Measurement properties of the Wheelchair Skills Test for scooters among experienced users

Wheelchair Skills Test in simulated versus community settings: a mixed-methods crossover study of experienced motorized mobility scooter users

PURPOSE

The Wheelchair Skills Test (WST) is commonly conducted in a simulated setting. Although the WST can be done in the community setting, its usefulness in this setting has not been systematically evaluated. The purpose of this study was to compare the WST in the simulated versus community settings, and to explore participants' perceptions of performing in each environment.

METHODS

For this mixed-methods study, we studied 20 motorized mobility scooter users who had used their devices for ≥ 3 months. Each participant completed the WST Version 4.3 twice in random order - once in a simulated setting and once in their community within a two-week period. Semi-structured interviews were conducted after completion of the WST in both environments. A self-report version of the WST (WST-Q) was also completed that measured perceived capacity, frequency of skill performance, and confidence.

RESULTS

The mean (SD) total WST score in the simulated setting was 88.9% (8.6) and 92.7% (7.8) in the community setting. The two WST scores were moderately correlated (r = 0.306, p = 0.190). Community-setting WST scores were moderately correlated with WST-Q confidence scores. Simulated-setting scores were moderately correlated with WST-Q frequency scores. Although most participants preferred performing the WST in their communities due to convenience and familiarity, they perceived the simulated setting to be reflective of their community settings.

CONCLUSION

Despite challenges, community-based testing may provide a better reflection of everyday performance for scooter users than testing in a simulated environment.

A Remote-Learning Course can improve the subjective wheelchair-skills performance and confidence of wheelchair service providers: an observational cohort study

PURPOSE

To test the hypothesis that a Remote-Learning Course improves the subjective wheelchair-skills performance and confidence of wheelchair service providers, and to determine the participants' views on the Course.

METHODS

This was an observational cohort study, with pre-post comparisons. To meet the objectives of the six-week Course, the curriculum included self-study and weekly one-hour remote meetings. Participants submitted their Wheelchair Skills Test Questionnaire (WST-Q) (Version 5.3.1) "performance" and "confidence" scores before and after the Course. Participants also completed a Course Evaluation Form after the Course.

RESULTS

The 121 participants were almost all from the rehabilitation professions, with a median of 6 years of experience. The mean (SD) WST-Q performance scores rose from 53.4% (17.8) pre-Course to 69.2% (13.8) post-Course, a 29.6% relative improvement (p < 0.0001). The mean (SD) WST-Q confidence scores rose from 53.5% (17.9) to 69.5% (14.3), a 29.9% relative improvement (p < 0.0001). Correlations between performance and confidence were highly significant (p < 0.0001). The Course Evaluation indicated that most participants found the Course useful, relevant, understandable, enjoyable, "just right" in duration, and most stated that they would recommend the Course to others.

CONCLUSIONS

Although there is room for improvement, a Remote-Learning Course improves the subjective wheelchair-skills performance and confidence scores of wheelchair service providers by almost 30%, and participants were generally positive about the Course.

Qualitative experiences of new motorised mobility scooter users relevant to their scooter skills: a secondary analysis

OBJECTIVE

To explore the experiences of new motorised mobility scooter users from the perspectives of the assessment and training of scooter skills.

DESIGN

Descriptive secondary analysis of qualitative data.

SETTING

Community.

PARTICIPANTS

20 New users of motorised mobility scooters.

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

Directed qualitative analysis of up to four semi-structured interviews over the course of the first year of scooter use, to identify themes and sub-themes that could inform recommendations regarding assessment and training protocols.

RESULTS

We identified two themes. The first related to potential new content. As one example of the sub-themes, there were many excerpts that dealt with the use of skills in various combinations and permutations that were used to carry out activities during everyday life and participate in society. These excerpts suggested the importance of training skills in combination to facilitate skill transfer (or generalizability). The second theme is related to enhancements of existing content. As one example of the sub-themes, there were several excerpts that dealt with scooter security. These excerpts led to the recommendation that removing and inserting the scooter key should be added to the assessment criteria for the "turns power on and off" skill of the Wheelchair Skills Test (WST) and its questionnaire version (WST-Q).

