Understanding Wheelchair Use in Older Adults From the National Health and Aging Trends Study.

OBJECTIVE: To identify the trends of wheelchair use and physical characteristics among older people who used wheelchairs relative to those who did not. DESIGN: Cohort and survey. SETTING: General community. PARTICIPANTS: 7026 participants (N=7026) were selected from the 2011 cohort of the National Health and Aging Trends Study (NHATS), which is made up of Medicare beneficiaries over the age of 65. Repeated observations among participants in the 2011 cohort were analyzed in the 4 following rounds: 2013 (N=4454), 2015 (N=3327), 2017 (N=2623), and 2019 (N=2091). Participants were divided into 2 groups: those who used and did not use wheelchairs. INTERVENTIONS: Not applicable. MAIN OUTCOMES MEASURES: Physical characteristics, including pain, strength limitation, balance problems, mobility disability, as well as the frequency of going outside. RESULTS: The number of older adults who use wheelchairs had increased significantly from 4.7 per 100 people in 2011 to 7.1 in 2019 (P<.001). The logistic regression analysis indicated that participants who reported less frequently going out were at least 4.27 times more likely to be wheelchair users than non-wheelchair users (P<.01). Participants who reported health and physical problems were at least 2.48 times more likely to be wheelchair users than non-wheelchair users from 2011 to 2017 (P<.0001). Balance or coordination problems increased (24%-38%) significantly among non-wheelchair users from 2011 to 2019 (all P<.05). CONCLUSIONS: Current wheelchair users reported more physical difficulties and were much less likely to go outside. This lower outdoor mobility could be due to physical difficulties or potential barriers in physical and socio-cultural environments. In addition, older adults who do not use wheelchairs showed increasing physical problems over time (including balance or coordination problems). Clinicians should consider older wheelchair users' health and physical limitations when prescribing wheelchairs.

Best practices associated with residential fire preparedness among individuals who use a wheelchair or scooter full time: A scoping review.

CONTEXT: During the evacuation of a residence during a fire event, individuals must often climb over objects or navigate stairs, which may be challenging or impossible for an individual who uses a wheelchair or scooter for mobility. Consequently, fire preparedness is critical to enhancing this population's safety and well-being. OBJECTIVE: This study examines best practices associated with fire preparedness among individuals who use a wheelchair or scooter to inform and facilitate fire preparedness education. METHODS: A scoping literature review was conducted based on the framework established by Arksey and O'Malley. A total of 386 peer-reviewed articles and sources based on non-academic organizations, including the National Fire Protection Association (NFPA), Federal Emergency Management Agency (FEMA), Society of Fire Protection Engineers, Rehabilitation Engineering and Assistive Technology Society of North America (RESNA), Centers for Disease Control and Prevention (CDC), United Spinal Association, American Red Cross, and United States Fire Administration (USFA) were evaluated, and 14 of the 386 peer-reviewed publications were retained after determining predefined inclusion criteria. RESULTS: Findings emphasize the need to prevent fires from occurring through dedication to safe home practices and the use of early detection systems, and the utilization of easy-to-use or automated fire management equipment, such as a home sprinkler system, was encouraged. The need to develop highly detailed evacuation plans with the use of appropriate equipment is highly emphasized. CONCLUSION: Due to the high-risk nature of the population, increased attention, and awareness of fire preparedness among individuals who use a wheelchair or scooter is critical.

Community Partners' Perspectives on Partnering With an Academic Research Team to Promote Disability-inclusive Fitness Programming.

