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1.
Disabil Rehabil Assist Technol ; 18(8): 1500-1507, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-35196472

RESUMO

PURPOSE: There are no manually propelled wheelchairs on the market that are mobile in both seated and standing positions. In response to this product gap, our group formerly designed a mobile manual standing wheelchair (MMSW) and gathered stakeholder feedback. The purpose of this study was to refine the MMSW based on feedback, including weight and width reduction, and evaluate its performance. MATERIALS AND METHODS: The MMSW was subjected to ANSI/RESNA stability testing, and three male participants completed a subset of the wheelchair skills test, including a 100-m roll test in the MMSW (seated and standing) and in their ultralight wheelchair. RESULTS: The MMSW met ANSI/RESNA stability safety standards. During the 100-m roll test, participants reached speeds with the MMSW in both the standing and sitting postures similar or greater than those typical of moving in the home environment (1.11 m/s seated; 0.79 m/s standing). Mobility speeds in the MMSW in the standing position were about three times faster than average walking speeds in exoskeletons (0.26 m/s exoskeletons). With the addition of chain drive bracing to the MMSW, one user was able to reach speeds in the standing position similar to average neurotypical walking speeds indicating the possibility for wheelchair users to be able to move in pace with family and friends. CONCLUSION: All participants expressed interest in the MMSW to facilitate improved quality of life. Further work is needed to test the utility of the MMSW in home and community settings, and its potential effects on standing time and health outcomes.Implications for rehabilitationManual standing wheelchairs with standing mobility may increase functional utility and length of standing time for manual wheelchair usersIncreased standing time may lead to several health benefits for manual wheelchair users.


Assuntos
Posição Ortostática , Cadeiras de Rodas , Humanos , Masculino , Qualidade de Vida , Desenho de Equipamento , Braquetes
2.
J Spinal Cord Med ; 46(1): 146-153, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-34726573

RESUMO

OBJECTIVE: To describe how using a supine arm cycle ergometer can safely reduce deconditioning experienced by patients with spinal cord injury or disorder (SCI/D) during their four to six weeks of complete bed rest after surgery to close a stage 4 pressure injury. DESIGN: This pilot project used a newly designed arm cycle ergometer (known as the M-PACE) that extends over the bed, allowing a patient to lie completely supine while exercising. SETTING: The M-PACE was designed and built at the Minneapolis Veterans Affairs Health Care System (MVAHCS) and pilot tested at the MVAHCS SCI/D Center. PARTICIPANTS: Patients with SCI/D, recovering from flap surgery and deemed appropriate to use the arm cycle ergometer were enrolled in the pilot study (n = 47). OUTCOME MEASURES: A pre-post six-minute arm test (6MAT), a proxy for conditioning, was conducted on a subset (n = 15) of participants before and after the supine cycling exercise training program. Participants' rating of perceived exertion (RPE) scores were collected at cessation of each 6MAT. Participants gave feedback on their perception of using the M-PACE. RESULTS/CONCLUSIONS: The 6MAT RPE was significantly reduced after training with the M-PACE while on bed rest (P = 0.003). Also, significantly more rotations were performed after completing the training program (P = 0.02). Further, study participants who accessed the M-PACE found using it helped offset the tedium of laying supine during flap surgery recovery. The differences in the 6MAT pre- to post measures indicate the M-PACE should be further studied for offsetting the normal deconditioning that occurs with extended bedrest.


Assuntos
Traumatismos da Medula Espinal , Humanos , Traumatismos da Medula Espinal/cirurgia , Braço , Projetos Piloto , Exercício Físico , Teste de Esforço , Consumo de Oxigênio
3.
Disabil Rehabil Assist Technol ; 17(4): 449-452, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-32620066

