Designing electronic graphic symbol-based AAC systems: a scoping review. Part 2: application of human-centred design

PURPOSE

This is the second of two papers summarizing studies reporting on the design of electronic graphic symbol-based augmentative and alternative communication (AAC) systems. The aim of this paper was to describe the design approaches used and to determine to what extent the principles of human-centred design (HCD) were reflected in the design approaches and processes used.

METHODS

A scoping review was conducted. A multifaceted search resulted in the identification of 28 studies meeting the selection criteria. Data were extracted relating to four areas of interest, namely, (1) the general characteristics of the studies, (2) features of the systems designed, (3) availability of the systems to the public and (4) the design processes followed. In this paper, findings related to the last area are presented.

RESULTS

Design approaches were often inconsistently described. User-centred design was mentioned more often than HCD. Even so, various HCD principles were considered in most studies. Notably, stakeholders were involved in the design process in all studies. However, users were not involved in all studies and stakeholder roles were predominantly informative rather than collaborative. Prototype and product evaluations focussed mostly on usability rather than user experience. Although many design teams were multidisciplinary, engineers and computer scientists predominated.

CONCLUSIONS

There is a need for designers to be more transparent about the type of design approach used to guide the system design and also to clearly report on design approaches and processes used. The application of HCD to the design of graphic symbol-based AAC systems is still limited.Implications for rehabilitationHuman-centred design approaches can productively guide the design of electronic graphic symbol-based augmentative and alternative communication (AAC) systems.Creative methods are needed to involve stakeholders with complex communication needs in all phases of the design process.Evaluation of electronic graphic symbol-based AAC systems should consider both usability and user experience.

Guidelines for assistive technology service provision - A scoping review

PURPOSE

Despite the high unmet need for effective AT provision, multiple service delivery models across different countries, and a shortage of personnel trained in this field, no widely useable and accepted Assistive Technology (AT) service provision guidelines currently exist. This review aims to provide an overview of the literature regarding AT service provision guidelines to inform the development of globally useable AT provision guidance, aligned with contemporary global initiatives to improve access to AT.

MATERIALS AND METHODS

The rapid scoping review method used a two-tiered approach to identifying relevant publications: (1) systematic search of academic databases (Medline, CINAHL, SCOPUS, and Google Scholar); (2) consultation with international AT organisations and experts. The search was conducted in March 2023 with no date limitations. Analysis was guided by the TIDE-funded HEART research on quality AT provision and service delivery processes in Europe, as well as the WHO-GATE 5 P framework for strengthening access to AT.

RESULTS

35 publications were identified from various countries, and directed at differing assistive products, personnel, and provision contexts. No established guidelines for AT service provision currently exist. However, despite the variety in contexts, the range of assistive products and the range of stakeholders to whom guidelines are directed, several key service delivery steps were identified that may form part of such guidelines.

CONCLUSIONS

This review offers a strong starting point for developing guidance for AT provision to meet global needs. Careful consideration of vocabulary, process, and application to the diversity of assistive products is recommended in systematizing globally applicable guidance.

Obstacles for using assistive technology in centres of special needs in the UAE

Assistive technology (AT) represents one way to improve access and participation in the school and home environments of people with disabilities (PWDs). This study analyzed the obstacles to AT acquisition, knowledge, use, recommendation, and training in special needs centers in the United Arab Emirates (UAE) from the perspective of professionals (teachers and therapists). A questionnaire was developed and its validity and reliability were confirmed. The questionnaire was distributed to all special-needs centers in the UAE via Survey Monkey, and 78 responses were received. The results indicate the nature of obstacles to AT use in special education centers in the UAE, with obstacles related to parents having the highest mean. The results also indicated a statistically significant difference in professionals' perception of obstacles to using AT based on experience level, center location, and level of education. Implications for further research and recommendations for policy and practice are provided.

Outcomes in occupational therapy students' preparation for wheelchair skills training provision

While wheelchair skills training has demonstrated highly effective outcomes for wheelchair users, prevalence of receiving comprehensive skills training is low. Studies demonstrate a wheelchair skills "bootcamp" significantly improves occupational therapy students' capacity to demonstrate wheelchair skill performance; however, how bootcamps impact students' self-efficacy to deliver skills training in future clinical practice is unclear. This study explored a large dataset collected from nine successive student cohorts attending a structured wheelchair skills bootcamp at a single site. Bootcamps were 4-4.5 hours in duration and content was based on the Wheelchair Skills Program. Mean improvement in skill capacity was 34.8% (95% CI 33.5; 36.1) and wheelchair self-efficacy improved by 28.7% (95% CI 27.3; 30.1). Post-bootcamp self-efficacy scores for Assessment (80.9%), Training (78.5%), Spotting (87.4%), and Documentation (70.4%) all improved by 30-40%. Mandatory bootcamps had lower baseline scores but similar post-bootcamp and change scores as voluntary ones. Cohorts during the COVID-19 pandemic had significantly lower baseline scores for wheelchair skill capacity and confidence as well as self-efficacy with assessment, but significantly larger improvements post-bootcamp. An experiential bootcamp is effective across a wide range of occupational therapy student cohorts in preparing them to deliver wheelchair skills training in future clinical practice.