BACKGROUND: Community-based fitness programs can support public health by providing access to physical activity opportunities for a vulnerable population with significant barriers. Unfortunately, programs specifically designed for people with disabilities (PWD) and staff training to promote inclusion for PWD in general population programs is limited. The current study aimed to review an on-going partnership that had formed to address this need. OBJECTIVES: The purpose of this study was to assess community partners' experiences with a community-academic partnership designed to implement a fitness program for people with multiple sclerosis and also to promote inclusion for PWD in community-based fitness programming. METHODS: Semi-structured interviews were conducted with six community partners who had been engaged in a formal partnership with the academic institution for 2 or more years to understand partners' experiences and perspectives about the partnership. Interviews were audio/video recorded, transcribed verbatim, and analyzed thematically. RESULTS: Participants described their experiences as falling into four main areas. Pre-partnership experiences (or lack thereof) shaped participants views on entering into academic partnerships. Communication and planning for mutual benefit were key to getting the partnership started. Partners identified challenges and factors for success while they were in the thick of partnership activities. Finally, evaluation allowed for assessment and improvement of the partnership itself and its ultimate goals. CONCLUSIONS: Findings suggest that academic-community partnerships can be ideal for promoting inclusion for PWD and highlight insights that can be used in the development of future partnerships.

Beyond the Imodium, a One Health Discussion on Diarrhea and the Impact of Climate Change.

Our ability to tackle the looming human, animal, and global ecosystem health threats arising from the issues of climate change and extreme weather events will require effective and creative cross-disciplinary collaboration. There is a growing national and international interest in equipping the next generation of clinicians and health scientists for success in facing these important challenges by providing interprofessional training opportunities. This paper describes how we assembled an interdisciplinary team of experts to design and deliver a case-based discussion on a cross-species illness outbreak in animals and humans using a One Health framework. The small group, case-based approach highlighted the impact of climate change-driven extreme weather events on human and animal health using a diarrhea outbreak associated with a contaminated community water supply precipitated by extreme flooding. Post-activity survey data indicated that this team-taught learning activity successfully engaged a cross-disciplinary cohort of medical, veterinary, and public health students in the issues of environmental public health threats and helped them understand the importance of an integrative, cross-functional, team-based approach for solving complex problems. The data from this study is being used to plan similar interprofessional, One Health learning activities across the health sciences curriculum in our institution.

Functional balance assessment for predicting future recurrent falls in non-ambulatory individuals with spinal cord injury: a prospective pilot study.

BACKGROUND: Functional assessments easy to administer within the clinic to identify non-ambulatory individuals with spinal cord injury at risk of recurrent falls are needed. PURPOSE: To examine the ability of functional balance and transfer quality to predict recurrent falls. METHODS: This 6-month prospective study examined remote assessments of transfer quality using the Transfer Assessment Instrument and functional sitting balance with the Function in Sitting Test and the Trunk Control Test. Then, participants prospectively monitored their falls for 6-month using fall diaries. Frequency of falls was categorized as infrequent fallers (≤2 falls) and recurrent fallers (>2 falls). A multivariable logistic regression analysis was conducted. A Receiver Operating Characteristic curve was performed to determine the area under the curve, the sensitivity, and the specificity of the model. RESULTS: Eighteen non-ambulatory individuals (mean age = 44 ± 16 years, mean time since injury = 7.8 ± 32.6 years) participated in the study. Poor balance (lower Function in Sitting Test score) was associated with higher odds of future recurrent falls (Odds Ratio = 0.70, 95% CI, 0.48 to 1.00, p = 0.05), area under the receiving operating curve = 0.87, sensitivity = 88%, and specificity = 70%. CONCLUSIONS: A comprehensive sitting balance assessment that includes the static, proactive, and reactive components of balance with the integration of sensorial functions as evaluated within the Function in Sitting Test may be useful for predicting recurrent falls among non-ambulatory individuals with spinal cord injury. Replication of the findings in a larger sample is warranted.

The influence of gender on shoulder kinematics and head-hip technique during non-level transfers in full-time wheelchair users.