RESUMO

OBJECTIVE: To determine whether bacterial contamination of rider's hands is less with a novel ergonomic wheelchair (EW) than a standard wheelchair (SW). EXPERIMENTAL DESIGN: After wheelchair hand rims were disinfected, volunteers wearing nitrile gloves propelled each wheelchair through a standardised "run" in hospital. Post-run cultures were obtained from riders' gloved hands. Bacterial hand counts were compared between runs matched by rider (same rider, different chairs) or time (different riders in each chair, running concurrently), and overall. SETTING: Minneapolis Veterans Affairs Health Care System (MVAHCS), a large tertiary care facility. PARTICIPANTS: Eleven employee volunteers. INTERVENTION: EW, as compared with SW. With SW, co-location of hand rims and tyres potentially exposes the user's hands to tyres, which risks contaminating the user's hands with ground-source bacteria. Our novel ergonomic wheelchair (EW) separates drive wheel and hand rims, potentially reducing hand contamination. MAIN OUTCOME MEASURE: Bacterial hand counts. RESULTS: Post-run bacterial hand counts were over 10-fold lower with the EW than the SW. This was true (i) when the same rider tested both chairs sequentially (n = 8 pairs) (median counts, 40 vs. 1030; p = 0.008), (ii) when different riders tested the two chairs concurrently (n = 9 pairs) (median counts, 40 vs. 660; p = 0.004), and (iii) overall (median counts, 40 [n = 9 runs] vs. 550 [n = 10 runs]; p < 0.001). CONCLUSION: Separation of wheelchair hand rims from tyres significantly reduces bacterial hand contamination. Reduced hand contamination could decrease bacterial infections and dissemination of resistant bacteria, warranting further study.Implications for rehabilitationThe novel design of the ergonomic wheelchair, removing the push rim from proximity to the wheelchair tyre, keeps the hands of wheelchair users cleaner.The re-design of the standard manual wheelchair was implemented initially to improve shoulder ergonomics during manual wheelchair propulsion and has the added benefit of reduction in the transfer of bacteria from floors to hands for manual wheelchair users.Since the ergonomic wheelchair has the potential to decrease rates of bacterial infection in manual wheelchair users, further testing is warranted.


Assuntos
Cadeiras de Rodas , Bactérias , Fenômenos Biomecânicos , Ergonomia , Mãos , Humanos , Extremidade Superior
4.
Assist Technol ; 34(4): 444-453, 2022 07 04.
Artigo em Inglês | MEDLINE | ID: mdl-33395558

RESUMO

Pressure injuries for individuals with spinal cord injuries (SCI) are correlated with mortality and are a leading cause for rehospitalizations. The Assisted Weight Shift (AW-Shift©) is a mobile pressure mapping application designed to provide users with a live map view and reminders to perform weight shifts. Novel visualization techniques were used to understand daily distributions of user interaction wit h AW-Shift©. The date and time of system interactions were recorded for six participants with SCI over 7 days (five males/one female, five manual users/one power user, 55.3 ± 17.3 years old, 10.6 ± 6.5 years since injury). Circular frequency plots were created to visualize the time and frequency participants brought the app to the foreground of their phone and received alerts and reminders to complete weight shifts. While some participants used the system regularly throughout the day, others primarily used it before 8am; highlighting the system's importance for regular spot checks and morning wheelchair setup. Participant adherence to weight shift reminders was low suggesting the live pressure map may be more useful. Circular frequency plots can be used by clinicians to more easily review large amounts of patient data. Future work will investigate raw pressure mat data and create a closed-loop weight shift detection algorithm.


Assuntos
Aplicativos Móveis , Úlcera por Pressão , Cadeiras de Rodas , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Traumatismos da Medula Espinal
5.
J Spinal Cord Med ; 45(4): 585-594, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-33705266

