James A Lenker

James A Lenker
University at Buffalo, The State University of New York | SUNY Buffalo · Department of Rehabilitation Science

About

54
Publications
18,242
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1,056
Citations
Introduction
Skills and Expertise

Publications

Publications (54)
Article
To assess the usefulness of an mHealth strategy to support assimilation of adaptive feeding interventions into daily practices of community-based rehabilitation (CBR) workers. The mHealth strategy was evaluated in a 4-week field test. At baseline, all participants received a 1-hour, hands-on training on adaptive feeding techniques. The intervention...
Article
Importance: Rehabilitation researchers and occupational therapy practitioners frequently conduct projects that involve the provision of services or the dissemination of knowledge in low- and middle-income countries (LMICs); however, the needs assessment process underlying these transcultural projects is often underreported. Objective: To identif...
Article
Importance: When working with clients who have experienced spinal cord injury (SCI), occupational therapy practitioners can face challenges in achieving desired results during functional activity when using electrical stimulation (ES) interventions. In an effort to understand current practice, a survey study was conducted. Objective: For people...
Article
Date Presented 04/04/19 For clients with spinal-cord injury (SCI), OTs commonly apply electrical stimulation (ES) to facilitate upper-extremity activities. However, ES is inconsistently implemented in the clinic. In response to this practice gap, the current study conducted focus groups with senior OTs having experience using ES for clients with SC...
Article
Design challenges in wheelchair securement for fixed-route, large accessible transit vehicles (LATVs) often create difficulties for passengers who use wheelchairs and operational inefficiencies for public transit agencies. Recent innovations in wheelchair securement technology for LATVs may reduce these challenges. This study explored the usability...
Article
For more than two decades the assistive technology outcomes literature has featured repeated calls for clinical research to demonstrate the impact of device recommendations, as well as substantial discussion of tools for measuring AT outcomes. Unfortunately, data are still not routinely collected in most AT service delivery settings, which undermin...
Poster
Date Presented 4/20/2018 Increased use of mobile devices in developing countries may provide an effective medium for ongoing training and support for community-based rehabilitation workers. This study found that ongoing smartphone access enabled CBR workers in rural India to view video modules and confidently share strategies with families of child...
Article
To encourage greater fixed route transit use for people with disabilities, transit agencies are implementing morrigorous paratransit eligibility determination practices. Previous studies identified best practice strategies for eligibility determination, but did not fully document the implementation of these strategies, nor the factors contributing...
Article
Full-text available
Background: Low ridership of public transit buses among wheeled mobility device users suggests the need to identify vehicle design conditions that are either particularly accommodating or challenging. The objective of this study was to determine the effects of low-floor bus interior seating configuration and passenger load on wheeled mobility devic...
Article
With a motivation to make progress towards the United Nations Sustainable Development Goal of sanitation for all by 2030, this paper proposes a framework to guide future research and evaluation of sanitation-for-All initiatives. The proposed framework builds upon the social model of disability, emphasizes a human rights perspective regarding sanita...
Article
Full-text available
The emergence of low-floor bus designs and related regulatory standards in the U.S. have resulted in substantial improvements in public transit accessibility. However, passengers using wheeled mobility devices still experience safety concerns and inefficiencies in boarding, disembarking, and interior circulation on low-floor buses. This study inves...
Article
Date Presented 3/30/2017 This research evaluates the implementation of Complete Streets across the United States, including a case study in Buffalo, New York. Findings will equip rehabilitation professionals, policymakers, and designers with best practices to create more social participation opportunities for a wider range of users. Primary Author...
Article
Date Presented 3/31/2017 This presentation reports the findings from a survey of 63 occupational therapists who used electrical stimulation when treating patients with spinal cord injury. The study findings offer a snapshot of an emerging intervention area that is not yet standardized. Primary Author and Speaker: Timothy Dionne Contributing Authors...
Article
The research literature on access ramps used in transit vehicles is undermined by inconsistent methodologies used across studies, thus providing an inconclusive evidence base for proposed Federal guidelines that would impose a maximum 1:6 slope for all deployment situations. The current study assessed the usability of ramp slope for mobility aid us...
Article
Full-text available
This study assessed the goals of universal design (UD) defined by Steinfeld and Maisel (2012), as a conceptual framework for classifying usability problems experienced in the home kitchen environment by diverse user populations. Seven focus groups were conducted with three populations: wheelchair users, persons with vision impairment, and older adu...
Article
Full-text available
This study assessed the goals of universal design (UD) defined by Steinfeld and Maisel (2012), as a conceptual framework for classifying usability problems experienced in the home kitchen environment by diverse user populations. Seven focus groups were conducted with three populations: wheelchair users, persons with vision impairment, and older adu...
Article
Date Presented 4/16/2015 This presentation reports results of a study in which three automated teller machine interfaces were evaluated with four diverse participant groups. The outcome measures included observed and self-reported usability measures. The results across the four groups were compared and contrasted.
Article
Assistive technology is often recommended with the aim of increasing user independence and reducing the burden on informal caregivers. However, until now, there has been no tool to measure the outcomes of this process for caregivers. To describe the development of the Caregiver Assistive Technology Outcome Measure (CATOM), a tool developed to measu...
Article
Purpose: The current study explored domains of assistive technology (AT) device outcomes that are most valued by AT users. A secondary objective was to identify elements in the device acquisition process that affect outcomes. Method: Focus groups were conducted at geographically dispersed locations within the USA. The groups were moderated by ex...
Article
Full-text available
Objective: The aim of this study was to demonstrate experimentally that an assistive technology (AT) intervention improves older AT users' activity performance and satisfaction with activity performance and decreases their caregivers' sense of burden. Design: This study was a delayed intervention, randomized control trial. Baseline data were col...
