scholarly journals User-centred assistive SystEm for arm Functions in neUromuscuLar subjects (USEFUL): a randomized controlled study

Author(s):  
Valeria Longatelli ◽  
Alberto Antonietti ◽  
Emilia Biffi ◽  
Eleonora Diella ◽  
Maria Grazia D’Angelo ◽  
...  

Abstract Background Upper limb assistive devices can compensate for muscular weakness and empower the user in the execution of daily activities. Multiple devices have been recently proposed but there is still a lack in the scientific comparison of their efficacy. Methods We conducted a cross-over multi-centric randomized controlled trial to assess the functional improvement at the upper limb level of two arms supports on 36 patients with muscular dystrophy. Participants tested a passive device (i.e., Wrex by Jaeco) and a semi-active solution for gravity compensation (i.e., Armon Ayura). We evaluated devices’ effectiveness with an externally-assessed scale (i.e., Performance of the Upper Limb-PUL-module), a self-perceived scale (i.e., Abilhand questionnaire), and a usability scale (i.e., System Usability Scale). Friedman’s test was used to assess significant functional gain for PUL module and Abilhand questionnaire. Moreover, PUL changes were compared by means of the Friedman’s test. Results Most of the patients improved upper limb function with the use of arm supports (median PUL scores increase of 1–3 points). However, the effectiveness of each device was related to the level of residual ability of the end-user. Slightly impaired patients maintained the same independence without and with assistive devices, even if they reported reduced muscular fatigue for both devices. Moderately impaired patients enhanced their arm functionality with both devices, and they obtained higher improvements with the semi-active one (median PUL scores increase of 9 points). Finally, severely impaired subjects benefited only from the semi-active device (median PUL scores increase of 12 points). Inadequate strength was recognized as a barrier to passive devices. The usability, measured by the System Usability Scale, was evaluated by end-users “good” (70/100 points) for the passive, and “excellent” (80/100 points) for the semi-active device. Conclusions This study demonstrated that assistive devices can improve the quality of life of people suffering from muscular dystrophy. The use of passive devices, despite being low cost and easy to use, shows limitations in the efficacy of the assistance to daily tasks, limiting the assistance to a predefined horizontal plane. The addition of one active degree of freedom improves efficacy and usability especially for medium to severe patients. Further investigations are needed to increase the evidence on the effect of arm supports on quality of life and diseases’ progression in subjects with degenerative disorders. Trial registration clinicaltrials.gov, NCT03127241, Registered 25th April 2017. The clinical trial was also registered as a post-market study at the Italian Ministry of Health.

10.2196/25604 ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. e25604 ◽  
Author(s):  
Katherine Hsieh ◽  
Jason Fanning ◽  
Mikaela Frechette ◽  
Jacob Sosnoff

Background Multiple sclerosis (MS) is a chronic, neurodegenerative disease that causes a range of motor, sensory, and cognitive symptoms. Due to these symptoms, people with MS are at a high risk for falls, fall-related injuries, and reductions in quality of life. There is no cure for MS, and managing symptoms and disease progression is important to maintain a high quality of life. Mobile health (mHealth) apps are commonly used by people with MS to help manage their health. However, there are limited health apps for people with MS designed to evaluate fall risk. A fall risk app can increase access to fall risk assessments and improve self-management. When designing mHealth apps, a user-centered approach is critical for improving use and adoption. Objective The purpose of this study is to undergo a user-centered approach to test and refine the usability of the app through an iterative design process. Methods The fall risk app Steady-MS is an extension of Steady, a fall risk app for older adults. Steady-MS consists of 2 components: a 25-item questionnaire about demographics and MS symptoms and 5 standing balance tasks. Data from the questionnaire and balance tasks were inputted into an algorithm to compute a fall risk score. Two iterations of semistructured interviews (n=5 participants per iteration) were performed to evaluate usability. People with MS used Steady-MS on a smartphone, thinking out loud. Interviews were recorded, transcribed, and developed into codes and themes. People with MS also completed the System Usability Scale. Results A total of 3 themes were identified: intuitive navigation, efficiency of use, and perceived value. Overall, the participants found Steady-MS efficient to use and useful to learn their fall risk score. There were challenges related to cognitive overload during the balance tasks. Modifications were made, and after the second iteration, people with MS reported that the app was intuitive and efficient. Average System Usability Scale scores were 95.5 in both iterations, representing excellent usability. Conclusions Steady-MS is the first mHealth app for people with MS to assess their overall risk of falling and is usable by a subset of people with MS. People with MS found Steady-MS to be usable and useful for understanding their risk of falling. When developing future mHealth apps for people with MS, it is important to prevent cognitive overload through simple and clear instructions and present scores that are understood and interpreted correctly through visuals and text. These findings underscore the importance of user-centered design and provide a foundation for the future development of tools to assess and prevent scalable falls for people with MS. Future steps include understanding the validity of the fall risk algorithm and evaluating the clinical utility of the app.