Enabling local provision of assistive products in rural South India: an organisational survey of needs, barriers, and facilitators

Objective: Access to assistive products (APs) is essential to maximising function, participation, and inclusion of persons with disabilities. Challenges to AP access in low- and middle-income countries include stigma, costs, supply, and rehabilitation capacity gaps. This study aimed to examine AT access in the context of a low-resource setting in rural South India. Objectives were to examine rehabilitation professionals' perceptions of AP needs, barriers and facilitators of AP provision, and AT knowledge.Methods: A descriptive study design with a 2-part online survey methodology was utilized. This study was conducted in April-September 2020 at a non-governmental organization (NGO) serving children and adults with disabilities in 3 districts of rural South India. Purposive sampling of NGO's multidisciplinary rehabilitation professionals (N=62) was used. The survey was developed based on WHO's Assistive Products List (APL). Barriers and facilitators were classified according to the principles of AT access. Analyses revealed acceptability, affordability, and availability as the top three barrier themes across disciplines, including poor acceptance by clients/families due to stigma, high AP costs, and a long waitlist for government-provided devices. Acceptability, affordability, and accessibility were the top three facilitator themes, including community awareness, availability of AP funding, client/family education, and AT service provision training.Impact: Our study identified key enabling strategies for AT access, aimed at reducing reported barriers. Enabling AP provision was determined to be multi-factorial, aimed at users/ families, service providers, organizations, communities, and policymakers. Local stakeholder groups are crucial to understanding challenges and opportunities to AP provision within a low-resource context.

Intelligent systems for sitting posture monitoring and anomaly detection: an overview

The number of people who need to use wheelchair for proper mobility is increasing. The integration of technology into these devices enables the simultaneous and objective assessment of posture, while also facilitating the concurrent monitoring of the functional status of wheelchair users. In this way, both the health personnel and the user can be provided with relevant information for the recovery process. This information can be used to carry out an early adaptation of the rehabilitation of patients, thus allowing to prevent further musculoskeletal problems, as well as risk situations such as ulcers or falls. Thus, a higher quality of life is promoted in affected individuals. As a result, this paper presents an orderly and organized analysis of the existing postural diagnosis systems for detecting sitting anomalies in the literature. This analysis can be divided into two parts that compose such postural diagnosis: on the one hand, the monitoring devices necessary for the collection of postural data and, on the other hand, the techniques used for anomaly detection. These anomaly detection techniques will be explained under two different approaches: the traditional generalized approach followed to date by most works, where anomalies are treated as incorrect postures, and a new individualized approach treating anomalies as changes with respect to the normal sitting pattern. In this way, the advantages, limitations and opportunities of the different techniques are analyzed. The main contribution of this overview paper is to synthesize and organize information, identify trends, and provide a comprehensive understanding of sitting posture diagnosis systems, offering researchers an accessible resource for navigating the current state of knowledge of this particular field.

Assistive technology in public policies: trends in the international debate and implications for Brazil

PURPOSE

The objectives of this study(1) were threefold: to identify the main topics related to the international debate on Assistive Technology (AT) public policies, to analyze the Brazilian case in light of these topics, and to extract lessons that could be applied in Brazil and other countries to advance progress in the field.

METHODOLOGY

A qualitative study was conducted through a critical literature review, involving the search for, selection, and analysis of articles indexed in two information source portals and four databases from 2007 to 2023. International and Brazilian laws, reports, and other publications specifically related to AT policies were also included.

RESULTS

The analysis of 186 articles and Brazilian documents facilitated the examination of four themes: AT policies from a human rights perspective, public procurement, service delivery systems, and national plans. A subset of 107 publications was then selected for detailed analysis.

DISCUSSION

Initiatives such as implementing a national plan, establishing an AT research center, and creating a product catalog are considered virtuous. Enhancing the freedom of choice for products and developing public procurement mechanisms are identified as additional strategies to reinforce protections of human rights in Brazil.