BACKGROUND: Non-level transfers are some of the most demanding tasks for manual wheelchair users. Safely performing these transfer tasks may be needed for maintaining long-term upper limb health. This cross-sectional study aimed to examine the influence of gender on the head-hip technique and lead arm kinematics during multi-height transfers in manual wheelchair users. METHODS: Motion analysis was used to obtain lead-arm shoulder kinematics (flexion/extension and abduction/adduction) and trunk flexion during level, uphill, and floor-to-table transfers in full-time manual wheelchair users. FINDINGS: Twelve male (N = 12) and fifteen female (N = 15) manual wheelchair users with a mean age of 23 ± 5 years and no signs of shoulder pain participated in the study. Lead-arm shoulder flexion and abduction increased as vertical displacement requirements increased during the various transfer tasks (p < 0.01). Women displaced greater trunk flexion during level transfers at approaching significant levels (p = 0.07). During uphill transfers, women displayed significantly greater trunk flexion than men (p < 0.05). INTERPRETATION: Manual wheelchair users use unique kinematic requirements when using the head-hip during level and non-level transfers. Women may be at decreased risk of chronic shoulder pain due to a greater use of the head-hip technique during non-level transfers. Nonetheless, more research that integrates kinetics and strength assessments during non-level transfer biomechanical analyses is needed to better understand technical requirements of non-level transfers in manual wheelchair users.

Reliability of home-based remote and self-assessment of transfers using the Transfer Assessment Instrument among wheelchair users with spinal cord injury.

STUDY DESIGN: Cross-sectional study. OBJECTIVE: To evaluate the reliability of home-based remote and self-assessment of transfer quality using the Transfer Assessment Instrument (TAI) among wheelchair users with spinal cord injury (SCI). SETTING: Participant's home environment. METHODS: Eighteen wheelchair users with SCI transferred from their wheelchair to a surface of their choice (bed, sofa, or bench) in their homes. During a live video conference, the transfer was recorded and evaluated live using the TAI (rater 1). Participants completed a self-assessment of their transfer using the TAI- questionnaire (TAI-Q). Two additional raters (raters 2 & 3) completed asynchronous assessments by watching recorded videos. Interrater reliability was assessed using Intraclass Coefficient Correlations (ICC) to compare rater 1 with the average of raters 2 & 3 and TAI-Q. Intrarater reliability was assessed by rater 1 completing another TAI by watching the recorded videos after a 4-week delay. Assessments were compared using paired sample t-tests and level of agreement between TAI scores was evaluated using Bland-Altman plots. RESULTS: Moderate to good interrater and good intrarater reliability were found for the total TAI score with ICCs: 0.57-0.90 and 0.90, respectively. Moderate to good intrarater and interrater reliability were found for all TAI subscores (ICC: 0.60-0.94) except for interrater reliability of flight/landing which was poor (ICC: 0.20). Bland-Altman plots indicate no systematic bias related to the measurement of error. CONCLUSIONS: The TAI is a reliable outcome measure for assessing the wheelchair and body setup phases of home-based transfers remotely and through self-assessment among individuals with SCI.

Characteristics and consequences of falls among people with multiple sclerosis who use wheelchairs or scooters: Differences between injurious and non-injurious falls.

BACKGROUND: Falls are common among people living with multiple sclerosis (MS) who use wheelchairs or scooters. Falls may lead to severe consequences including physical injuries. However, very little is known about the circumstances associated with injurious falls in this population. Therefore, we aimed to explore the differences in fall-related characteristics between injurious and non-injurious falls among people with MS who use wheelchairs or scooters. METHODS: A convenience sample of 48 people with MS (age = 62.0 [13.0] years, gender = 81.3% female, primary mobility aid = power wheelchair) completed a fall-history survey that examined the characteristics and consequences of their most recent fall. Participants also completed standard questionnaires on quality of life, community participation, and fear of falling. RESULTS: Most falls (85.4%) reported by participants occurred inside the house. Twelve (25.0%) participants reported experiencing fall-related injuries such as bruises, cuts, muscle strains, and fractures. People who reported being injured after a fall had a higher proportion of falls that occurred during transfers compared to those who were not injured (n = 10, 83.3% vs n = 17, 47.2%). Most participants (45.8%) did not receive any information from healthcare professionals on how to manage their fall-risk after their fall experience. No differences between injurious and non-injurious fallers in quality of life, community participation, and fear of falling were observed. CONCLUSIONS: This cross-sectional investigation provides compelling evidence that people with MS who use wheelchairs or scooters are at high risk of fall-related injuries. The study findings underscore the importance of increasing health care providers' awareness about the frequency and consequences of falls. Further, it demonstrates the critical need for evidence-based interventions specifically designed to minimize fall-related injuries in this vulnerable population.