RESUMO

CONTEXT/OBJECTIVE: There are no wheelchair products designed to allow users to dynamically control trunk posture to both significantly improve functional reach and provide pressure relief during forward lean. This pilot study sought to (1) gather stakeholder desires regarding necessary features for a trunk control system and (2) subsequently develop and pilot test a first-generation trunk control prototype. DESIGN: Multi-staged mixed methods study design. SETTING: Minneapolis VA Health Care System, Minneapolis, MN. PARTICIPANTS: Eight people with spinal cord injuries were recruited to participate in a focus group. Five participants returned to discuss, rate, and select a design concepts for prototype development. Two participants returned to test the first-generation trunk control prototype. INTERVENTIONS: The focus group members selected a trunk control device design that uses backpack straps with a single cable as the most desired option. Our design team then manufactured the first-generation prototype at the Minneapolis VA. OUTCOME MEASURES: Bimanual workspace capabilities (n = 1) and pressure map relief changes (n = 2) during supported forward lean were measured. Both participants also provided feedback on the trunk control devices usability. RESULTS: Bimanual workspace (for Participant 1) was increased by 311% in the sagittal plane with use of the trunk control device as compared to without. Pressure relief during a forward lean was increased with an overall dispersion index reduction of 87.6% and 27.7% for Participant 1 and Participant 2 respectfully. CONCLUSION: This pilot study successfully elicited desired features for a trunk control device from stakeholders and successfully developed and tested a first-generation trunk control prototype.


Assuntos
Traumatismos da Medula Espinal , Cadeiras de Rodas , Desenho de Equipamento , Humanos , Projetos Piloto , Postura , Design Centrado no Usuário
6.
J Spinal Cord Med ; 42(6): 685-694, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-30702395

RESUMO

Objective: This paper reports the iterative redesign, feasibility and usability of the Comprehensive Mobile Assessment of Pressure (CMAP) system's mobile app used by Veterans with SCI.Design: This three-year, multi-staged study used a mixed-methods approach.Setting: Minneapolis VA Health Care System, Minneapolis, Minnesota.Participants: Veterans with spinal cord injury (N = 18).Interventions: Veterans with spinal cord injury engaged in iterative focus groups and personal interviews, sharing their needs and desires for the CMAP app redesign. App developers used these data for the redesign. The redesigned CMAP app was tested for six-weeks in users' homes.Outcome Measures: Quantitative (surveys) and qualitative (interviews) methods measured feasibility for self-management of seating pressure. Qualitative data were audio recorded, transcribed, anonymized, and coded. Survey data were analyzed using summary statistics.Results: After the CMAP system's redesign, the in-home use interview found: (1) any tool that can assist in prevention and monitoring of skin ulcers is important; (2) the desired key features are present in the app; (3) the main barrier to CMAP use was inconsistent functionality; (4) when functioning as expected, the live pressure map was the central feature, with reminders to weight shift also of high importance. The survey found: power wheelchair users tended to score closer than manual wheelchair users to the positive response end ranges on two separate surveys.Conclusions: Overall both the power and manual wheelchair users reported that they wanted to use the system, felt confident using the system, and that the functions of the system were well integrated.


Assuntos
Aplicativos Móveis , Satisfação do Paciente , Úlcera por Pressão/prevenção & controle , Autogestão , Postura Sentada , Design de Software , Traumatismos da Medula Espinal/complicações , Cadeiras de Rodas , Idoso , Estudos de Viabilidade , Grupos Focais , Humanos , Masculino , Pessoa de Meia-Idade , Úlcera por Pressão/etiologia , Pesquisa Qualitativa , Veteranos
7.
J Tissue Viability ; 27(3): 181-187, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-30008299

RESUMO

STUDY PURPOSE: The purpose of this pilot study was to assess microclimate characteristics of two versions of a strap-based wheelchair seating system (perforated and solid straps) and to conduct preliminary microclimate comparisons of subjects' current wheelchair seating systems. MATERIALS AND METHODS: In this pilot study, the microclimate properties of two variations (solid and perforated) of a strap-based seating system were compared with two commonly used seating systems. Six subjects sat on three different seating systems each for 100-min test periods, while temperature and relative humidity were measured with a single sensor adjacent to the skin-seat interface. Additionally, thermal images of the seat interface were collected before and after each test period. RESULTS: The thermal images revealed that the maximum surface temperature of the solid-strap-based seating system was significantly lower than the other seating systems, -1.21 °C. (95% CI -2.11 to -0.30, p = 0.02), immediately following transfer out of the seat. Five minutes after transferring out of the seat, the perforated-strap seat was significantly cooler than the other seats -0.94 °C. (95% CI -1.59 to -0.30), p = 0.01, as was the solid-strap-based seat, -1.66 °C. (95% CI -2.69 to -0.63), p = 0.01. There were no significant differences in interface temperature or relative humidity measured with the single sensor near the skin-seat interface. CONCLUSION: This pilot study offers preliminary evidence regarding the microclimate of the strap-based seating systems compared with other common seating systems. Clinically, the strap-based seating system may offer another option for those who struggle with microclimate management.