CONCLUSIONS

Policy dynamics and national and international experiences suggest the potential for expanding initiatives and creating new solutions in Brazil. Universities and other scientific institutions emerge as promising loci for generating new knowledge to support the formulation of AT policies and facilitate their debate and further development.

Predicting adoption of the assistive technology open platform: extended unified theory of acceptance and use of technology

PURPOSE

The Assistive Technology (AT) Open Platform supports people with disabilities, older people, and developers in co-creating new assistive products outside the business realm. To address dissatisfaction with and non-adoption of commercial assistive products, the National Rehabilitation Centre in South Korea created an AT Open Platform as an open-source AT sharing platform to research and develop appropriate assistive technology suitable for users' needs. The emerging concept of AT Open Platform is new for both assistive product users and developers in South Korea. The Extended Unified Theory of Acceptance and Use of Technology (UTAUT2) was utilised to understand the factors influencing the adoption of the AT Open Platform and to gain further insights on its design and future use.

MATERIALS AND METHODS

Interviews were conducted with six potential AT Open Platform users to develop a questionnaire for predicting behavioural intention. Subsequently, we surveyed 175 potential users to validate the UTAUT2.

RESULTS

The results revealed that behavioural intention was significantly predicted by social influence, performance expectancy, facilitating conditions, and hedonic motivation.

CONCLUSIONS

The AT Open Platform should focus on both online and offline platforms to educate and facilitate the co-creation of ATs for assistive product users and makers. This study, which targeted assistive product users and developers, has significant implications for policymakers and future research in using and adopting the AT Open Platform as it reflects the actual voices of the platform's stakeholders.

Use and underuse of mobility aids in individuals with visual impairment: a cross-sectional study of a Norwegian sample

PURPOSE

To examine the use and underuse of mobility aids in individuals with visual impairment.

METHODS

A telephone survey including a probability sample of 736 adults who were members of the Norwegian Association of the Blind and Sighted (response rate: 61%). The interviews took place between January and May 2017, collecting information about access, use, underuse and training in five types of mobility aids (white cane, guide dog, GPS, door-to-door transport and sighted guide). For each mobility aid, we obtained data for underuse defined as non-use despite expecting benefits of use in terms of increased mobility or safety. Participants also answered questions about loneliness (Three-Item Loneliness Scale) and life satisfaction (Cantril's Ladder of Life Satisfaction).

RESULTS

Of the participants, 69% reported using at least one type of mobility aid. Use of specific aids ranged from 12% for the GPS to 52% for door-to-door transport. Estimates of underuse ranged between 14% for door-to-door transport and 28% for GPS. Underuse was not related to lack of resources, as many non-users expecting benefits had access to mobility aids and had undergone training in its use. For example, 81% of non-users of the white cane had access to a cane. In post hoc analyses, non-users who expected benefits from use had lower life satisfaction compared with users.

CONCLUSIONS

Many individuals with visual impairment do not use mobility aids. Strategies that help visually impaired individuals overcome barriers to the use of mobility aids may improve their sense of safety, mobility and quality of life.Implications of rehabilitationThe best mobility aids are those being used. Rehabilitation professionals involved in the provision of mobility aids should be sensitive to the user's lived experiences, and be alert of the cultural meanings of mobility aids and on disability in general.Rehabilitation professionals, social service workers and others need more knowledge of the psychosocial and cultural aspects related to why people do not use their mobility aids.A successful integration of mobility aids in people's daily life cannot be achieved by sufficient accessibility alone. Structured routines for follow-up of those who receive aids should be implemented, so that the aids are actually used.Due to the high rates of underuse and its possible relation to quality of life, promoting regular use of mobility aids should be prioritized.

Enhancing neurocognitive health, abilities, networks, & community engagement for older adults with cognitive impairments through technology: a scoping review introducing the ENHANCE Center

PURPOSE

Age associated cognitive impairments (CIs) result in difficulties with a wide range of daily activities. As the older adult population increases, so does the importance of understanding and supporting the needs and disabilities of those with CIs. The Enhancing Neurocognitive Health, Abilities, Networks, and Community Engagement (ENHANCE) Centre was established with a focus on developing assistive technology to support the socialisation, transportation, and prospective memory needs of older adults with CIs. The extent to which relevant literature in these domains existed was unknown.

MATERIALS AND METHODS

A scoping review identified existing research meeting the following criteria: participants aged 50+ years classified as having a CI due to mild cognitive impairment (MCI), traumatic brain injury (TBI), or stroke; and a focus on technology-based support for socialisation, transportation, and/or prospective memory activities.

