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Assistive Technology: the Official Journal of RESNA

Jestin Joy, Kannan Balakrishnan, Sreeraj Madhavankutty
Availability of a sign language dictionary is very important for the literacy of deaf people. But the intricacies involved in the representation of the sign language impede attempts at representing it in a printed format. A video based solution helps to solve this problem. This article discusses the development of a bilingual mobile sign language dictionary which has features for converting camera captured text into sign language and translating simple sentences from a spoken language into their corresponding signs...
September 7, 2018: Assistive Technology: the Official Journal of RESNA
Lina Becerra, Thaiany Pedrozo Campos Antunes, Heather M Capel, Sandra A Wiebe, Kim D Adams
INTRODUCTION: When children with physical impairments cannot perform hand movements for haptic exploration, they may miss opportunities to learn the properties of objects. Assistive robots may enable them to make manipulation actions. OBJECTIVE: To examine the differences between using a robotic teleoperation system with haptic feedback and manual exploration when making perceptual comparisons about object properties. Accuracy and exploratory procedures (EP) using the system were compared to those in manual exploration...
August 27, 2018: Assistive Technology: the Official Journal of RESNA
Yann Morère, Guy Bourhis, Kévin Cosnuau, Georges Guilmois, Emilie Rumilly, Emmanuelle Blangy
The powered wheelchair (PW) has become an essential mobility assistive technology for people with motor disabilities. A critical step involved in maximizing the end-user experience is evaluating individual functional abilities to identify driving difficulties PW users experience during their daily activities. There are certain limitations, however, associated with on-road driving assessments, such as the practical concern of safety. And while extracting quantitative parameters such as joystick control or trajectory tracking from real wheelchairs is feasible, it requires modifications to the PW hardware architecture and, in some cases, to the physical test environment...
August 7, 2018: Assistive Technology: the Official Journal of RESNA
Ian Rice, Chandra Jayaraman, Ryan T Pohlig
PURPOSE: To examine if wheelchair fit influenced the effectiveness of video based propulsion technique training in able bodied participants. METHOD: A cross sectional design was implemented to determine if a sample of able bodied participants (n = 21) randomized into a group receiving either an optimally configured wheelchair (OCW) (n = 11) or a non-optimally configured wheelchair (NOCW) (n = 10) showed differences in propulsion technique before and after training...
July 30, 2018: Assistive Technology: the Official Journal of RESNA
Lorraine H De Souza, Andrew O Frank
This article aims to describe the characteristics of those with a primary diagnosis of spinal cord injury (SCI) attending a specialist wheelchair service providing electric powered indoor/outdoor chairs (EPIOCs). This cross-sectional study, with retrospective review of electronic and case note records, explores the complexities of additional clinical features associated with SCI and disability influencing prescription. Data were extracted under three themes; demographics, diagnostic/clinical information and wheelchair factors...
July 23, 2018: Assistive Technology: the Official Journal of RESNA
Stephen Sprigle, Steven Pubillones
For wheelchair users who are at risk for developing pressure ulcers, cushion prescription seeks to address tissue integrity. Because many designs of wheelchair cushions exist, a need exists to estimate their performance in supporting the body. The objective of this research was to develop an approach to assess the equivalency of cushions with respect to their pressure redistribution performance. Two instrumented compliant buttock models, differing in form, were used in the evaluation. Stress and strain parameters were used to characterize load-bearing performance...
July 9, 2018: Assistive Technology: the Official Journal of RESNA
Carmen P DiGiovine, Meghan Donahue, Patricia Bahr, Mark Bresler, Joseph Klaesner, Raj Pagadala, Brian Burkhardt, Ray Grott
The purpose of this white paper is to describe the rehabilitation engineering professions, specifically rehabilitation engineers, rehabilitation technologists/assistive technologists, and rehabilitation technicians. An ad-hoc committee was convened by the Rehabilitation Engineering and Technologists (RE&T) Professional Standards Group (PSG) at the 2013 annual meeting, RESNA Conference in Seattle, Washington. The ad-hoc committee consists of rehabilitation engineering professionals who have experience working in a variety of environments, and with a multitude of professionals...