CONCLUSIONS

The experiences of scooter users over the first year of receiving a scooter appear to be relevant to the assessment and training of scooter skills and suggest themes for further study. Clinical trial registration number: NCT02696213 IMPLICATIONS FOR REHABILITATIONThe experiences of new scooter users are highly relevant to the assessment and training of scooter skills.These experiences suggest both potential new content and enhancements of existing content to the Wheelchair Skills Program Manual.

Wheeled Mobility Use on Accessible Fixed-Route Transit: A Field Study in Environmental Docility

Multiple field studies provide qualitative accounts of usability barriers experienced by users of wheeled mobility devices on public transit. This study aimed to examine these usability barriers from the theoretical perspective of Environmental Docility by quantifying the relationship between functional capabilities of wheeled mobility device users and ingress-egress performance on accessible fixed-route transit vehicles in an urban setting. Twenty-eight wheeled mobility users each completed three trips on a predetermined route through the local public transit system. Ingress and egress times, user-reported usability ratings and open-ended comments were analyzed. Regression analyses indicated significant interactions between age and minimum parallel-park length on ingress and egress times. Specifically, lower functional capability reflected in older age and less maneuvering ability predicted decreased performance (longer ingress-egress times), indicating less adaptability to environmental demands and agreement with the Environmental Docility Hypothesis. Usability ratings and comments revealed difficulty with negotiating access ramps and turning maneuvers in the vehicle interior and in proximity to other passengers. Despite compliance with accessibility standards, current design of transit vehicles present substantial usability barriers for wheeled mobility users. Environmental Docility provides a theoretical basis to identifying modifiable factors related to person and environment for improving usability of public transit for people aging and/or with mobility impairments.

Correlates of self-reported Wheelchair Skills Test Questionnaire scores of new users of mobility scooters: a cross-sectional study

OBJECTIVES

To describe the subjective reported scooter-skill scores of new mobility scooter users and to identify significant correlations with other characteristics and measures.

MATERIALS AND METHODS

This was a single-centre study using a cross-sectional design. Participants (N = 22) completed the Wheelchair Skills Test-Questionnaire (WST-Q) Version 4.3 for scooter users. It measures the users' perceived capacity (what the user can do), performance (what the user actually does), and confidence (or self-efficacy). Their scooter skills were also rated objectively with the Wheelchair Skills Test (WST). They completed standardised measures of cognition, hearing, vision, life space mobility, visual attention and task switching, and confidence negotiating the social environment using their scooters.

RESULTS

Mean total WST-Q capacity scores were 83% and performance scores were 25%. WST-Q capacity scores had significant positive correlations with WST-Q performance (r = 0.321) and confidence scores (r = 0.787), WST capacity scores (r = 0.488), and confidence negotiating the social environment (WheelCon) (r = 0.463). WST-Q capacity scores were significantly negatively correlated with Trail Making B scores (r = -0.591) and age (r = -0.531).

CONCLUSIONS

The correlations between WST-Q scores and other variables are similar to those found in other studies among users of scooters and other mobility devices. The gap between capacity and performance scores highlights the needs for additional skills training in this population of novice scooter users.IMPLICATIONS FOR REHABILITATIONIn implementing scooter training for new scooter users, attention should be paid to building community-based skills for navigating both the physical and the social environment.Scooter users' age and their driving capabilities need to be taken into account when developing and delivering the training.