RESULTS

Qualitative and quantitative data are reported from relevant studies. In addition to few studies available, it was common for studies to include 20 or fewer participants. Most assessed technology interactions at one time and few studies examined longitudinal use and benefit. While each paper examined one aspect of user-centred design, no technologies were reported that underwent all stages of the user-centred design process, from needs assessment to iterative design and usability testing, to efficacy trial.

CONCLUSIONS

Gaps highlight notable directions for future research and the important role ENHANCE can play in addressing the needs and disabilities of older adults with CIs. IMPLICATIONS FOR REHABILITATIONAlthough older adults with common cognitive impairments often experience challenges in the domains of socialisation, transportation, and/or prospective memory, few studies exist that examine assistive technology solutions in these domains.Additional research with more robust designs and larger sample sizes is needed to discover and assess assistive technology solutions for the needs and disabilities of older adults with mild cognitive impairment (MCI), traumatic brain injury (TBI), and post-stroke cognitive impairment (PSCI).The ENHANCE Centre will employ a systematic process of needs assessments, user testing, and efficacy tests to develop novel technology solutions to support the needs of older adults with common cognitive impairment.

Processes of assistive technology service delivery in Bangladesh, India and Nepal: a critical reflection

PURPOSE

This paper critically reviews and reflects on the processes for providing Assistive Technology (AT) services to Persons with Disabilities (PWD) in Bangladesh, India and Nepal. The aim is to investigate the AT service delivery systems in these countries and suggest improvements where weaknesses are identified.

MATERIALS AND METHODS

We carried out a descriptive qualitative exploratory study in Bangladesh, India and Nepal by conducting key informant interviews with policymakers (5), AT service providers (22) and mobility and hearing related AT service users (21). We used a directed content analysis approach guided by a seven-point AT service delivery process model to thematically analyse the existing processes for AT service delivery, from first contact through to follow-up and maintenance.

RESULTS

AT service delivery processes are sub-optimal in all three countries, and improvements are needed. No common AT service delivery process was found, although there are common features. In general, it is easier for PWDs in India and Nepal to access AT than for those in Bangladesh, but all three countries are failing to live up to their commitments to uphold the human rights of PWDs.

CONCLUSIONS

Although good elements of AT service delivery processes can be identified, the systems in all three countries are fragmented and generally weak. A more holistic approach of looking at the process of AT service delivery, from first contact right through to follow-up and device maintenance, with a single door service delivery system, free of cost at the point of service is recommended in these countries. IMPLICATIONS FOR REHABILITATIONAlthough we found significant weaknesses in AT delivery in all three countries, there are some good AT service delivery practices and opportunities for these countries to learn from one another.A systematic and stepwise approach to assessing current AT service delivery processes in the three countries - examining the delivery system as a whole, from initiation to repair and management - can help identify opportunities to improve the process for (prospective) AT users.A more coherent single door system of AT service delivery will increase the quality and efficiency of the fragmented AT service delivery practices in Bangladesh, India and Nepal.

Caeski: an assistive technology for the communication of persons with deafblindness

PURPOSE

Caeski is a keyboard with 12 vibrating keys that connects to an application via smartphone. This assistive technology aims to facilitate the communication of persons with deafblindness in presential contexts or with people who can be anywhere in the world. The purpose is to present this assistive technology and analyse the viability of its use through tests with eleven persons with deafblindness.

MATERIALS AND METHODS

The study design consisted of ten days of testing with eleven persons with deafblindness and five interpreters who had the function of passing the information about the content of the tests.

RESULTS

The tests showed that most participants were able to communicate through Caeski. In addition, the tests showed the need to add the function of repeating the reception of information via vibration to confirm the understanding. The results demonstrated the need for more training time to improve the learning of accented words and long sentences. Therefore, training time and previous contact with technological devices are factors that influence the result of the tests.

CONCLUSION

The use of Caeski is feasible and as future perspectives, this assistive technology can be used in association with similar assistive technologies such as Perkins Machine and Braille Line, preventing possible tactile overloads. In addition, can be applied in the educational context, from literacy to university. Studies with longer training time should be conducted to confirm the results. The implications for rehabilitation:Social interactions, presential and online, with deafblind and non-deafblind persons anywhere in the world.Literacy and cognitive development of persons with deafblindness.Digital inclusion for occupational, school or academic contexts.

Assistive technologies are central to the realization of the Convention on the Rights of Persons with Disabilities

PURPOSE

In this paper, we highlight examples of how AT may play a role in realizing each of the fundamental rights affirmed in the UNCRPD.

MATERIALS AND METHODS

We conducted an indicative literature search for relevant literature to each of the substantive articles of the CRPD.