2019 ◽  
Vol 33 (9) ◽  
pp. 1431-1444 ◽  
Author(s):  
Tove Lindhardt ◽  
Susan Mai Loevgreen ◽  
Brigitte Bang ◽  
Catja Bigum ◽  
Tobias W Klausen

Objective: The aim of this study was to test and compare the effect of (1) a systematic discharge assessment with targeted advice and (2) a motivational interview followed by a home visit. Design: This was a three-armed randomized controlled study. Setting: This study was conducted in the Medical department in a university hospital. Subjects: Patients ⩾65 years of age with health problems at discharge participated in the study. Interventions: Group A ( n = 117): patients were informed of health problems and self-care interventions; Group B ( n = 116): a motivational conversation targeting activities of daily living with a home care nurse and a home visit. Main measures: The main measures of this study were readmissions, handgrip strength, chair-to-stand test, health-related quality of life, depression signs, mortality, and call on municipality services. Results: Risk of readmission was reduced for intervention groups by 30% (A; P = 0.26) and 22 % (B; P = 0.46). Mean number of days to first readmission was 49.5 (±51.0) days for the control group ( n = 116) and 57.9 (±53.6) and 67.2 (±58.1) days for the intervention groups A ( P  = 0.43) and B ( P  = 0.10), respectively. Mean loss of handgrip strength was 10.6 (±16.6) kg for men in the control group and 7 (±19.2) and 1.4 (±17.1) kg for the intervention groups A ( P  = 0.38) and B ( P  = 0.01), respectively. Health-related quality of life improved with 0.3 (±23.7) points in the control group and 7.4 (±24.4) and 3.2 (±22.3) points in the intervention groups A ( P = 0.04) and B ( P  = 0.37), respectively. In total, 17 (16.3%) in the control group were provided with assistive devices after three months and 8 (7.3%) and 19 (17.6%) in the intervention groups A ( P = 0.04) and B ( P  = 0.81), respectively. Conclusion: The interventions reduced the risk of readmission and improved handgrip strength, quality of life, and use of assistive devices.


Author(s):  
Mina Park ◽  
Myoung-Hwan Ko ◽  
Sang-Wook Oh ◽  
Ji-Yeong Lee ◽  
Yeajin Ham ◽  
...  

Abstract Background Virtual reality (VR)-based rehabilitation is considered a beneficial therapeutic option for stroke rehabilitation. This pilot study assessed the clinical feasibility of a newly developed VR-based planar motion exercise apparatus (Rapael Smart Board™ [SB]; Neofect Inc., Yong-in, Korea) for the upper extremities as an intervention and assessment tool. Methods This single-blinded, randomized, controlled trial included 26 stroke survivors. Patients were randomized to the intervention group (SB group) or control (CON) group. During one session, patients in the SB group completed 30 min of intervention using the SB and an additional 30 min of standard occupational therapy; however, those in the CON group completed the same amount of conventional occupational therapy. The primary outcome was the change in the Fugl–Meyer assessment (FMA) score, and the secondary outcomes were changes in the Wolf motor function test (WMFT) score, active range of motion (AROM) of the proximal upper extremities, modified Barthel index (MBI), and Stroke Impact Scale (SIS) score. A within-group analysis was performed using the Wilcoxon signed-rank test, and a between-group analysis was performed using a repeated measures analysis of covariance. Additionally, correlations between SB assessment data and clinical scale scores were analyzed by repeated measures correlation. Assessments were performed three times (baseline, immediately after intervention, and 1 month after intervention). Results All functional outcome measures (FMA, WMFT, and MBI) showed significant improvements (p < 0.05) in the SB and CON groups. AROM showed greater improvements in the SB group, especially regarding shoulder abduction and internal rotation. There was a significant effect of time × group interactions for the SIS overall score (p = 0.038). Some parameters of the SB assessment, such as the explored area ratio, mean reaching distance, and smoothness, were significantly associated with clinical upper limb functional measurements with moderate correlation coefficients. Conclusions The SB was available for improving upper limb function and health-related quality of life and useful for assessing upper limb ability in stroke survivors. Trial registration The study was registered with the clinical research information service (CRIS) (KCT0003783, registered 15 April 2019; retrospectively registered).


2020 ◽  
pp. 174749302093719
Author(s):  
I Aprile ◽  
M Germanotta ◽  
A Cruciani ◽  
C Pecchioli ◽  
S Loreti ◽  
...  

Background and aims Poststroke shoulder pain is a common complication. We aimed to investigate the prevalence of poststroke shoulder pain, with attention to the neuropathic component, and the relationship between poststroke shoulder pain and upper limb improvement in motor function, strength, disability, and quality of life after upper limb rehabilitation. Methods This is a secondary analysis of a multicenter randomized controlled trial to compare upper limb conventional or robotic rehabilitation on 224 patients enrolled in eight rehabilitation centers. We assessed poststroke shoulder pain (using the Numerical Rating Scale and the Douleur Neuropathique 4), and upper limb motor function, strength, disability, and quality of life at baseline (T0), after 30 rehabilitation sessions (T1), and three months after the end of rehabilitation (T2). Results A moderate/severe poststroke shoulder pain was reported by 28.9% of patients, while 19.6% of them showed a neuropathic component. At T0, the intensity of pain was higher in women and in patients with neglect syndrome, positively correlated with the time since stroke and disability and negatively correlated with motor function, strength, and the physical aspects of the quality of life. Moderate/severe pain and neuropathic component significantly reduced after both treatments and this reduction was maintained at T2. Finally, the intensity of pain at baseline was negatively correlated with the improvement of upper limb motor function. Conclusions Poststroke shoulder pain negatively impact on motor performance, strength, disability, and physical aspects of the quality of life as well as on upper limb motor recovery; however, it can be reduced after a robotic or a conventional rehabilitation. Therefore, we suggest considering poststroke shoulder pain when planning the rehabilitation intervention.


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