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Assistive Technology: the Official Journal of RESNA

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https://www.readbyqxmd.com/read/28708963/a-qualitative-study-adopting-a-user-centered-approach-to-design-and-validate-a-brain-computer-interface-for-cognitive-rehabilitation-for-people-with-brain-injury
#1
Suzanne Martin, Elaine Armstrong, Eileen Thomson, Eloisa Vargiu, Marc Solà, Stefan Dauwalder, Felip Miralles, Jean Daly Lynn
Cognitive rehabilitation is established as a core intervention within rehabilitation programs following a traumatic brain injury (TBI). Digitally enabled assistive technologies offer opportunities for clinicians to increase remote access to rehabilitation supporting transition into home. Brain Computer Interface (BCI) systems can harness the residual abilities of individuals with limited function to gain control over computers through their brain waves. This paper presents an online cognitive rehabilitation application developed with therapists, to work remotely with people who have TBI, who will use BCI at home to engage in the therapy...
July 14, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28700324/usability-and-acceptability-by-a-younger-and-older-user-group-regarding-a-mobile-robot-supported-gait-rehabilitation-system
#2
Cornelia Eicher, Marten Haesner, Matthias Spranger, Olena Kuzmicheva, Axel Gräser, Elisabeth Steinhagen-Thiessen
PURPOSE: The aim of the study was to identify differences regarding usability, acceptability and barriers of usage of a robot-supported gait rehabilitation system between a younger and older group of patients with gait impairments. METHOD: A mobile robot-supported gait rehabilitation prototype was tested on a group of geriatric patients aged 60 and above, and on a group of young patients aged 59 and below in a clinical setting during five therapy sessions. The involved therapists received 2 days training with the system and could test it profoundly...
July 12, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28696831/preliminary-testing-by-adults-of-a-haptics-assisted-robot-platform-designed-for-children-with-physical-impairments-to-access-play
#3
Isao Sakamaki, Kim Adams, Maria Fernanda Gomez Medina, Javier Leonardo Castellanos Cruz, Nooshin Jafari, Mahdi Tavakoli, Heidi Janz
Development of children's cognitive and perceptual skills depends heavily on object exploration and experience in their physical world. For children who have severe physical impairments, one of the biggest concerns is the loss of opportunities for meaningful play with objects, including physical contact and manipulation. Assistive robots can enable children to perform object manipulation through the control of simple interfaces. Touch sensations conveyed through haptic interfaces in the form of force reflection or force assistance can help a child to sense the environment and to control a robot...
July 11, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28662364/data-logger-technologies-for-powered-wheelchairs-a-scoping-review
#4
François Routhier, Josiane Lettre, William C Miller, Jaimie F Borisoff, Kate Keetch, Ian M Mitchell, The CanWheel Research Team
In recent years, studies have increasingly employed data loggers to record the objective behaviours of powered wheelchair users. Of the data logging work reported in the literature, the technologies used offer marked differences in characteristics. In order to identify and describe the extent of published research activity that relies on data logger technologies for powered wheelchairs, we performed a scoping review of the scientific and grey literature. This scoping review, complementary to a previous one related to manual wheelchairs, is part of a process aiming to help further the development and increase the functionality of data loggers with wheelchairs...
June 29, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28644758/an-independent-shopping-experience-for-wheelchair-users-through-augmented-reality-and-rfid
#5
Zulqarnain Rashid, Rafael Pous, Christopher S Norrie
People with physical and mobility impairments continue to struggle to attain independence in the performance of routine activities and tasks. For example, browsing in a store and interacting with products located beyond an arm's length may be impossible without the enabling intervention of a human assistant. This research article describes a study undertaken to design, develop, and evaluate potential interaction methods for motor-impaired individuals, specifically those who use wheelchairs. Our study includes a user-centered approach, and a categorization of wheelchair users based upon the severity of their disability and their individual needs...
June 23, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28628395/evaluation-of-a-companion-robot-based-on-field-tests-with-single-older-adults-in-their-homes
#6
Katalin Zsiga, András Tóth, Tamás Pilissy, Orsolya Péter, Zoltán Dénes, Gábor Fazekas
The growing number of older adults places insurmountable load on family members and professional caregivers. Assistive technology with the aid of robots can present a possible solution. The goal of this article was to test a companion robot supporting older adults in their home environments. Eight senior volunteers were involved in the field test. They all lived alone and were self-supporting. The robot was capable of providing cognitive assistance to manage the user's daily routine. Each participant used the robot for 94...