Assessment of driving skills of a mobility scooter using driving operation logs

A mobility scooter is a major assistive technology that replaces human ambulatory functions for people with disabilities. A license is often not required for driving a mobility scooter; therefore, less skilled drivers might create safety concerns. An effective way of reducing these safety risks is by assessing the driving skills of users. The existing assessment measures mostly score the task performance using manual observations. In this study, we have developed a novel assessment system that logs the driving operations by using add-on sensors. This system can monitor the operations of a mobility scooter including the angles of the throttle lever and the steering tiller. The subjects were seven older adults who participated in the driving test involving six tasks; the driver performances were video recorded, and the vehicle operation data were logged. The video analysis showed that two subjects crashed their scooters into objects or made contact with objects during the test course. To extract the characteristic patterns of the operations from the logs, 2D histograms of the operational status durations were investigated for each subject and task. Subsequent analysis of the operation logs identified the two subjects who had crashed their vehicles during the test drive. Our results proved that the driving operation logs could be used complementarily as a simple and low-cost tool for assessing a person's driving skills.

Feasibility of a peer-led, manual wheelchair maintenance skills training programme to improve wheelchair efficiency, and knowledge and confidence about wheelchair maintenance: a pre-post study

BACKGROUND

Wheelchair users typically receive little training about wheelchair maintenance. Therefore, we developed a peer-led, manual wheelchair skills maintenance training programme, with the intention of evaluating its efficacy in a future experimental study.

PURPOSE

The purpose of this feasibility study was to examine how well we were able to implement the training programme and to evaluate the feasibility of conducting a larger scale clinical trial.

SETTING

Spinal cord injury research centre.

PARTICIPANTS

Five mentors and fifteen mentees were recruited to complete this feasibility study.

METHOD

We collected information about recruitment capability and sample characteristics, data collection procedure, acceptability of the training programme, resources required, and participants' responses to the intervention. Participants completed all the items and we had little missing data. Participants did not face any difficulty answering the questionnaires or performing the tests. Therefore, we could conclude data collection was feasible moving forward to perform larger efficacy trials. The acceptability of the wheelchair maintenance programme was more than 90%. There was a statistically significant improvement in wheelchair maintenance knowledge test and total rolling resistance. Confidence of mentees increased significantly after the training. Improvements in the 3-cone test and the 6-min push test results were not significant.

CONCLUSIONS

If recruitment and scheduling challenges can be overcome, our data suggested that it is feasible to conduct a larger experimental study to test the efficacy of the programme.Implications for RehabilitationWheelchair maintenance skills are important to help wheelchair users keep their wheelchairs working safely and efficiently.The findings from this study suggest that a peer-led wheelchair maintenance training programme may improve participants' wheelchair maintenance knowledge and maintenance self-confidence.The study also suggests that a peer-led wheelchair maintenance training programme may decrease the rolling resistance of participants' wheelchairs.A larger clinical trial is needed to demonstrate the efficacy of this intervention authoritatively.

Cross-cultural adaptation of wheelchair skills test (version 4.3) for wheelchair users and caregivers to the Portuguese language (Brazil)

Objective: To perform cross-cultural adaptation of the Wheelchair Skills Test of manual wheelchair users and their caregivers into the Brazilian Portuguese language.Methods: The study was composed of translation, synthesis of translations, back-translation, review by an expert committee and pre-test, when the test was applied in the target population. Included were translators, subject specialists and coordinators to carry out the cross-cultural adaptation process, and manual wheelchair users and their caregivers with at least six months of wheelchair experience for the pre-test.Results: Forty-three people participated in the study, 30 for the pre-test and 13 for the stages that preceded the pre-test. The mean age of manual wheelchair users was 40.2 (±10.7) years and of caregivers was 44.2 (±15.7) years. Of the 47 phrases translated in the first stage, 36 discrepancies were found and resolved. During the analysis by the committee of experts the instrument underwent 13 modifications in order to achieve the best possible equivalence between the original version and the final version and was understandable by the people evaluated. The total pre-test scores of wheelchair users and their caregivers were 66.2 (±24.6) and 88.7 (±14.2), respectively.Conclusions: This instrument was able to evaluate the abilities of wheelchair users and their caregivers in Brazil, as well as being useful for training in rehabilitation programs.Implications for rehabilitationThe need to use wheelchair (WC) properly has made clinicians and rehabilitation professionals more concerned with assessing and training users' abilities with their WC.Cross-cultural adaptation allows for the linguistic modification of the original language of the evaluation tool into a new language and enables the comparison of research results in different countries.Immediate use of the instrument for WC users and caregivers in Brazil, both for evaluation and for training, is necessary and may be a means for rehabilitation professionals to improve their evaluations, their treatments and optimize the skills that aim at independence.

