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INTRODUCTION: The revised international standards for neurological classification of spinal cord injury (ISNCSCI) have facilitated the documentation of non-spinal cord injury-related impairments, such as chronic peripheral nerve injuries and muscle weakness due to immobility. This advancement addresses potential biases in muscle strength examinations. Utilizing electrically evoked contractions from paralyzed muscles, enhanced by electrodiagnosis, holds promise in identifying false-negative diagnoses of non-responsiveness to neuromuscular electrical stimulation. This concept prompts the exploration of polyneuromyopathy arising from nonuse in paralyzed muscles. CASE SERIES PRESENTATION: To substantiate our hypothesis, we recruited nine participants for a case series aimed at elucidating the potential benefits of incorporating the stimulus electrodiagnostic test (SET) to mitigate non-responsiveness during preparation for functional electrical stimulation (FES)-assisted cycling. In our convenience sample (n = 5), we conducted neurological mapping based on ISNCSCI and applied SET on the quadriceps. The SET guided optimal dosimetry for evoking contractions and revealed responses similar to those observed in peripheral neuropathies, with α coefficients equal to or lower than 2.00. This observation is likely attributable to nonuse of paralyzed muscles, indicative of an ongoing polyneuropathy in individuals with chronic spinal cord injury (SCI). DISCUSSION: Among the nine initially recruited subjects, seven exhibited responsiveness to neuromuscular electrical stimulation (78% responsiveness), with two participants excluded based on exclusion criteria. In the final five reported cases, all displayed α coefficient values indicating impaired neuromuscular accommodation, and one presented no α coefficient within the normal range. The inclusion of electrodiagnosis appears effective in averting non-responsiveness, suggesting the presence of ongoing polyneuropathies in paralyzed muscles.

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Introduction: Currently studies indicate the need to incorporate the user`s perspective in the testing of new assistive technologies. The objective of this paper is to test a baropodometric insole prototype for monitoring and treatment weight-bearing asymmetry, according to the Participatory Design. Methods: We used a qualitative case study approach during the testing phase of the baropodometric insole prototype. The focus group approach addressed topics related to the experience and accessibility of the potential user in conjunction with professionals, researchers, and physiotherapy students. Facilitators, barriers, and requirements for the device were collected through audio recordings of the discussions during and after prototype testing. Results: Key steps in the prototype testing process were divided into (1) Test of the prototype according to the Participatory Design, divided into Who, When, How, and Why the potential user was involved in the study; and (2) Facilitators, barriers and requirements to improve the prototype. Conclusions: The baropodometric insole prototype can be seen as a promising device for monitoring and treating weight-bearing asymmetry.

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This article proposes the evaluation of the passive movement of the affected elbow during the pendulum test in people with stroke and its correlation with the main clinical scales (Modified Ashworth Scale, Motor Activity Log, and Fulg Meyer). An inertial sensor was attached to the forearm of seven subjects, who then passively flexed and extended the elbow. Joint angles and variables that indicate viscoelastic properties, stiffness (K), damping (B), E1 amp, F1 amp, and relaxation indices were collected. The results show that the FM scale is significantly correlated with the natural frequency (p = 0.024). The MAL amount-of-use score correlates with the natural frequency (p = 0.024). The variables E1 amp, F1 amp, RI, and ERI are not correlated with the clinical scales, but they correlate with each other; the variable E1 amp correlates with F1 amp (p = 0.024) and RI (p = 0.024), while F1 amp correlates with ERI (p = 0.024). There was also a correlation between the natural frequency and K (r = 0.96, p = 0.003). Non-linear results were found for the properties of the elbow joint during the pendulum test, which may be due to the presence of neural and non-neural factors. These results may serve as a reference for future studies if alternative scales do not provide an accurate reflection.