June 19, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28628379/visuomotor-behaviors-and-performance-in-a-dual-task-paradigm-with-and-without-vibrotactile-feedback-when-using-a-myoelectric-controlled-hand
#7
Eitan Raveh, Jason Friedman, Sigal Portnoy
Prosthesis users allocate visual attention to their prosthetic hand while performing activities of daily living (ADLs), due to absence of sensory feedback. Dual-task assignments present competition for visual attention and may affect the performance of ADLs. Vibrotactile feedback (VTF) is a frequently-used method to provide prosthesis users with tactile feedback. However, the effect of adding VTF on visual attention and performance in a motor dual-task paradigm has not been investigated. Our aim was to compare visual attention and performance during ADLs in a motor dual-task paradigm when using binary VTF and without using VTF...
June 19, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28598300/user-experience-of-lower-limb-orthosis
#8
Bing-Shiang Yang, Yen-Wan Chen, Ji-Rou Tong
If an assistive device is not acceptable to the user, it will not achieve efficacy and would be resource-wasting. This study employed in-depth interviews to understand what users' individual activities of daily living, problems of using orthoses, and considerations for selecting orthoses are. We conducted qualitative interviews with 35 lower-limb orthosis users, and semi-structured interviews were applied in this study. We analyzed the interview data from transcripts, through coding and concepts, to theories based on grounded theory...
June 9, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28590160/the-effect-of-caster-types-on-global-rolling-resistance-in-manual-wheelchairs-on-indoor-and-outdoor-surfaces
#9
Franco H N Chan, Mehdi Eshraghi, Mohammad A Alhazmi, Bonita J Sawatzky
An important aspect of reducing the strain of wheeling is to decrease rolling resistance. Previous laboratory research, using a treadmill, determined that smaller casters significantly increased rolling resistance. The purpose of this study was to determine the effect of caster size on various indoor and outdoor surfaces on global wheelchair rolling resistance. Three caster types with sizes 4 in, 5 in, and 6 in, three indoor surfaces, and three outdoor surfaces were studied. A manual wheelchair was passively pulled along each surface at 1...
June 7, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28581898/assistive-technology-reasoning-in-rural-school-based-occupational-therapy
#10
Anne F Cronin
This study explores broad issues associated with assistive technology (AT) service provision in rural school settings. The study was designed to explore the beliefs of practitioners working in rural schools about their role in AT service provision. This article includes an extensive review of the literature and findings from a naturalistic study of AT service provision experience in rural school settings. The study portion of this article involved completion of an open-ended questionnaire followed by semi-structured ethnographic interviews...
June 5, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28541832/design-and-development-of-the-first-exoskeletal-garment-to-enhance-arm-mobility-for-children-with-movement-impairments
#11
Martha L Hall, Michele A Lobo
Children with a variety of diagnoses have impairments that limit their arm function. Despite the fact that arm function is important for early learning and activities of daily living, there are few tools to assist movement for these children, and existing devices have challenges related to cost, accessibility, comfort, and aesthetics. In this article, we describe the design process and development of the first garment-based exoskeleton to assist arm movement in young children with movement impairments: the Playskin Lift(TM)...
May 25, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28506153/design-and-experimental-evaluation-of-yoked-hand-clutching-for-a-lever-drive-chair
#12
Yasemin Sarigul-Klijn, Brendan W Smith, David J Reinkensmeyer
Lever-drive wheelchairs lower physical strain but are less maneuverable than push-rim wheelchairs. Here, we study a possible solution in which the user simultaneously actuates clutches mounted between the levers and wheels each stroke via a clutch handle attached to one lever; this solution is of particular interest for user groups with only one functional hand. First, to demonstrate maneuverability, we show how this "yoked clutch" allows an experienced user to maneuver a constrained space. Then, we compared the difficulty of learning a yoked clutch chair to a conventional lever-drive transmission (i...
May 16, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28506151/a-new-primary-mobility-tool-for-the-visually-impaired-a-white-cane-adaptive-mobility-device-hybrid
#13
John-Ross Rizzo, Kyle Conti, Teena Thomas, Todd E Hudson, Robert Wall Emerson, Dae Shik Kim
This article describes pilot testing of an adaptive mobility device-hybrid (AMD-H) combining properties of two primary mobility tools for people who are blind: the long cane and adaptive mobility devices (AMDs). The long cane is the primary mobility tool used by people who are blind and visually impaired for independent and safe mobility and AMDs are adaptive devices that are often lightweight frames approximately body width in lateral dimension that are simply pushed forward to clear the space in front of a person...
