Organizational Unit:

Center for Inclusive Design and Innovation

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https://hdl.handle.net/1853/70766

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Organizational Unit

College of Design

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https://finding-aids.library.gatech.edu/agents/corporate_entities/1116

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Publication Search Results

Now showing 1 - 10 of 114

The Development of a Measurement Tool for Mastery of Assistive Technology

(Georgia Institute of Technology, 2021-06-30) Satterfield, Richard (Ben) ; Walker, Bruce N. ; Milchus, Karen

This report describes the development of a survey tool used to measure and assess “mastery of assistive technology”. A Delphi Panel comprised of experts in the area of Assistive Technology (AT) was gathered to explore the question of “What is mastery of AT?” For the purposes of this study, mastery was defined as becoming a “power user” of AT. Panelists were asked to identify what characteristics are associated with being a power user of AT. The panel gave these characteristics Likert Scale rankings as to their applicability as a predictor of becoming a power user and as an indicator of having become a power user. The rankings were compared, and the panel was asked to revisit the rankings in order to identify the most important factors. The panel identified 12 predictors and 14 indicators that they felt were highly predictive of becoming a power user or indicative of being one. These factors were analyzed and found to coalesce around four constructs or areas of mastery: (1) Experience (Usage) with AT; (2) Proficiency with AT; (3) Knowledge of AT; and (4) Personal Connection with AT. An online survey-based tool for measuring AT mastery was developed based on these constructs and presented to the panel for feedback and critique.
The Accuracy of New Wheelchair Users’ Predictions about their Future Wheelchair Use

(Georgia Institute of Technology, 2012-06) Hoenig, Helen ; Griffiths, Patricia ; Ganesh, Shanti ; Caves, Kevin ; Harris, Frances

Objective—This study examined the accuracy of new wheelchair user predictions about their future wheelchair use. Design—Prospective cohort study of 84 community dwelling veterans provided a new manual wheelchair. Results—The association between predicted and actual wheelchair use was strong at 3-months (phi coefficient = .56), with 90% of those who anticipated using the wheelchair at 3-months still using it (i.e., positive predictive value 0.96) and 60% of those who anticipated not using it indeed no longer using the wheelchair (i.e., negative predictive value 0.60, overall accuracy 0.92). Predictive Accuracy diminished over time, with overall accuracy declining from 0.92 at 3-months to 0.66 at 6-months. At all time points, and for all types of use, patients better predicted use as opposed to disuse, with correspondingly higher positive than negative predictive values. Accuracy of prediction of usage in specific indoor and outdoor locations varied according to location. Conclusions—This study demonstrates the importance of better understanding the potential mismatch between the anticipated and actual patterns of wheelchair use. The findings suggest that users can be relied upon to accurately predict their basic wheelchair-related needs in the short term. Further exploration is needed to identify characteristics that will aid users and their providers in more accurately predicting mobility needs for the long-term.
Assessment of the ISO Impact Damping Test

(Georgia Institute of Technology, 2012) Sprigle, Stephen ; Chung, Bummo ; Meyer, Tobias

The ISO impact damping test characterizes wheelchair cushion abilities to reduce impact loading on issues and to help maintain postural stability, reporting the number of rebounds greater than 10% of the peak impact acceleration and the ratio of the 2nd to 1st rebound. Based upon our analysis, 3 critical issues have been identified. 1) Impact magnitude should be part of the analysis. 2) Impact should be used instead rebound accelerations. 3) Oscillation from impact is not a simple 2nd order damped harmonic, instead several natural frequencies are embedded in the damped oscillation. In conclusion, ISO should utilize impact accelerations and more complex analysis to characterize the damping properties of wheelchair cushions.
Instructions for Making a Four Bar Linkage Attachment for Center Mounted Footrest

(Georgia Institute of Technology, 2011) Holland, Kimberly
Ball Targeting System with Positive Feedback

(Georgia Institute of Technology, 2010-09-09)

Instructions for making a portable variable impact ball targeting system with light and audio feedback.
Wiimote Modification for Persons with Disabilities

(Georgia Institute of Technology, 2010-09-09)

This instructable will show you how to rewire the button of the Wiimote to bigger buttons so that persons with disabilities will be able to efficiently use the Wiimote by not having to press the small buttons on the Wiimote. The buttons that will be rewired will be the A button, B button, the directional pad (up, down, left, right), and the Home button.
Bottle Feeding of Low Facial Muscle Tone Infants

(Georgia Institute of Technology, 2010-09-09)

Instructions for making a device to hold bottle to feeding hand.
The Accuracy Of New Wheelchair User Predictions About Their Future Wheelchair Use

(Georgia Institute of Technology, 2010-06) Hoenig, Helen ; Griffiths, Patricia ; Harris, Frances ; Caves, Kevin ; Sprigle, Stephen

This study examined the accuracy of new wheelchair user predictions about their future wheelchair use. We used an existing database of 71 new manual wheelchair users with data obtained at baseline, 3-‐ and 6-‐months to examine the specificity, sensitivity, positive and negative predictive value of user predictions about anticipated amount and locations of wheelchair use. At 3-‐months, the correlation between predicted and actual use was strong, with 90% of those who thought they would still be using the wheelchair still using it, and 60% of those who said they would not be using it indeed were not using the wheelchair. By 6-‐months the predictive utility diminished substantially. Only 70% of subjects accurately predicted their continued use, while only 50% correctly predicted they would not be using their wheelchairs. This study demonstrates the importance of better understanding the potential mismatch between the anticipated and actual patterns of wheelchairs use.
Mobility Metrics for Manual Wheelchair Use in Everyday Life

(Georgia Institute of Technology, 2010-06) Lopez, Ricardo A. ; Sonenblum, Sharon Eve ; Sprigle, Stephen

In this study, a method for the robust detection of manual wheelchair movement with accelerometer-based data logging is used to obtain metrics of wheelchair mobility that complement mean- and total-distance-only based measurements. It is found that these metrics, that include distance, time and number of activity bouts, provide better understanding of everyday use of manual wheelchairs by shedding more light into how users operate their wheelchairs in their daily lives.
Study on Alleviation Pressure Cushion

(Georgia Institute of Technology, 2010-06) Kong, Linghua ; Sprigle, Stephen ; Davis, Kim ; Wang, Chao

The alleviation pressure (AP) cushion is a dynamic cushion system with three bladders at the pelvic region. The bladders can be deflated and inflated in a certain sequence to relieve the pressure on the ischial tuberosiites (IT) and coccyx/sacrum. The design of the foam base, bladder and pneumatic and electronic system of the AP cushion is discussed in this paper. And testing is conducted to verify the effectiveness of the AP cushion.