETER can be used in the seat of the wheelchair to measure the vibrations that are transmitted through the seat of the chair to the trunk of the occupant. A technology evaluation of these systems is presented. This paper was presented at the 2007 Annual Conference of the Rehabilitation Engineering & Assistive Technology Society of North America in Phoenix, Arizona.
Published by: Rehabilitation Engineering & Assistive Technology Society of North America (RESNA) (Website:http://www.resna.org)