RESULTS

Assistive technology plays a critical role in achieving the rights affirmed by the Convention on the Rights of Persons with Disabilities.

CONCLUSIONS

Ensuring adequate provision of AT by states parties is critical to the progressive realization of the rights of persons with disabilities and to fulfilling commitments made by states parties upon ratification of the CRPD.Implications for rehabilitationAssistive technology (AT) is critical to enable full participation of persons with disability in society and the achievement of rights affirmed by the Convention on the Rights of Persons with Disabilities.Governments and other key stakeholders should endeavour to improve access to AT through inclusive, evidence-informed programs and services.Advocacy is required to improve access to AT through universal health coverage.

Assistive technology needs, access and coverage, and related barriers and facilitators in the WHO European region: a scoping review

PURPOSE

Globally, assistive technology (AT) is used by over 1 billion people, but the prevalence of needs and access to AT in specific countries or regions is largely unknown. This scoping review summarises the evidence available on the prevalence of needs, access and coverage of AT in the World Health Organisation European Region and the barriers and facilitators to its use.

METHODS

Relevant publications were identified using a combination of two strategies: 1) a systematic search for AT publications in five scientific literature databases; and 2) consultations with 76 of the Region's AT experts.

RESULT

The search strategies yielded 103 publications, 62 of them identified by the systematic search. The included publications were predominantly from six countries, and 18 countries were unrepresented. Information on AT use for specific functional impairments was present in 57 publications: AT for hearing impairment in 14 publications; vision in 12; mobility, 12; communication, 11; self-care, 6; and cognition, 2. AT needs for vision and hearing impairment were more likely to be met (1-87% and 5-90%, respectively) compared with communication and cognition impairments (10-60% and 58%, respectively). The barriers and facilitators to AT access described were linked to accessibility, affordability and acceptability.

CONCLUSION

Data on AT prevalence and coverage are limited in both quantity and quality. Agreed-upon definitions of functional impairment and assistive product categories and standards for data collection are needed to facilitate data comparisons and to build a more representative picture of AT needs and coverage.Implications for rehabilitationComprehensive and disaggregated data concerning the prevalence of needs and coverage of AT is needed to enable the development of responsive policies and actions.The literature available on the prevalence of needs and coverage of AT in the WHO European Region is primarily focussed on a small subset of countries and comparisons between studies are limited due to the use of different data collection strategies.Evidence concerning barriers and facilitators to AT access across countries is more consistent and can be organised across the key themes of accessibility, affordability and acceptability of AT.There is a need for consensus among multiple AT actors on standardised definitions for functional impairment and assistive product categories and standards for data collection to enable a more representative picture to be built of AT needs and coverage across the WHO European Region and globally.

Virtual reality experiential learning improved undergraduate students' knowledge and evaluation skills relating to assistive technology for older adults and individuals with disabilities

BACKGROUND

The aging population has caused assistive technology (AT) to receive attention. Thus, ensuring accurate user comprehension of AT has become increasingly crucial, and more specialized education for students in relevant fields is necessary. The goal of this study was to explore the learning outcomes in the context of AT for older adults and individuals with disabilities through the use of VR experiential learning.

METHODS

A parallel-group design was used. Sixty third-year university students studying gerontology and long-term-care-related subjects in Taiwan were enrolled, with the experimental (VR) and control (two-dimensional [2D] video) groups each comprising 30 participants. Both groups received the same 15-minute lecture. Subsequently, the experimental group received experiential learning through a VR intervention, whereas the control group watched a 2D video to learn. The students' knowledge of AT was assessed using a pretest and posttest. Additionally, their skills in evaluation of residential environments were assessed using the Residential Environment Assessment (REA) Form for Older Adults. All data analyses were performed with SPSS version 22.

RESULTS

In the posttest conducted after the intervention, the experimental group exhibited a significant 20.67 point improvement (p < 0.05), whereas the control group only exhibited improvement of 3.67 points (p = 0.317). Furthermore, the experimental group demonstrated a significantly higher score (+ 2.17 points) on the REA Form for Older Adults than did the control group (p < 0.05).

CONCLUSION

VR experiential learning can significantly improve undergraduate students' knowledge and evaluation skills in relation to AT for older adults and individuals with disabilities.