Reliability of the Spanish version of the wheelchair skills test 4.2 for manual wheelchair users with spinal cord injury

Study design: Cross-sectional.Objectives: The majority of people with a spinal cord injury (SCI) are dependent on wheelchair for their mobility. Approximately, 36% of wheelchair users reported that obstacles such as curbs, uneven terrain, flooring surfaces and thresholds were barriers to mobility. Several studies have shown that assessment and training of wheelchair skills leads to improvements in those skills. The purpose of our study was to translate the Wheelchair Skill Test (4.2) and its report form into Spanish and then determine the inter-rater reliability of the WST 4.2 for manual wheelchairs operated by their users.Setting: Rehabilitation Unit, FLENI Institute, Buenos Aires, Argentina.Methods: The translation was performed by a physical therapist with advanced English language skills and specialized in the treatment of SCI subjects. We administrated and video-recorded the WST 4.2 manual Spanish version in 11 SCI subjects. Two physical therapists received specific training for administering the test and scoring the record. The reliability of the total percentage WST score were statistically quantified by intraclass correlation coefficient (ICC).Results: ICC values for Interrater were 0.998 (p < .0001). 17 out of the 32 skills had a 100 percentage of agreement. Percentage of agreement in the three skills that presented less rating agreement was 73%, 81 % and 82 %, respectively.Conclusion: The results show that the Spanish version of WST 4.2 is a reliable assessment tool to evaluate the skills capacity of spinal cord manual wheelchair users.Implications for rehabilitationWheelchair users require a proficient management of various wheelchair skills to achieve maximum independence in daily life. Determining which wheelchair skills should be addressed during the rehabilitation process is of great importance for their correct training. The WST 4.2 is an appropriate assessment tool to determine the functional capacity of wheelchair users.Making available the WST 4.2 in the Spanish language and demonstrating its reliability in this language allows its use in the Spanish-speaking world. A reliable wheelchair skills test is needed in the Spanish language.

Feasibility of a Systematic, Comprehensive, One-to-One Training (SCOOT) program for new scooter users: study protocol for a randomized control trial

Background

Mobility scooters can facilitate community participation among individuals with mobility limitations. However, accidents are a serious concern with scooter use. Scooter training has been recommended to improve safety, but there are currently few validated programs available. Therefore, we developed a Systematic, Comprehensive, One-to-One Training (SCOOT) program for scooter users. We will conduct a study to evaluate the outcomes produced by the provision SCOOT.

Methods

This feasibility study will use a mixed-methods, rater-blinded, randomized control trial, with a two-step wedge design. The study has two arms: an immediate intervention group, which will receive the intervention directly after baseline assessments, and a delayed intervention group, which will receive the intervention after a 6-week period. Forty participants, who will be stratified based on whether or not participants have previously held a driver’s license, will be randomly assigned to each arm. The intervention for this study consists of 6 weeks of one-to-one scooter training by an experienced occupational therapist, who will provide training once or twice per week over the 6 weeks. The primary outcome measure is subjective scooter skills, measured using the Wheelchair Skills Test for scooters. Secondary outcomes include objective scooter skills, confidence, mobility, and satisfaction with selected participation activities. Descriptive measures include cognitive status, functional status, hearing, vision, physical accessibility of the home and community, and visual attention and task switching. Qualitative interviews will be conducted with the first ten willing participants from each group to learn about their scooter use and experiences with SCOOT.

Discussion

The results of this study will inform a larger randomized control trial. If the intervention is proven to be effective in this larger study, it may have important implications for policy and practice.

Trial registration

ClinicalTrials.gov identifier: NCT02696213. Registered on 23 February 2016.

Electronic supplementary material

The online version of this article (doi:10.1186/s13063-017-1963-y) contains supplementary material, which is available to authorized users.