Fall detection from a manual wheelchair: preliminary findings based on accelerometers using machine learning techniques.

Automated fall detection devices for individuals who use wheelchairs to minimize the consequences of falls are lacking. This study aimed to develop and train a fall detection algorithm to differentiate falls from wheelchair mobility activities using machine learning techniques. Thirty, healthy, ambulatory, young adults simulated falls from a wheelchair and performed other wheelchair-related mobility activities in a laboratory. Neural Network classifiers were used to train the algorithm developed based on data retrieved from accelerometers mounted at the participant's wrist, chest, and head. Results indicate excellent accuracy to differentiate between falls and wheelchair mobility activities. The sensors mounted at the wrist, chest, and head presented with an accuracy of 100%, 96.9%, and 94.8%, respectively, using data from 258 falls and 220 wheelchair mobility activities. This pilot study indicates that a fall detection algorithm developed in a laboratory setting based on fall accelerometer patterns can accurately differentiate wheelchair-related falls and wheelchair mobility activities. This algorithm should be integrated into a wrist-worn devices and tested among individuals who use a wheelchair in the community.

Measurement Properties of Clinical Instruments for Assessing Manual Wheelchair Mobility in Individuals With Spinal Cord Injury: Systematic Review.

OBJECTIVE: To evaluate the measurement properties of clinical instruments used to assess manual wheelchair mobility in individuals with spinal cord injury (SCI). DATA SOURCES: This systematic review was conducted according to the Consensus-Based Standards for the Selection of Health Measurement Instruments guidance and Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. The search was conducted up to December 2021 on MEDLINE/PubMed, Cochrane Central Register of Controlled Trials, Web of Science, Biblioteca Regional de Medicina, and Cumulative Index to Nursing and Allied Health databases without time restriction. STUDY SELECTION: Peer-reviewed original research articles that examined any clinical wheelchair mobility and/or skill assessment instrument among adults with SCI and reported data on at least one measurement property or described the development procedure were evaluated independently by two reviewers. DATA EXTRACTION: Data were independently extracted according to Consensus-Based Standards for the Selection of Health Measurement Instruments methodology. Measurement property results from each study were independently rated by two reviewers as sufficient, insufficient, indeterminate, or inconsistent. The evidence for each measurement property was rated as high, moderate, low, or very low (Grading of Recommendations, Assessment, Development, and Evaluation). Recommendations for highly-rated instruments were performed. DATA SYNTHESIS: Twenty-nine studies with 21 instruments were identified. The methodological quality of studies ranged from insufficient to sufficient, and the quality of evidence ranged from very low to high. Six instruments reported content validity. Reliability and construct validity were the most studied measurement properties. Structural validity and invariance for cross-cultural measurement were not reported. The highly rated instruments were the Wheelchair Outcome Measure and Wheelchair Skills Test Questionnaire. CONCLUSIONS: Although numerous instruments for assessing wheelchair mobility and/or skills among individuals with SCI were identified, not many measurement properties have been sufficiently established. The Wheelchair Outcome Measure and Wheelchair Skills Test Questionnaire show the current best potential to be recommended for clinical and research use. Further studies are needed to strengthen or change these recommendations.

Frequency and characteristics of falls, fall-related injuries, and fear of falling among wheelchair users with spinal cord injury.