Accuracy and Usability of Smartphone-Based Distance Estimation Approaches for Visual Assistive Technology Development

Goal: Distance information is highly requested in assistive smartphone Apps by people who are blind or low vision (PBLV). However, current techniques have not been evaluated systematically for accuracy and usability. Methods: We tested five smartphone-based distance-estimation approaches in the image center and periphery at 1-3 meters, including machine learning (CoreML), infrared grid distortion (IR_self), light detection and ranging (LiDAR_back), and augmented reality room-tracking on the front (ARKit_self) and back-facing cameras (ARKit_back). Results: For accuracy in the image center, all approaches had <±2.5 cm average error, except CoreML which had ±5.2-6.2 cm average error at 2-3 meters. In the periphery, all approaches were more inaccurate, with CoreML and IR_self having the highest average errors at ±41 cm and ±32 cm respectively. For usability, CoreML fared favorably with the lowest central processing unit usage, second lowest battery usage, highest field-of-view, and no specialized sensor requirements. Conclusions: We provide key information that helps design reliable smartphone-based visual assistive technologies to enhance the functionality of PBLV.

Internet of things (IoT)-based assistive system for patients with spinal muscular atrophy (SMA): a case report

PURPOSE

Assistive technologies based on IoT can contribute to improve quality of living of patients with severe motor difficulties by providing partial or total independence. The aim of this work was to analyse the usability and performance of an assistive system based on the IoT when is evaluated by a child patient with spinal muscular atrophy type 1 (SMA-I).

MATERIALS AND METHODS

The study involved a child with SMA-I and his caregiver. The materials used include an M5Stack Core2 kit, a mobile app, and a smart switch based on the ESP-01S card. The patient sends requests to the caregiver from the app installed on the M5Stack Core2 to a mobile app, and controls smart switches located in the rooms. The system was tested by the participants for a period of 30 days to later evaluate its usability and performance.

RESULTS

The results show that the control function of smart switches is the most used and there is no decrease in interactions over the days for the system in general. In addition, the scores obtained from both usability tests (patient and caregiver) were 87.5% and 90%, respectively. The average performance of the entire system was 93.33%.

CONCLUSION

The application of assistive technologies based on the IoT allows obtaining a practical solution that improves the development of daily activities in a patient with SMA-I.

How age and health status impact attitudes towards aging and technologies in care: a quantitative analysis

BACKGROUND

Increasing proportions of geriatric patients pose tremendous challenges for our society. Developments in assistive technologies have the potential to support older and frail people in aging and care. To reach a sustainable adoption of these technologies, the perceptions and wishes of future users must be understood. In particular, the relationships between individual health-related factors, and the perceptions of aging and using assistive technologies in severe health situations must be empirically examined.

METHODS

Addressing this research gap, our quantitative study (N = 570) investigates the impact of diverse future users' age and health status on their a) perceptions of aging, b) perceptions and acceptance of using assistive technologies in aging and care, as well as c) end-of-life decisions regarding technology usage. For this, four groups were segmented for the comparison of younger (< 50 years) healthy, younger chronically ill, older (50 + years) healthy, and older chronically ill participants.

RESULTS

The results revealed that health status is more decisive for age-related perceptions compared to age. The technology-related perceptions were slightly impacted by either chronological age or health status. The end-of-life decisions showed the most striking differences in the willingness to use assistive technologies, revealing older chronically ill participants to have more restrained attitudes towards technology usage than older healthy as well as all younger participants.

CONCLUSIONS

The findings suggest that the benefits of assistive technologies in private or professional care contexts should be communicated and implemented tailored to the respective user group's needs. Moreover, the results allow us to derive practical implications within the geriatric care context.

Training prosthesis users to switch between modes of a multi-articulating prosthetic hand

PURPOSE

Producing triggers to switch between modes of myoelectric prosthetic hands has proven to be difficult. We evaluated whether digital training methods were feasible in individuals with an upper limb defect (ULD), whether myosignals in these individuals differ from those of non-impaired individuals and whether acquired skills transfer to prosthesis use.

MATERIALS AND METHODS

Two groups participated in a 9-day pre-test-post-test design study with seven 45-minute training sessions. One group trained using a serious game, the other with their myosignals digitally displayed. Both groups also trained using a prosthesis. The pre- and post-tests consisted of an adapted Clothespin Relocation Test and the spherical subset of the Southampton Hand Assessment Procedure. After the post-test, the System Usability Scale (SUS) was administered. Clinically relevant performance measures and myosignal features were analysed.

RESULTS

Four individuals with a ULD participated. SUS-scores deemed both training methods feasible. Three participants produced only a few correct triggers. Myosignals features indicated larger variability for individuals with a ULD compared to non-impaired individuals (previously published data [1]). Three participants indicated transfer of skill.

