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Purpose: 

To develop a predictive model to inform the probability of lower limb prosthesis users’ functional potential for ambulation.

Materials and Methods: 

A retrospective analysis of a database of outcomes for 2770 lower limb prosthesis users was used to inform a classification and regression tree analysis. Gender, age, height, weight, body mass index adjusted for amputation, amputation level, cause of amputation, comorbid health status and functional mobility score [Prosthetic Limb Users Survey of Mobility (PLUS-M™)] were entered as potential predictive variables. Patient K-Level was used to assign dependent variable status as unlimited community ambulator (i.e., K3 or K4) or limited community/household ambulator (i.e., K1 or K2). The classification tree was initially trained from 20% of the sample and subsequently tested with the remaining sample.

Results: 

A classification tree was successfully developed, able to accurately classify 87.4% of individuals within the model’s training group (standard error 1.4%), and 81.6% within the model’s testing group (standard error 0.82%). Age, PLUS-M™ T-score, cause of amputation and body weight were retained within the tree logic.

Conclusions: 

The resultant classification tree has the ability to provide members of the clinical care team with predictive probabilities of a patient’s functional potential to help assist care decisions.

Purpose: An increasing number of people will live with disabilities in their homes and consequently, the need for home-based interventions will increase. Housing adaptations (HAs) are modifications to the physical home environment with the purpose to enhance independence for a heterogeneous group of people. Increasing the knowledge of the characteristics of HA clients by exploring their heterogeneity, could facilitate the planning of interventions and allocation of resources. The purpose of this article was to identify and validate HA client profiles.

Materials and methods: This cross-sectional study applied a mixed methods design to identify profiles of HA clients through cluster analysis confirmed by qualitative interview data. The sample consists of 241 HA clients in Sweden with a mean age of 75.1 years.

Results: A classification into five groups emerged as the one best describing the heterogeneity of characteristics among this sample of clients. Five client profiles were outlined based on their age and level of disability, and the variation between the profiles was confirmed through the qualitative interview data.

Conclusions: The identified client profiles are a step towards a better understanding of how home-based interventions could be delivered more effectively to groups of HA clients, based on their different characteristics.

Purpose: 

To investigate the bilateral postural adaptations as a result of standing on an increasingly unstable sway-referenced support surface with both the intact and prosthetic limb for transtibial prosthesis users (TPUs).

Method: 

TPUs (n = 14) and matched controls (n = 14) stood quietly in multiple foot placement conditions (intact foot, prosthetic foot and both feet) on a sway-referenced support surface which matched surface rotation to the movement of the centre of pressure (CoP). Force and motion data were collected and used to analyse CoP mean position, displacement integral and force components under intact and prosthetic limbs.

Results: 

Significant differences were found between prosthesis users and controls in CoP mean position in anteroposterior (1.5 (95% CI, 1.2–1.8) cm) and mediolateral directions (3.1 (95% CI, 0.5–5.7) cm. CoP displacement integrals were significantly different greater for prosthesis user group in the anteroposterior direction. Force components differences were found in all planes (anteroposterior: 0.6 (95% CI, 0.4–0.8 N); mediolateral: 0.1 (95% CI, 0.0–0.2 N & 0.3 (95% CI, 0.2–0.4) N, inferosuperior: 2.2 (95% CI, 1.4–3.0) N).

Conclusions: 

TPUs have bilateral static and dynamic postural adaptations when standing on a sway-referenced support surface that is different to controls, and between prosthetic and intact sides. Results further support evidence highlighting importance of the intact limb in maintenance of postural control in prosthesis users. Differences indicate clinical treatment should be directed towards improving outcomes on the intact side.

Purpose: 

Hip fractures are an important public health issue. Ninety-five percent of hip fractures are caused by falls, with those at greatest risk including residents of long-term care facilities. Hip protectors can be effective in preventing hip fractures, but levels of acceptance and adherence may be low. We report on work to develop research into a new hip protector that aims to overcome some of the acceptance and adherence challenges.

Methods: 

We held five patient and public consultation events involving 147 older adults and 10 long-term care sector staff in the Midlands and North West of England. At each event, participants were shown the Fall-Safe Assist hip protector, which includes built-in mobile technology to record information about falls and summon help from caregivers.

Results: 

Participants were positive about the product’s potential utility and impact upon confidence in moving around. However, many participants held highly personal perceptions of their vulnerability and need, and expressed concerns about the esthetics and practicality of the accompanying underwear. Participants highlighted potential challenges from poor mobile connectivity, and expressed concerns about product cost.

Conclusions:

 Future research will need to ensure flexible and sensitive approaches to recruitment. Further refinement to the product design may be useful. Individual interviews and questionnaires would help capture participants’ perceptions on personal topics, and measures of changes in confidence. Research sites will need to be compatible with technological functionality. It will be necessary to have a robust protocol in place for withdrawal of the product at the end of any clinical research.