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OBJECTIVE: The present study aimed to determine the association between neuromuscular function, motor function impairment, and muscle and tendon structures in individuals with spinal cord injury (SCI) compared to a control (non-disabled) population. DESIGN: A cross-sectional study with a control group. SETTING: Center of Adapted Sports Training and Special Physical Education. PARTICIPANTS: Fifteen individuals with SCI and motor function impairments participated in the study. A paired non-disabled group was recruited for comparison. INTERVENTIONS: Not applicable. OUTCOME MEASURES: Muscle (biceps brachii, rectus femoris, vastus lateralis, vastus medialis, and tibialis anterior) and tendon (quadriceps and patellar tendons) structures were assessed by ultrasound imaging (thickness, pennation angle, fascicle length, and echogenicity). Neuromuscular electrophysiological disorders were also assessed using electrodiagnosis techniques (stimulus non-responsivity and chronaxie) in the same muscles. RESULTS: Except for the biceps brachii muscle, muscle thickness, pennation angle, and fascicle length were lower (p < 0.01) while echogenicity and chronaxie were greater (p < 0.01) in SCI participants. The SCI participants had a higher prevalence of neuromuscular electrophysiological disorders for all muscles, except the biceps brachii. CONCLUSION: Neuromuscular disorders occur in association with muscle and tendon maladaptation in individuals with chronic SCI. A higher prevalence of electrophysiological disorders suggests an acquired polyneuromyopathy for muscles with motor function impairment even though the muscle was innerved, in addition to widespread muscle atrophy.

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Since the first Cybathlon 2016, when twelve teams competed in the FES bike race, we have witnessed a global effort towards the development of stimulation and control strategies to improve FES-assisted devices, particularly for cycling, as a means to practice a recreational physical activity. As a result, a set of technical notes and research paved the way for many other studies and the potential behind FES-assisted cycling has been consolidated. However, engineering research needs instrumented devices to support novel developments and enable precise assessment. Therefore, some researchers struggle to develop their own FES-assisted devices or find it challenging to implement their instrumentation using commercial devices, which often limits the implementation of advanced control strategies and the possibility to connect different types of sensor. In this regard, we hypothesize that it would be advantageous for some researchers in our community to enjoy access to an entire open-source FES platform that allows different control strategies to be implemented, offers greater adaptability and power capacity than commercial devices, and can be used to assist different functional activities in addition to cycling. Hence, it appears to be of interest to make our proprietary electrical stimulation system an open-source device and to prove its capabilities by addressing all the aspects necessary to implement a FES cycling system. The high-power capacity stimulation device is based on a constant current topology that allows the creation of biphasic electrical pulses with amplitude, width, and frequency up to 150 mA, 1000 µs, and 100 Hz, respectively. A mobile application (Android) was developed to set and modify the stimulation parameters of up to eight stimulation channels. A proportional-integral controller was implemented for cadence tracking with the aim to improve the overall cycling performance. A volunteer with complete paraplegia participated in the functional testing of the system. He was able to cycle indoors for 45 min, accomplish distances of more than 5 km using a passive cycling trainer, and pedal 2400 m overground in 32 min. The results evidenced the capacity of our FES cycling system to be employed as a cycling tool for individuals with spinal cord injury. The methodological strategies used to improve FES efficiency suggest the possibility of maximizing pedaling duration through more advanced control techniques.

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The Wheelchair Skills Test-Questionnaire form for Manual Wheelchairs Operated by Wheelchair Users (WSTQ-M-WCU 4.3) assesses wheelchair skills that may influence users' occupational performance in their daily activities. The purpose of this study was to cross-culturally adapt the WSTQ-M-WCU 4.3 to Brazilian Portuguese and to examine the inter-rater and test-retest reliabilities. This is a methodological study of cross-cultural adaptation and psychometric properties of reliability. The agreement achieved in the cross-cultural adaptation concerning idiomatic, cultural, conceptual and semantic aspects was 100%, 99.2%, 100% and 96.18%, respectively. We analyzed the test-retest and inter-rater reliabilities in a convenience sample of 46 manual wheelchair users using Cronbach's Alpha and Bland-Altman plots. The Brazilian version has excellent internal consistency (α > 0.9) and strong inter-rater reliability (p < .05). This instrument can guide practitioners in training wheelchair skills, thus contributing to the planning of interventions and for evidence-based practice in Assistive Technology.