Assuntos
Microclima , Postura Sentada , Traumatismos da Medula Espinal/complicações , Cadeiras de Rodas/normas , Adulto , Idoso , Desenho de Equipamento/normas , Feminino , Humanos , Pessoa de Meia-Idade , Projetos Piloto , Úlcera por Pressão/prevenção & controle , Traumatismos da Medula Espinal/fisiopatologia
8.
Assist Technol ; 28(4): 218-224, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27184610

RESUMO

Current manual standing wheelchairs are not mobile in the standing position. The addition of standing mobility may lead to improved health and function for the user and may increase utilization of standing wheelchairs. In this project, a chain drive system was fitted to a manual standing wheelchair, adding mobility in the standing position. The hand rims are accessible from both seated and standing positions. The prototype uses 16-inch drive wheels in front with casters in the rear. Additional anterior casters are elevated when seated for navigating obstacles and then descend when standing to create a six-wheeled base with extended anterior support. Stability testing shows the center of pressure remains within the base of support when leaning to the sides or front in both seated and standing positions. Four veterans with spinal cord injury provided feedback on the design and reported that mobility during standing was very important or extremely important to them. The veterans liked the perceived stability and mobility of the prototype and provided feedback for future refinements. For example, reducing the overall width (width from hand rim to hand rim) and weight could make this system more functional for users.

9.
J Rehabil Res Dev ; 51(2): 297-303, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24933727

RESUMO

This article describes an inexpensive elastic head support for persons with amyotrophic lateral sclerosis (ALS) and neck muscle weakness and also presents a case series to examine its effectiveness. The device offers support to the head while the user is seated, standing, and walking, providing support for persons in various stages of ALS. The head support system was tested in seven male patients with ALS. Before and after the 2 wk trial, the subjects answered questions related to their communication efficacy, difficulty swallowing, level of neck discomfort, number of hours being upright before neck discomfort, comfort in social settings, and rating of perceived dyspnea. Subjects also answered specific questions related to the elastic head support after the 2 wk trial. The results suggested that the elastic head support is useful for some, but not all, patients.


Assuntos
Esclerose Lateral Amiotrófica/reabilitação , Movimentos da Cabeça/fisiologia , Debilidade Muscular/reabilitação , Aparelhos Ortopédicos , Modalidades de Fisioterapia/instrumentação , Postura/fisiologia , Esclerose Lateral Amiotrófica/complicações , Esclerose Lateral Amiotrófica/fisiopatologia , Elasticidade , Desenho de Equipamento , Feminino , Seguimentos , Humanos , Masculino , Debilidade Muscular/etiologia , Debilidade Muscular/fisiopatologia , Resultado do Tratamento
10.
J Rehabil Res Dev ; 51(8): 1255-64, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25626113

RESUMO

Custom wheelchair seats can be used to help prevent pressure ulcers in individuals with spinal cord injury. In this study, a strap-based system was evaluated in three Veterans with spinal cord injury. Interface pressure distributions were measured after transfers, wheeling, and pressure relief maneuvers and after fittings by three different therapists. We found that pressure distribution measures were not generally affected after transfers and wheeling using the strap-based wheelchair and that pressure relief maneuvers were able to be performed. Additionally, all therapists were able to customize the wheelchair seat to clinically acceptable levels in 4 to 40 min for the three subjects. Future studies can test the long-term effects of using the strap-based wheelchair seat and identifying individuals that would most benefit from a rapidly customizable wheelchair seat.