June 28, 2018: Assistive Technology: the Official Journal of RESNA
Tzafit Tirkel, Yael Edan, Natalia Khvorostianov, Simona Bar-Haim
This paper presents the overall design of a prototype home-based system aimed to reduce sedentary behavior of older adults. Quantitative performance indicators were developed to measure the sedentary behavior and daily activities of an older adult. The sedentary behavior is monitored by identifying individual positions (standing, sitting, and lying) within the field of view of a Microsoft Kinect sensor, using a custom designed algorithm. The physical activity of the older adult when outside the field of view of the Microsoft Kinect sensor is monitored by counting the number of steps using a Fitbit Charge HR watch, which the older adult is equipped with...
June 26, 2018: Assistive Technology: the Official Journal of RESNA
Anika Steinert, Cornelia Eicher, Marten Haesner, Elisabeth Steinhagen-Thiessen
The majority of lipid metabolism disorders can be managed well if patients adhere to their therapies. Self-monitoring can drive adherence with regards to medication intake, physical activities, and nutrition. Technical devices like smartphones can further support its users to achieve health-related goals. In a clinical trial, 100 patients with lipid metabolism disorders were asked to use a smartphone application over a duration of 12 months. Users of this app could set reminders to keep track of their medication and other disease-related variables, such as weight and cholesterol...
June 26, 2018: Assistive Technology: the Official Journal of RESNA
Mohammad Gharini, Majid Mohammadi Moghaddam, Farzam Farahmand
This study proposes a computer modeling approach to find the optimal damping coefficients of the viscoelastic ankle-foot prostheses for each specific amputee. A two-dimensional locomotion model was developed for a transtibial amputee and personalized using his body measures and the reference gait pattern of an equivalent able-bodied subject. By employing the forward dynamic simulation, the amputee's locomotion was synthesized for different prosthetic settings to find the optimal damping coefficients, based on a kinematics and a total work cost function...
June 26, 2018: Assistive Technology: the Official Journal of RESNA
Emily J Steel
INTRODUCTION: Reforms to Australia's disability and rehabilitation sectors have espoused the potential of assistive technology as an enabler. As new insurance systems are being developed it is timely to examine the structure of existing systems. This exploratory study examined the policies guiding assistive technology provision in the motor accident insurance sector of one Australian state. METHODS: Policy documents were analyzed iteratively with a set of qualitative questions to understand the intent and interpretation of policies guiding assistive technology provision...
June 8, 2018: Assistive Technology: the Official Journal of RESNA
Laura Sanches Rocha, Bonita Sawatzky, W Ben Mortenson
New geared wheelchair wheels have been developed allowing the user to pull backwards on the rims to move forward. Theoretically, this utilizes larger muscle groups compared to conventional propulsion preventing repetitive stress injuries. This study compared the gross mechanical efficiency (GME), perceived effort and energy expenditure of propelling the wheelchair using two types of these geared wheels and standard forward propulsion wheels. A within participants repeated measures design was used. Participants' energy expenditure and perceived exertion were measured...
May 17, 2018: Assistive Technology: the Official Journal of RESNA
Kuang-Chin Tai
Blind people adopt their remaining intact senses to perceive the world for tasks such as determining the water level in a bowl. Pouring water into a bowl generates water sounds and echoes reflected in the bowl. This research develops a bowl with increased echo (called an echo bowl), and analyzes the accuracy of water levels perceived by visually impaired people using a container or a kettle to pour water into a common bowl or an echo bowl. The analysis of factors of pouring and filled equipment indicates that the container has a significantly lower water level error than the kettle when pouring water...