CONTEXT/OBJECTIVE: To investigate the frequency and characteristics of falls, fall-related injuries, and fear of falling (FOF) among non-ambulatory individuals with spinal cord injury (SCI). METHODS: This is a cross-sectional study design that included 59 non-ambulatory individuals with SCI. Participants completed a survey on demographics, SCI characteristics (type of injury, level of injury, and time since injury), FOF, activities curtailment due to FOF, and frequency of falls and fall-related injuries in the past 6 months. Characteristics of the most recent falls and fall-related injuries were also collected. A directed content analysis was used to analyze qualitative data. RESULTS: Overall, 63% of the study participants reported falling at least once, 46.7% reported injuries after falls, and 73% reported FOF during the previous 6 months. Participants commonly reported falling inside of the house (74.6%), during transfers (43.2%), and associated with obstacles on the way (54.5%) or surface conditions (36.4%). Almost half of the participants (42.3%) reported never received education on fall prevention from a healthcare professional. CONCLUSIONS: The results confirm that falls, fall-related injuries, and FOF are a common concern in this population. These findings contribute to the knowledge base for the future development of fall prevention programs specific for non-ambulatory individuals with SCI.

Predictors of participation enfranchisement of wheelchair users with spinal cord injury in the United States.

CONTEXT/OBJECTIVE: To investigate predictors of participation enfranchisement of individuals living with spinal cord injury (SCI) who use a wheelchair full-time. DESIGN: Secondary data analysis of a cross-sectional study. SETTING: Community, United States. PARTICIPANTS: Participants were 59 wheelchair users (median age of 52.5 years, IQR = 21) with chronic SCI (>1 year after injury). INTERVENTIONS: No intervention. MAIN OUTCOME MEASURES: Participation enfranchisement was measured using the enfranchisement scale of the Community Participation Indicators (CPI). Dependent variables included importance of participation (CPI-Importance) and control over participation (CPI-Control) subscales of the CPI. Independent variables included demographics and clinical characteristics (age, sex, time since injury, level of injury), wheelchair skills, mobility level, symptoms of depression, and environmental barriers. Backward multivariable linear regression analyses were carried-out to identify predictors of CPI-Importance and CPI-Control. RESULTS: Five predictors including mobility level, wheelchair skills, sex, level of injury, and symptoms of depression explained 57% (F = 14; P < 0.01) of the variance in CPI-Importance. Three predictors including mobility level, symptoms of depression, and environmental barriers explained 60% (F = 27; P < 0.01) of the variance in CPI-Control. CONCLUSION: This study provides evidence of potential modifiable factors such as mobility, wheelchair skills, environmental barriers, and symptoms of depression that can influence importance of participation and control over participation of wheelchair users with SCI. The models presented in this study can serve as a conceptual framework to design effective interventions to improve participation enfranchisement of wheelchair users with SCI.

Influence of Transfer Quality and Wheelchair Type on Fear of Falling Among Full-Time Wheelchair Users.

OBJECTIVE: To evaluate the influence of transfer quality and demographics on fear of falling (FOF) among full-time wheelchair users. DESIGN: Secondary data analysis. SETTING: University research laboratory and community, United States. PARTICIPANTS: Ninety-six individuals (N=96) living with multiple sclerosis or spinal cord injury who use a manual or power scooter full time with median age of 54.00 years (interquartile range, 29.00 years), and median duration of health condition of 19.50 years (interquartile range, 23.00 years) were included. Fifty-two participants (54%) were manual wheelchair users. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Demographics information included age, sex, duration of health condition, height, weight, body mass index, and wheelchair type. To assess transfer quality, the Transfer Assessment Instrument versions 3.0 and 4.0 were used. The Spinal Cord Injury Falls Concern Scale was used to quantify FOF. Stepwise linear regression analysis was conducted to examine factors influencing FOF. RESULTS: Participant's age, sex, duration of health condition, wheelchair type, and transfer quality were associated with FOF. The regression analysis indicated transfer quality (ß=-0.25, P<.01) and wheelchair type (manual wheelchair, ß=- 0.32, P<.01) were significant predictors of FOF, R2=20% (F=11.19; P<.01). CONCLUSIONS: Compared with manual wheelchair users, power wheelchair/scooter users with poor transfer quality reported higher levels of FOF. Clinicians and researchers working with wheelchair users should emphasize quality of transfers and consider the type of wheelchair while developing interventions to reduce FOF in this population. Further longitudinal prospective studies on modifiable factors associated with FOF among full-time wheelchair users are warranted.