CONCLUSIONS

Even though both training methods were deemed feasible and most participants showed transfer, seven training sessions were insufficient to learn reliable switching behaviour.Trial registration: The study was approved by the medical ethics committee of the University Medical Center Groningen (METc 2018.268).Implications for rehabilitationSwitching between pre-programmed modes of a myoelectric prosthetic hand can be learned, however it does require training.Serious games can be considered useful training tools for trigger production in early phases of myoelectric prosthesis control training.In order to evoke transfer of skill from training to daily life both task-specificity and focus of attention during training should be taken into account.

Age related increase in impairment across the life course: the use of Zomba curves to estimate assistive technology needs in Malawi

PURPOSE

Global population growth and increasing longevity means that the need for Assistive Technology (AT) will continue to increase. The level of unmet need for AT is greatest in low-income settings. The aim of this study is to identify age-related increase in impairment and to estimate the AT needs.

MATERIALS AND METHODS

We analysed secondary data from the 2018 Malawi Population and Housing Census (MPHC) based on the Washington Group on Disability Statistics (WG) short-set of questions.

RESULTS

Out of the 1,556,670 persons with one or more functional limitations or disabilities identified in the census, self-reported difficulties in all domains were markedly higher from age 40 and above. The proportion reporting one functional limitation is higher compared to two or more limitations, but at age 78-80 the proportion reporting two or more functional limitations increased above those reporting one functional limitation. Although 60.9% (60.7-61.0) and 63.5% (63.3-63.6) of those who reported difficulty in seeing and hearing were using glasses and hearing aids respectively, the estimated total need for glasses and hearing aids in this group was 98.9% (98.0-99.0) and 98.4% (98.3-98.5) respectively. The unmet need for glasses and hearing aids were therefore 38.1% and 34.9% respectively.

CONCLUSION

The differential slope of impairment curves against age is a guide to the increasing demand for AT across the life course and across different domains of functioning. Country specific analysis of impairment across age and domains is essential to understand and plan for the growing need for AT globally.IMPLICATIONS FOR REHABILITATIONIt is important to estimate and plan for impairment across life course to address the age-related increase in impairment and the increasing need for AT with age.The Zomba curves show the cumulative nature of impairment with age and the need for age and need specific provision of AT across the life course through proactive policy level actions.The significant high unmet need for glasses and hearing aids attests to similar need for other assistive products and the need for setting specific interventions to address needs of affected persons.The differential slope of impairment curves against age is a guide to the differing and increasing demand for assistive technology across the life course and across different domains of functioning.

Electric powered wheelchair control using user-independent classification methods based on surface electromyography signals

Wheelchairs are one of the most popular assistive technology (AT) among individuals with motor impairments due to their comfort and mobility. People with finger problems may find it difficult to operate wheelchairs using the conventional joystick control method. Therefore, in this research study, a hand gesture-based control method is developed for operating an electric-powered wheelchair (EPW). This study selected a comfort-based hand position to determine the stop maneuver. An additional exploration was undertaken to investigate four gesture recognition methods: linear regression (LR), regularized linear regression (RLR), decision tree (DT), and multi-class support vector machine (MC-SVM). The first two methods, LR and RLR, have promising accuracy values of 94.85% and 95.88%, respectively, but each new user must be trained. To overcome this limitation, this study explored two user-independent classification methods: MC-SVM and DT. These methods effectively addressed the finger dependency issue and demonstrated remarkable success in recognizing gestures across different users. MC-SVM has about 99.05% of both precision and accuracy, and the DT has about 97.77% accuracy and precision. All six participants were successful in controlling the EPW without any collisions. According to the experimental results, the proposed approach has high accuracy and can address finger dependency issues.

Assessing the use of co-design to produce bespoke assistive technology solutions within a current healthcare service: a service evaluation

PURPOSE

Co-design involves engaging with the end-user in the design process and may help reduce the barriers to assistive technology use. Previous research has used co-design in the provision of assistive technology, but no research has looked at applying it within a healthcare setting. This service evaluation examines the use of co-design in providing customized assistive devices within a current UK healthcare based Rehabilitation Engineering department.

METHODS

This evaluation reports on three case studies. Individuals identified a range of challenges in daily living. The participants worked with the clinician in trialling prototypes and providing feedback to develop custom devices. A mixed-method approach of questionnaires and semi-structured interviews were used to evaluate the devices provided and the co-design approach. The resources required to provide the device were also calculated.

RESULTS

Five different devices were developed, which were able to overcome the challenges identified. Results indicated participants were satisfied with both the devices and service provided. Participants expressed other benefits including increased independence, increased positive emotions and reduced mental load. Participants indicated they liked being involved in the design process and their feedback helped ensure the devices were customized to their needs.