May 16, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28471302/orientation-and-mobility-aids-for-individuals-with-blindness-verbal-description-vs-audio-tactile-map
#14
Konstantinos Papadopoulos, Eleni Koustriava, Panagiotis Koukourikos
Individuals with visual impairment face significant challenges traveling in the physical environment. Independent movement is directly connected to the quality of someone's life, and thus, orientation and mobility issues are always listed among the top priorities of research in the field. The aim of the present research was to examine the level of accuracy of the cognitive map developed through the use of a verbal description versus the cognitive map developed using an audio-tactile map. A comparison of the effectiveness of the two mobility aids in detecting specific points of interest in the physical environment was an objective of the research...
May 4, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28471273/gaze-controlled-communication-technology-for-children-with-severe-multiple-disabilities-parents-and-professionals-perception-of-gains-obstacles-and-prerequisites
#15
Eva Holmqvist, Gunilla Thunberg, Marie Peny Dahlstrand
The aim of this study was to explore parents' and professionals' thoughts of how a gaze-controlled computer can be beneficial to children with severe multiple disabilities. All systems were provided primarily for symbol-based communication, but were also used for other purposes such as play, leisure and school activities. A further aim was to investigate factors affecting usability, specifically for communication. The study used a qualitative approach, involving content analysis of semistructured interviews with the children's key persons (N = 11)...
May 4, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28430027/a-comparison-of-the-performance-of-2-5-to-3-5-year-old-children-without-disabilities-using-animated-and-cursor-based-scanning-in-a-contextual-scene
#16
John W McCarthy, Jamie B Boster
Although recent evidence suggests learning demands for children can be reduced by organizing augmentative and alternative communication (AAC) displays in contextual scenes, there is little evidence on how such scenes could be made accessible for children who cannot use direct selection. Using a line drawn scene of a living room, a traditional traveling cursor (a green outline of objects within the scene) was compared with sequential animation-logically matching the function of items in the scene (e.g., hands of a clock moving, a lamp turning on and off, etc...
April 21, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28368689/text-entry-rate-of-access-interfaces-used-by-people-with-physical-disabilities-a-systematic-review
#17
Heidi Horstmann Koester, Sajay Arthanat
This study systematically reviewed the research on assistive technology (AT) access interfaces used for text entry, and conducted a quantitative synthesis of text entry rates (TER) associated with common interfaces. We searched 10 databases and included studies in which: typing speed was reported in words per minute (WPM) or equivalent; the access interface was available for public use; and individuals with physical impairments were in the study population. For quantitative synthesis, we used only the TER reported for individuals with physical impairments...
April 3, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28346067/horseback-riding-therapy-for-a-deafblind-individual-enabled-by-a-haptic-interface
#18
Matjaž Ogrinc Ms, Ildar Farkhatdinov PhD, Rich Walker Ms, Etienne Burdet
We present a haptic interface to help deafblind people to practice horseback riding as a recreational and therapeutic activity. Horseback riding is a form of therapy which can improve self-esteem and sensation of independence. It has been shown to benefit people with various medical conditions-including autism. However, in the case of deafblind riders, an interpreter must stand by at all times to communicate with the rider by touch. We developed a simple interface that enables deafblind people to enjoy horseback riding while the instructor is remotely providing cues, which improves their independence...
March 27, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28346064/modeling-and-simulation-of-two-wheelchair-accessories-for-pushing-doors
#19
Soran Jalal Abdullah, Javeed Shaikh Mohammed
Independent mobility is vital to individuals of all ages, and wheelchairs have proven to be great personal mobility devices. The tasks of opening and navigating through a door are trivial for healthy people, while the same tasks could be difficult for some wheelchair users. A wide range of intelligent wheelchair controllers and systems, robotic arms, or manipulator attachments integrated with wheelchairs have been developed for various applications, including manipulating door knobs. Unfortunately, the intelligent wheelchairs and robotic attachments are not widely available as commercial products...
March 27, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28632020/are-patients-with-hemiplegic-stroke-really-walking-with-a-cane-fitted-at-the-greater-trochanter
#20
Yong-Jun Cha
The purpose of this study was to determine the cane lengths currently used by patients with hemiplegic stroke for ambulatory assistance. The sample consisted of 116 adults with hemiplegic stroke. Descriptive statistics and Chi-square test for trend were conducted to examine the distributions of cane lengths, which were classified as follows: reaching >2 cm below the greater trochanter (GT), reaching from <2 cm below to <2 cm above the GT, or reaching >2 cm above the GT. Cane lengths reaching >2 cm above the GT were most common (range 62%-88%)...
February 26, 2017: Assistive Technology: the Official Journal of RESNA
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