Pilot Study of a Fall Prevention and Management Intervention Program for People With Multiple Sclerosis Who Use a Wheelchair or Scooter Full-Time.

Objective: To examine the efficacy of a fall prevention/management intervention among persons with multiple sclerosis (PwMS) who use a wheelchair (WC) or scooter full-time. Design: Pre-post/follow-up trial. Setting: Community and research laboratory. Participants: Twenty-one PwMS who used a WC or scooter full-time, self-reported at least 1 fall/12 months, and could transfer independently or with minimal/moderate assistance (N=21). Intervention: Six-week, group and community-based fall prevention and management intervention. The intervention included six 2-hour in-person weekly sessions led by a physical or occupational therapist featuring interactive group discussions, skill practice, and action planning opportunities. Main Outcome Measures: Fall frequency tracked 12 weeks pre- and 24 weeks post intervention. Outcomes were assessed pre- and post intervention and 12 weeks post intervention. Measures included surveys to examine fear of falling (FOF), fall prevention/management, quality of life, community participation, and assessment of functional mobility skills. Semistructured interviews were administered post intervention to ascertain overall experiences with the program and effect on daily life. A Friedman test with signed-rank post hoc analysis was run to determine differences across the 3 study visits. Results: After the intervention, fall incidence did not significantly change, but fall management strategies (P=.01-0.05), importance of community participation (P=.01), and transfer quality (P=.02) significantly improved. Moderate effect sizes were noted among concerns about falling, activity curtailment because of to FOF, and WC skills. Qualitative results indicate that participants found the intervention beneficial and applied intervention content in their daily lives. Conclusions: This study is the first to describe the effect of a multicomponent fall prevention/management intervention designed specifically for PwMS who use a WC or scooter full-time. Results indicate the program has potential to reduce fall risk; however, further testing is needed to fully examine the effect of the program.

A process evaluation of an on-line fall prevention and management program for individuals who use wheelchairs or scooters living with multiple sclerosis.

Background: Falls and resulting injury are a significant concern for individuals living with multiple sclerosis (MS) that use a wheelchair and/or scooter to support mobility. Effective fall prevention efforts are vital to support the health, wellbeing, and participation for these individuals. Aims: This study reports the findings from the process evaluation conducted in association with a pilot study evaluating the efficacy of Individualized Reduction of FaLLs-Online (iROLL-O), an online, group fall prevention, and management program specifically designed for community-based people living with multiple sclerosis (pwMS) who are full-time wheelchair or scooter users. Methods: A mixed-methods process evaluation was conducted, with specific attention to the impact of online delivery on intervention implementation, participant satisfaction, and mechanisms of change (MOC). Multiple data sources were utilized, including post-session and post-intervention participant and trainer feedback forms and participant qualitative interview data. Descriptive analysis was conducted using Microsoft Excel. Close-ended questions were analyzed by examining five-point Likert scale responses. Qualitative interview data was explored using thematic analysis. Results: Twelve participants and three trainers (one occupational therapist and two physical therapists) contributed to the study. Online delivery did not compromise session fidelity, which averaged 95%. No significant adaptations to the intervention were made during delivery. Participant satisfaction was high at 4.6/5.0. Post-course Trainer Feedback Forms indicate trainer satisfaction with the group dynamic, ability to address unique group needs, and program content. Reach improved with online delivery as transportation barriers were removed and recruitment from a broader geographic area was enabled. Three themes reflecting key MOC emerged from the analysis: group context, motivation for participant engagement, and the multifaceted nature of the program. The COVID-19 pandemic was identified as a contextual factor impacting community participation. Both participants and trainers identified the group dynamic as a strength. The trainers valued the program's flexibility in allowing them to address individual and/or group-specific fall prevention needs. Conclusion: Feedback from key stakeholders was essential to a meaningful process evaluation. Online delivery supported program implementation, including reach, and resulted in high levels of satisfaction among participants and trainers. Future iterations should aim to uphold the positive group context, recruit, and train skilled interventionists who are licensed as occupational or physical therapists and continue to provide the program's diverse approach to fall prevention and management.