Assuntos
Traumatismos da Medula Espinal/reabilitação , Cadeiras de Rodas , Desenho de Equipamento , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto
11.
J Spinal Cord Med ; 32(4): 361-78, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19777857

RESUMO

BACKGROUND/OBJECTIVE: Carbohydrate and lipid metabolism disorders may affect adults with spinal cord injuries (SCIs) differently than able-bodied individuals because of reduced physical activity in the SCI population. The objective of this study was to conduct a systematic review to determine the effectiveness of exercise to improve carbohydrate and lipid metabolism disorders in adults with chronic SCI. METHODS: Studies were identified in MEDLINE (1996-2008), Cochrane Library, bibliographies of identified articles, and expert recommendations. English language articles were included if they evaluated adults with chronic SCI; evaluated exercise; and reported carbohydrate-, lipid-, and/or cardiovascular disease-related outcomes. RESULTS: Twenty-two studies met inclusion criteria, including 15 intervention case-series and 7 cross-sectional surveys using self-reported physical activity measures. Intervention protocols involved active (n=7) or electrically stimulated (n=7) exercise or an educational program (n ) from 8 to 52 weeks in duration. Frequency of exercise was typically 2 to 3 sessions/week, lasting 30 to 60 minutes/session. Totals of 150 and 369 subjects participated in studies with carbohydrate (n=12) or lipid and cardiovascular (n=16) outcomes, respectively; 78% were men. Level of SCI ranged from C4 to L5 and included both incomplete and complete lesions. Outcomes measures included fasting and postload blood glucose and insulin concentrations and serum cholesterol levels. Small sample sizes and variations in study design, intervention, SCI characteristics, and reported outcomes precluded quantitative pooling of results or reliable assessment of metabolic efficacy. No intervention studies assessed cardiovascular outcomes. CONCLUSIONS: Evidence is insufficient to determine whether exercise improves carbohydrate and lipid metabolism disorders among adults with SCI. Expert consensus, based on the preliminary evidence, is needed to inform future studies.


Assuntos
Terapia por Exercício , Exercício Físico/fisiologia , Transtornos do Metabolismo de Glucose/reabilitação , Transtornos do Metabolismo dos Lipídeos/reabilitação , Traumatismos da Medula Espinal , Adulto , Fatores Etários , Glicemia , Bases de Dados Bibliográficas/estatística & dados numéricos , Feminino , Transtornos do Metabolismo de Glucose/etiologia , Humanos , Metabolismo dos Lipídeos , Transtornos do Metabolismo dos Lipídeos/etiologia , MEDLINE/estatística & dados numéricos , Masculino , Traumatismos da Medula Espinal/complicações
12.
Evid Rep Technol Assess (Full Rep) ; (163): 1-95, 2008 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-18457480

RESUMO

OBJECTIVES: To assess the prevalence of carbohydrate and lipid disorders in adults with chronic spinal cord injury and evaluate their risk contribution to cardiovascular diseases and the potential impact of exercise and pharmacologic and dietary therapies to alter these disorders and reduce cardiovascular disease risk. DATA SOURCES: MEDLINE (PubMed), Cochrane Database and Web sites of the American Spinal Injury Association, American Paraplegia Society, Paralyzed Veterans of America, Consortium of Spinal Cord Medicine, and WorldCat through August 2007. REVIEW METHODS: English language observational studies addressing prevalence of carbohydrate and lipid disorders were included if they evaluated at least 100 adults with chronic spinal cord injury or a total of 100 subjects if using a control group. Epidemiologic investigations of more than 50 adults with spinal cord injury that were published in English after 1990 and reported cardiovascular morbidity and mortality were abstracted. Intervention studies from 1996-2007 were included regardless of design or size if they assessed exercise, diet, or pharmacologic therapies and reported carbohydrate, lipid, or cardiovascular outcomes. RESULTS: The quality of evidence regarding the prevalence, impact, and outcomes of carbohydrate and lipid disorders in adults with chronic spinal cord injuries is weak. Evidence is limited by relatively few studies, small sample size, lack of appropriate control groups, failure to adjust for known confounding variables, and variation in reported outcomes. However, the existing evidence does not indicate that adults with spinal cord injuries are at markedly greater risk for carbohydrate and lipid disorders or subsequent cardiovascular morbidity and mortality than able-bodied adults. Body mass index is not reliable for assessing body composition, especially percent body fat, in adults with spinal cord injury. There are no high quality studies evaluating the impact of exercise, diet, or pharmacologic therapies on these disorders. CONCLUSIONS: The available evidence does not support incorporating SCI status as an independent variable to assess risk of cardiovascular morbidity and mortality or to alter diagnostic/treatment thresholds compared to able-bodied adults. Furthermore, individuals with SCI may have unique physiologic differences compared to able-bodied individuals. As a result, it is uncertain that findings from studies conducted in able-bodied adults evaluating efficacy and harms of interventions to improve carbohydrate, lipid disorders, and subsequent CVD can be extrapolated to individuals with SCI. The role of exercise in individuals with spinal cord injuries represents a unique challenge and requires further exploration into the benefits, harms, and resource implications of broad-based spinal cord injury exercise programs.