May 9, 2018: Assistive Technology: the Official Journal of RESNA
Ikram Asghar, Shuang Cang, Hongnian Yu
This study explores important factors of assistive technology (AT) and evaluates their relative impact on AT effectiveness and retention. Questionnaire based survey is used for data collection from 327 people with dementia (PWD). This empirical study uses statistical techniques including exploratory factor analysis for factor identification, linear regression for impact study, Kruskal Wallis H and Mann Whitney U tests for the statistical significant study in terms of demographic and characteristics. The exploratory factor analysis results into 11 factors: operational support, physical support, psychological support, social support, cultural match, reduced external help, affordability, travel help, compatibility, effectiveness and retention...
April 27, 2018: Assistive Technology: the Official Journal of RESNA
Marco Tofani, C Candeloro, M Sabbadini, L Lucibello, M Figura, G Fabbrini, G Galeoto, E Castelli
The importance of adaptive seating system on body structure and function is widely accepted, but its impact on psychosocial aspects needs more consideration by health professionals. This article describes the Italian validation of the Psychosocial Impact of Assistive Device Scale (IT-PIADS) for non-ambulant people with neuromotor disorders. Once agreement has been given by the original authors, the scale was translated and adapted to the Italian culture. The IT-PIADS was administered to different wheelchairs users with heterogeneous diagnosis...
April 25, 2018: Assistive Technology: the Official Journal of RESNA
Gustav Jarl, Lars-Olov Lundqvist
The medical and social models of disability categorize people as ablebodied or disabled. In contrast, the biopsychosocial model, which forms the basis for the International Classification of Functioning, Disability and Health (ICF), suggests a universalistic perspective on human functioning, encompassing all human beings. In this article, we argue that the artificial separation of function-enhancing technology into assistive technology (AT) and mainstream technology (MST) might be one of the barriers to a universalistic view of human functioning...
April 20, 2018: Assistive Technology: the Official Journal of RESNA
Nahid Tafti, Masoud Karimlou, Mohammad Ali Mardani, Amir Salar Jafarpisheh, Gholam Reza Aminian, Reza Safari
The objectives of current study were to a) assess similarities and relationships between anatomical landmark-based angles and distances of lower limbs in unilateral transtibial amputees and b) develop and evaluate a new anatomically based static prosthetic alignment method. First substudy assessed the anthropometrical differences and relationships between the lower limbs in the photographs taken from amputees. Data were analyzed via paired t-test and regression analysis. Results show no significant differences in frontal and transverse planes...
April 20, 2018: Assistive Technology: the Official Journal of RESNA
M Berthelette, D D Mann, J Ripat, C M Glazebrook
Wheelchair users who live in cold climates are faced with daily difficulties related to personal independence and societal inclusion as their assistive devices are unable to overcome the physical barriers created by snow and ice. The purpose of the research was to evaluate four commercially available casters to determine which caster performed best on snow-covered surfaces. Performance measures included: travel time, force transfer through the palms of the hands, number of propulsive movements, static resistance to movement, kinetic resistance to movement, and caster penetration into the packed snow...
April 18, 2018: Assistive Technology: the Official Journal of RESNA
Kathleen B Aspiranti, Karen H Larwin, Benjamin P Schade
Since the introduction of iPads in 2010, educators have been working to effectively incorporate this technology as a supplement to curriculum and a tool to increase student engagement and student achievement. The current investigation examines the effectiveness of iPad applications in supporting the instruction of students identified on the autism spectrum. Specifically, this investigation provides a meta-analysis of available research that examines the use of iPad technology and its impact on learning outcomes for students with autism...
April 10, 2018: Assistive Technology: the Official Journal of RESNA
Bob Radder, Gerdienke B Prange-Lasonder, Anke I R Kottink, Johnny Holmberg, Kristin Sletta, Manon Van Dijk, Thomas Meyer, Jaap H Buurke, Johan S Rietman
Reduced grip strength, resulting in difficulties in performing daily activities, is a common problem in the population of older adults. Newly developed soft-robotic devices have the potential to support older adults with reduced grip in daily activities. The objective of this study was to evaluate the direct, assistive effect of grip support from the wearable, soft-robotic ironHand glove. In total, 65 older adults with self-reported decline of hand function resulting from various disorders participated in this cross-sectional study...
March 30, 2018: Assistive Technology: the Official Journal of RESNA
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