The differences in demographics, fear of falling, transfer quality and participation enfranchisement between manual and power wheelchair users with multiple sclerosis and spinal cord injury.

PURPOSE: To examine the differences in demographics, fear of falling (FOF), transfer quality and participation enfranchisement between manual and power wheelchair users with multiple sclerosis (MS) and spinal cord injury (SCI). MATERIALS AND METHODS: Secondary data analysis including 126 manual or power wheelchair users with MS and SCI (median age, 53.00 years, IQR = 24.00). Demographic information including age, gender, height, weight and disability duration was collected. Body mass index (BMI) was calculated for all participants. Participation enfranchisement was examined using both subscales (Importance and Control) of the enfranchisement scale of the Community Participation Indicator (CPI). FOF was assessed using the Spinal Cord Injury-Falls Concern Scale (SCI-FCS) and transfer quality was assessed using the Transfer Assessment Instrument (TAI) 3.0 and 4.0. Mann-Whitney's U-tests or independent samples t-tests and chi-square were used to analyse the differences between continuous variables and categorical variables, respectively. RESULTS: Fifty-seven percent of participants were manual wheelchair users. There were significant differences in most demographic information except for weight and disability duration. Significant differences were also found for BMI (t = 1.06, p = 0.04), CPI-Importance (U = 1282.50, p < 0.01), CPI-Control (U = 1165.50, p < 0.01) and SCI-FCS (t = 4.08, p < 0.01). Manual wheelchair users outperformed power wheelchair users in all outcomes analysed except the TAI (p = 0.18). CONCLUSIONS: Power wheelchairs users presented with a higher BMI, reported lower participation enfranchisement, and reported higher levels of FOF compared to manual wheelchair users. The findings may help clinicians to develop targeted rehabilitation goals specific for power and manual wheelchair users with MS and SCI.

Significant functional differences exist between manual and power wheelchair users.Compared to manual wheelchair users, power wheelchair users had higher body mass index, reported lower community participation and reported higher levels of fear of falling.These findings can help clinicians to develop targeted interventions specific for power and manual wheelchair users.

Frailty among people with multiple sclerosis who are wheelchair users.

BACKGROUND: Frailty is a biological syndrome arising from cumulative declines across multiple physiologic systems. Although recent reports have described elevated frailty levels in people with multiple sclerosis (MS) with minimal to moderate disability, very little is known about frailty in individuals with severe disability. The objective of the current investigation was to evaluate frailty through the deficit accumulation model and to explore the relationship of frailty with MS clinical subtypes, disease duration and fall-history in wheelchair users living with MS. MATERIALS AND METHODS: Standard validated procedures were used to calculate a frailty index in 45 wheelchair and scooter users living with MS (median age = 60.0[16.0] years, 82.2% female, patient determined disease steps score = 7.0). Information on demographics, MS clinical subtypes, disease duration, and six-month fall-history were collected as part of a standardized medical survey. RESULTS: The mean frailty index score was 0.54 (standard deviation = 0.13). Overall, 91.1% and 8.9% of participants met objective diagnostic criteria for severe and moderate frailty, respectively. A one-way ANOVA revealed no significant differences (F = 0.054, p = 0.948) in the frailty index among participants with relapsing-remitting MS, primary progressive, and secondary progressive MS. No relationship between frailty and disease duration (r = -0.058, p = 0.706) was found. A univariable negative binomial regression analysis revealed a significant association between frailty index scores and the number of falls experienced in the previous six months (IRR = 1.75, 95% CI [1.06-2.91], p = 0.030). CONCLUSION: The current study suggests that individuals with MS with advanced disability also live with coexisting frailty and that the frailty index may be a valuable tool in evaluating fall-risk in wheelchair users living with MS. The significant overlap observed between severe disability and severe frailty highlights the emerging need to untangle this bi-directional relationship to identify appropriate therapeutic pathways in the MS population living with advanced disability.