Assuntos
Metabolismo dos Carboidratos , Transtornos do Metabolismo dos Lipídeos/complicações , Traumatismos da Medula Espinal/complicações , Adulto , Idoso , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/mortalidade , Doenças Cardiovasculares/prevenção & controle , Feminino , Transtornos do Metabolismo de Glucose/etiologia , Transtornos do Metabolismo de Glucose/terapia , Humanos , Transtornos do Metabolismo dos Lipídeos/terapia , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Traumatismos da Medula Espinal/metabolismo , Traumatismos da Medula Espinal/mortalidade
13.
Arch Phys Med Rehabil ; 84(9): 1399-400, 2003 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-13680581

RESUMO

We describe a patient with multiple sclerosis (MS) who had detrusor hyperreflexia that was not responsive to oral medications or clean intermittent catheterization. This patient was successfully treated with 2 separate injections of botulinum toxin type B into the bladder. The results of the treatment lasted 4 months and there were no side effects. A cystometrogram (CMG) done before the botulinum toxin type B injections showed significant detrusor instability. A repeat CMG months later showed no detrusor instability. To our knowledge, this is the first reported successful use of botulinum toxin type B in a patient with detrusor hyperreflexia from MS.


Assuntos
Toxinas Botulínicas/uso terapêutico , Esclerose Múltipla/complicações , Hipertonia Muscular/tratamento farmacológico , Bexiga Urinaria Neurogênica/tratamento farmacológico , Adulto , Toxinas Botulínicas/administração & dosagem , Toxinas Botulínicas Tipo A , Feminino , Humanos , Injeções Intramusculares , Hipertonia Muscular/etiologia , Hipertonia Muscular/fisiopatologia , Bexiga Urinaria Neurogênica/etiologia , Bexiga Urinaria Neurogênica/fisiopatologia
14.
J Spinal Cord Med ; 25(1): 40-2, 2002.
Artigo em Inglês | MEDLINE | ID: mdl-11939465

RESUMO

BACKGROUND: Although autonomic dysreflexia (AD) is well documented in the spinal cord injury (SCI) population, its occurrence in persons with multiple sclerosis (MS) is not. A dense multiple sclerotic lesion in the spinal cord at or above the sixth thoracic level can cause interruption of descending inhibitory impulses and thus result in AD. A patient with MS presented to our facility with classic signs and symptoms of AD. We believe that lack of knowledge about the risks for this condition in MS led to a delay in diagnosis. METHODS: Case report illustrates AD in a person with MS. A convenience survey was conducted among clinicians who provide care to people with MS. The survey looked at both awareness of, and experience with, AD in MS. RESULTS: Forty-five percent of the respondents indicated they were not aware of the potential risk for AD among MS patients. Only 10% indicated they were aware of MS patients in their practice who had experienced AD. CONCLUSION: Although AD is probably less common in MS than in SCI, this case does not appear to be unique. Knowledge of this potential life-threatening complication of MS seems to be limited.


Assuntos
Disreflexia Autonômica/diagnóstico , Disreflexia Autonômica/etiologia , Esclerose Múltipla/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Tempo
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