Introduction:

Swedish municipalities face a number of daunting challenges; an aging population, the public’s increased demands and expectations on municipality services, and a strained economy to mention some. Welfare technology, a Scandinavian concept launched to promote digitalization, is seen as one solution to meet these challenges.

Objective: 

Despite these promises, few welfare technology applications are offered by local Swedish municipalities and care organizations. Numerous studies have shown that Swedish municipalities have a great interest in welfare technologies.

Methods: 

In this article, we draw on empirical research in one Swedish municipality. Through two case studies it is illustrated how technological change and municipality employment of welfare technologies are employed.

Results: 

These case studies show how core values of care are being lost in the quest for digitalization due to the lack of organizational skills and knowledge in transforming the relationship of caregiving and care-receiving through the use of digital technology.

Conclusions: 

Digitalization and welfare technologies deployed ought to represent and support the core values of caregiving and to receive care. Thus, digital transformation most likely will transform conditions for care receivers and working conditions for care workers. New work processes will evolve, which in turn produce new meanings of home help service work and caregiving.

This paper is based on work from the Global Research, Innovation, and Education on Assistive Technology (GREAT) Summit that was coordinated by WHO’s Global Cooperation on Assistive Technology (GATE). The purpose of this paper is to describe the needs and opportunities embedded in the assistive product lifecycle as well as issues relating to the various stages of assistive product mobilization worldwide.

The paper discusses assistive technology product terminology and the dangers of focusing on products outside the context and rolling out products without a plan. Additionally, the paper reviews concepts and issues around technology transfer, particularly in relation to meeting global needs and among countries with limited resources. Several opportunities are highlighted including technology advancement and the world nearing a state of readiness through a developing capacity of nations across the world to successfully adopt and support the assistive technology products and applications.

The paper is optimistic about the future of assistive technology products reaching the people that can use it the most and the excitement across large and small nations in increasing their own capacities for implementing assistive technology. This is expressed as hope in future students as they innovate and in modern engineering that will enable assistive technology to pervade all corners of current and potential marketplaces. Importantly, the paper poses numerous topics where discussions are just superficially opened. The hope is that a set of sequels will follow to continue this critical dialog.

Parkinson’s is a neurodegenerative condition associated with several motor symptoms including tremors and slowness of movement. Freezing of gait (FOG); the sensation of one’s feet being “glued” to the floor, is one of the most debilitating symptoms associated with advanced Parkinson’s. FOG not only contributes to falls and related injuries, but also compromises quality of life as people often avoid engaging in functional daily activities both inside and outside the home. In the current study, we describe a novel system designed to detect FOG and falling in people with Parkinson’s (PwP) as well as monitoring and improving their mobility using laser-based visual cues cast by an automated laser system. The system utilizes a RGB-D sensor based on Microsoft Kinect v2 and a laser casting system consisting of two servo motors and an Arduino microcontroller. This system was evaluated by 15 PwP with FOG. Here, we present details of the system along with a summary of feedback provided by PwP. Despite limitations regarding its outdoor use, feedback was very positive in terms of domestic usability and convenience, where 12/15 PwP showed interest in installing and using the system at their homes.

Assistive technology (AT) is an essential facilitator of independence and participation, both for people living with the effects of disability and/or non-communicable disease, as well as people aging with resultant functional decline. The World Health Organization (WHO) recognizes the substantial gap between the need for and provision of AT and is leading change through the Global Cooperation on Assistive Technology (GATE) initiative. Showcasing innovations gathered from 92 global researchers, innovators, users and educators of AT through the WHO GREAT Summit, this article provides an analysis of ideas and actions on a range of dimensions in order to provide a global overview of AT innovation. The accessible method used to capture and showcase this data is presented and critiqued, concluding that “innovation snapshots” are a rapid and concise strategy to capture and showcase AT innovation and to foster global collaboration.

Assistive technology (AT) is a powerful enabler of participation. The World Health Organization’s Global Collaboration on Assistive Technology (GATE) programme is actively working towards access to assistive technology for all. Developed through collaborative work as a part of the Global Research, Innovation and Education on Assistive Technology (GREAT) Summit, this position paper provides a “state of the science” view of AT users, conceptualized as “People” within the set of GATE strategic “P”s. People are at the core of policy, products, personnel and provision. AT is an interface between the person and the life they would like to lead. People’s preferences, perspectives and goals are fundamental to defining and determining the success of AT. Maximizing the impact of AT in enabling participation requires an individualized and holistic understanding of the value and meaning of AT for the individual, taking a universal model perspective, focusing on the person, in context, and then considering the condition and/or the technology. This paper aims to situate and emphasize people at the centre of AT systems: we highlight personal meanings and perspectives on AT use and consider the role of advocacy, empowerment and co-design in developing and driving AT processes.