Conference Paper
Full-text available
Low-floor buses with folding ramp access represent a significant improvement in accessible public transit for passengers with mobility disabilities. However, the safety and usability aspects of the interior design of low-floor buses on blind and visually impaired users has not been studied in much detail. A laboratory study was completed using a st...
Article
Full-text available
Informal caregivers are a critical yet frequently unacknowledged part of the healthcare system. It is commonly presumed that providing assistive technology will decrease the burden of their care provision; however, no review has evaluated the evidence behind this assumption. Therefore, a systematic review was undertaken to evaluate evidence of the...
Article
This paper evaluates four classifications of assistive technology (AT) services for their ability to support outcomes research. The evaluation involved classifications intended for various purposes, including those created to support practitioner education and third-party reimbursement decisions. Each was analyzed according to a common framework: a...
Article
Full-text available
Low-floor buses represent a significant improvement in accessible public transit for passengers with limited mobility. However, there is still a need for research on the inclusive design of transit buses to identify specific low-floor bus design conditions that are either particularly accommodating or challenging for passengers with functional and...
Article
The objective of this time-motion study was to document the type and duration of activities performed by wheelchair suppliers during the provision of wheeled mobility and seating devices. Researchers observed eight rehabilitation technology suppliers and four rehabilitation technicians over two weeks in two metropolitan areas. Data were collected o...
Article
Full-text available
While there are many available tools and methods to evaluate product usability, few have been tested on user groups with disabilities and even fewer systematically consider universal design principles. This paper describes the development and preliminary psychometric testing of the Rapid Assessment of Product Usability & Universal Design (RAPUUD),...
Article
This article reports on the development of a new taxonomy for mobility-related assistive technology devices. A prototype taxonomy was created based on the extant literature. Five mobility device experts were engaged in a modified Delphi process to evaluate and refine the taxonomy. Multiple iterations of expert feedback and revision yielded consensu...
Article
Recent reports in the rehabilitation literature have suggested that treatment theory, intervention specification, and treatment fidelity have important implications for the design, results, and interpretation of outcomes research. At the same time, there has been relatively little discussion of how these concepts bear on the quality of assistive te...
Article
Full-text available
The article describes the methodology and psychometric evaluation of an assistive technology (AT) outcomes measurement tool, the Usability Scale for Assistive Technology-Wheeled Mobility module (USAT-WM), as a tool to capture user-centered usability of wheeled-mobility devices. The construction of the USAT-WM was driven by a qualitative inquiry foc...
Article
Assistive technology (AT) devices enable people with disabilities to function in multiple contexts and activities. The usability of such devices is fundamentally indicative of the user's level of participation in multiple roles and occupations. Seventy people who used power wheelchairs were interviewed using a novel tool, the Usability Scale for As...
Article
To develop and validate the content of a conceptual framework concerning outcomes for caregivers whose recipients are assistive technology users. The study was designed in four stages. First, a list of potential key variables relevant to the caregivers of assistive technology users was generated from a review of the existing literature and semistru...
Article
This article evaluates six mobility-related device classifications for their ability to support assistive technology outcomes research. Our evaluation considered classifications that had been created for various purposes, including those created to support third-party reimbursement decisions, consumer education and safety, and research. Classificat...
Conference Paper
Full-text available
Stairways into building or public vehicles are important environmental barriers that limit accessibility to users of wheeled mobility devices. Powered van lifts can serve as an alternative to stairs, ramps or porch lifts, but they have not yet been carefully evaluated for this purpose. The objectives of this study were to characterize the usability...
Article
Full-text available
The concept of product usability has been discussed in several areas of product research and development. Usability, within the realm of assistive technology (AT) devices, determines how effectively and efficiently AT users with disabilities can function in different contexts and environments. This article conceptualizes and proposes the significan...
Article
Chinese language instruments for measuring the impact of assistive technology are needed. This article reports on the development and preliminary evaluation of a Chinese (Taiwanese) translation of the Psychosocial Impact of Assistive Devices Scale. The language translation process followed standard procedures for cross-cultural adaptation, includin...
Article
Although there have been numerous calls for increasing the quantity and quality of assistive technology outcomes research, no one has analyzed the nature of data that the field has been accumulating. This article summarizes our evaluation of 82 outcome studies, published between 1980 and 2001, addressing assistive technology devices (ATDs). Our dat...
Article
Predictive conceptual models help us frame research questions, interpret results, and guide clinical practice. Although numerous models have appeared in the assistive technology (AT) literature, none has been shown to predict AT usage. The lack of a valid predictive model indicates the need for development of new approaches to modeling AT outcomes....
Article
Conceptual models provide a theoretical basis for advancing scientific knowledge and improving professional practice. Although numerous assistive technology-related models have appeared in the literature, there has been no systematic effort to assess them. Six conceptual models are reviewed here: Cook and Hussey's Human-Activity-Assistive Technolog...
Article
The objective of this study was to evaluate the reliability of a new structural anthropometric measurement approach designed for those who may not have the capability to hold standardized postures. Forty-eight men and women participated in the study. Two trained researchers collected the anthropometric measurements. Twenty anthropometric dimensions...
Article
Historically, rehabilitation engineering and assistive technology practitioners have received inconsistent pre-professional training. A survey of current post-secondary professional curricula reveals several facets of rehabilitation engineering and assistive technology educational models that remain diverse. Suggestions for improvement and standard...

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