Risk Factors Associated With Falls and Fall-Related Injuries Among Wheelchair Users With Spinal Cord Injury.

Objective: To identify risk factors for falls and fall-related injuries for wheelchair users with spinal cord injury (SCI). Design: Cross-sectional study. Setting: Community setting. Participants: Fifty-nine community dwelling wheelchair users (N=59), 47.5% male, median age of 52.5 years (IQR, 21 years) with chronic SCI, median time since injury of 16.6 years (IQR, 27.3 years). Interventions: No intervention. Main Outcome Measures: Outcomes were incidence of falls and fall-related injuries. Participants reported on falls and fall-related injuries experienced in the previous 6 months. Independent variables were self-reported and performance-based measures. Self-reported measures included demographics, characteristics of SCI, fear of falling, psychological measures, functional independence, wheelchair skills, environmental barriers, quality of life, and community participation. Performance-based measures included transfer quality and sitting balance assessments. Logistic regression analyses were conducted to identify factors influencing falls and fall-related injuries. Results: In total, 152 falls and 30 fall-related injuries were reported from a total of 37 fallers. After logistic regression analysis, the model with the greatest levels of clinical utility and discriminative ability for falls (sensitivity 81%; specificity 55%; area under the receiving operating characteristic curve [AUC] statistics=0.73; 95% CI, 0.60-0.86) included the variables of shorter time since SCI, high mobility level, and having received education on fall prevention. The model for fall-related injuries (sensitivity 79%; specificity 75%; AUC statistics=0.77; 95% CI, 0.59-0.96) included the variables of older male individual, lower physical health score, and having received education on fall prevention. Conclusions: The regression models presented may be used to identify wheelchair users with SCI at greater risk of falls and fall-related injuries. The findings may help to refer those in need to tailored fall and fall-related injury prevention programs. The findings presented in this study were based on a relatively small sample convenience; therefore, further prospective studies with a larger sample size are warranted.

Prediction of future falls among full-time wheelchair and scooter users with multiple sclerosis: A prospective study.

BACKGROUND: Seventy-five percent (75%) of full-time wheelchair or scooter users with multiple sclerosis (MS) experience at least one fall in a period of 6 months. Falls are detrimental for the independence, quality of life, and community participation. No previous prospective study has evaluated fall risk factors in this segment of MS community. OBJECTIVE: To develop a multivariable falls risk prediction model for people with MS (PwMS) who use a wheelchair or scooter full-time. METHODS: This prospective cohort study is a secondary data analysis that recruited PwMS from the community across the US. Forty-eight adults with MS who use a wheelchair or scooter as their main form of mobility were included. Dependent variable was fall incidence over 3-month recorded through diaries. Dependent variable was categorized as fallers (≥ 1 fall) and non-fallers (0 fall). Predictors were demographics, history of falls in the past 6 months, measures of fear of falling, Spinal Cord Injury- Falls Concern Scale, California Verbal Learning Test II, and Multiple Sclerosis Quality of Life- mental health. Multivariable logistic regression analyses were conducted to identity predictors of future falls. RESULTS: In total, 63 falls (range 0 - 8) were reported over the 3-month period from a total of 26 fallers (54%). Multivariate logistic regression analyses indicated that the risk factor with the best predictive ability of future falls included history of falls in the past 6 months (sensitivity 77%, specificity 54%, and area under the receiving operating curve statistic = 0.76, 95% CI 0.62 to 0.89). CONCLUSION: Findings highlight the importance of asking full-time wheelchair and scooter users with MS if they have fallen in the past 6 months to quickly identify those who are at increased fall risk and in need of follow up assessment and intervention to identify and address modifiable risk factors. More attention to fall risks among full-time wheelchair or scooter users with MS is suggested to increase the understanding among clinicians and researchers of modifiable risk factors.