CONCLUSIONS

The use of co-design was able to produce customized assistive device that met the needs of the individuals within a current healthcare service. Further work is required to assess the feasibility of utilising a co-design approach for the provision of other custom assistive technology in the future and explore if this can overcome the barriers to assistive technology use.Implications for rehabilitationEnd-user involvement, the design process can help enable customized assistive devices to be provided that better meet the user's needs.The custom assistive devices provided not only helped the individuals overcome the challenges identified but had wider reaching benefits for the individuals physical and mental health and wellbeing.End-users valued being able to input into the co-design process and working closely with the clinician in developing the device.

Developing a model to explain users' ethical perceptions regarding the use of care robots in home care: A cross-sectional study in Ireland, Finland, and Japan

To date, research on ethical issues regarding care robots for older adults, family caregivers, and care workers has not progressed sufficiently. This study aimed to build a model that universally explains the relationship between the use of care robots and ethical awareness, such as regarding personal information and privacy protection in home care. We examined data obtained from cross-sectional surveys conducted in Japan (n=528), Ireland (n=296), and Finland (n=180). We performed a confirmatory factor analysis by using responses to 11 items related to the ethical use of care robots. We evaluated the model based on the chi-square to degrees of freedom ratio, the comparative fit index, and the root mean square error of approximation. Subsequently, we compared the model with the Akaike's information criterion. Ten items were adopted in the final model. There were 4 factors in the model: 'acquisition of personal information', 'use of personal information for medical and long-term care', 'secondary use of personal information', and 'participation in research and development'. All factor loadings of the final model ranged between 0.63 and 0.92, which were greater than 0.6, showing that the factors had a high influence on the model. The final model was applied to each country; the fit was relatively good in Finland and poor in Ireland. Although the three countries have different geographies, cultures, demographics, and systems, this study showed that the impact of ethical issues regarding the use of care robots in home care can be universally explained by the same model.

The perspectives of participants with traumatic brain injury on prospective memory rehabilitation incorporating compensatory and metacognitive skills training

OBJECTIVE

Patient feedback is rarely gathered systematically in cognitive rehabilitation research. This study examined the perceptions and experiences of people with traumatic brain injury (TBI) who participated in a trial of a 6-session educational program for the rehabilitation of prospective memory (PM) impairment.

METHODS

A mixed methods design was used with 47 participants with TBI who completed a compensatory strategy training program (COMP) or COMP plus metacognitive strategy training program (COMP-MST) delivered by an occupational therapist. Data were collected via a participant survey, extracts from progress notes, and audiotaped discussions about learnings from the program during the final session.

RESULTS

Participants from both programs were highly satisfied and perceived improvements in everyday PM performance post-intervention. Elements that were highly valued include setting individualised client-centred goals, repetitive training of strategy use, establishing habits and routines, and receiving experiential, verbal, and written feedback.Changes including more therapy sessions were recommended.

CONCLUSIONS

Both the COMP and COMP-MST programs were perceived as effective by participants with TBI in improving their PM performance in everyday life using compensatory strategies such as assistive technology.

PRACTICE IMPLICATIONS

Routine collection of patient feedback on cognitive rehabilitation can provide valuable information to support person-centred implementation of clinical practice guidelines.

Effectiveness of technology for braille literacy education for children: a systematic review

PURPOSE

Despite the well-documented importance of braille for people who are blind or visually impaired, few studies explore technology for facilitating braille literacy education. Evaluations of the impact of using assistive devices on academics for children and youth who are blind or visually impaired are needed. This systematic review aimed to evaluate the effectiveness of technology used to support braille literacy education for children and youth.

MATERIALS AND METHODS

The population of interest was defined as children and youth aged 0-21 years who were blind or visually impaired, learning literacy through braille as their primary medium, and had not previously learned to read through sighted methods. Sixteen academic education, health sciences, multidisciplinary, rehabilitation, and engineering databases were searched.

RESULTS

Twelve peer-reviewed, English-language articles were included in the review evaluating a total of 176 participants. In general, the quality of research was low with little evidence to support the use of current technology for braille literacy education.

CONCLUSIONS

Standards of technology evaluation for braille literacy must be developed. Furthermore, assistive technologies for braille literacy education for children and youth should provide real-time auditory and tactile feedback, enable independent study/practice and editing of work, and be easy to use, motivational, and engaging. IMPLICATIONS FOR REHABILITATIONStandards must be developed to ensure technology evaluation is consistent among researchers and clinicians to achieve the best outcomes.Technologies for braille literacy education for children and youth should provide real-time auditory and tactile feedback, enable independent study/practice and editing of work, and be easy to use, motivational, and engaging.