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To explore pain complaints and health-related conditions, verifying if permanent or temporary usage of forearm crutches could be associated with them. We designed a cross-sectional study from a sample who answered a five-month public call. We organized data into five domains: (1) diseases, signs and symptoms; (2) personal factors related to age, sex, marital status, and paid occupation; (3) body structure and functional components defined by body mass index, arterial pressure, mental state, and pain; (4) activities and participation assessed by satisfaction with Assistive Technology; (5) and environmental factors focused on medicines and forearm crutch usage. The sample was geo-referenced by address, and the frequency of the codified health conditions was distributed according to ICD-10's chapters. We recruited three times more permanent than temporary users dealing with chronic and external causes of diseases. Pain mapping suggested different pattern of complaints between permanent and temporary users. Women who were temporary users seemed more likely to be injured because of external causes. Moreover, both users reported intense (31%) and moderate (53%) levels of pain. In contrast, mild pains were only reported by permanent users (16%), suggesting a distinction between acute and chronic pain according to the kind of forearm crutch usage.

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BACKGROUND: The cross-sectional area (CSA) records make an essential measurement for determining the mechanical properties of tendons, such as stress and strength. However, there is no consensus regarding the best method to record the CSA from different tendons. PURPOSE: To determine intra- and inter-rater reliability for CSA measures from magnetic resonance imaging (MRI) of the following tendons: tibialis anterior; tibialis posterior; fibularis longus and brevis; and Achilles. MATERIAL AND METHODS: We designed an observational study with repeated measures taken from a convenience sample of 20 participants diagnosed with acute or chronic ankle sprain. Two independent raters took three separate records from the CSA of ankle tendon images of each MRI slice. The intra-class correlation coefficient (ICC) and 95% limits of agreement (LoA) defined the quality (associations) and magnitude (differences), respectively, of intra- and inter-rater reliability on the measures plotted by the Bland-Altman method. RESULTS: Data showed very high intra- and inter-rater correlations for measures taken from all tendons analyzed (ICC 0.952-0.999). It also revealed an excellent agreement between raters (0.12%-2.3%), with bias no higher than 2 mm2 and LoA in the range of 4.4-7.9 mm2. The differences between repeated measures recorded from the thinnest tendons (fibularis longus and brevis) revealed the lowest bias and narrowest 95% LoA. CONCLUSION: Reliability for the CSA of ankle tendons measured from MRI taken by independent rates was very high, with the smallest differences between raters observed when the thinnest tendon was analyzed.

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STUDY DESIGN: Systematic review. OBJECTIVE: To determine the effectiveness of physiotherapy interventions for the treatment of spasticity in people with spinal cord injuries. SETTING: Not applicable. METHODS: A comprehensive search was undertaken to identify all randomised controlled trials of physiotherapy interventions that included an assessor-reported (objective) or participant-reported (subjective) measure of spasticity. Only trials that provided a physiotherapy intervention on more than one occasion were included. The susceptibility to bias of each trial was rated on the PEDro scale. Data were extracted to derive mean between-group differences (95% CI) for each trial. RESULTS: Twenty-eight trials were identified but only 17 provided useable data. Seven trials compared a physiotherapy intervention to no intervention (or a sham intervention) and 10 trials compared one physiotherapy intervention to another physiotherapy intervention. The median (IQR) PEDro score of the 17 trials was 6/10 (6-8). The most commonly used assessor- and participant-reported measures of spasticity were the Ashworth scale and Spinal Cord Injury Spasticity Evaluation Tool, respectively. Only one trial demonstrated a treatment effect. This trial compared continuous passive motion of the ankle to no treatment on the Ashworth scale. The remaining 16 trials were either inconclusive or indicated that the treatment was ineffective for reducing spasticity. CONCLUSIONS: There is no high-quality evidence to indicate that physiotherapy interventions decrease spasticity but this may reflect a lack of research on the topic. Future trials should focus on participant-reported measures of spasticity that distinguish between the immediate, short-term and long-term effects of any physiotherapy intervention.

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Mobility is essential for activities of daily living and therapists should give priority to evaluate its effects in their client's performance. We aimed to ascertain the intra- and inter-rater reliability of Functional Mobility Assessment (FMA) and to identify correlations among satisfaction, independence, and skills in 44 users of manual wheelchairs and three users of powered wheelchairs. We analyzed the test-retest and inter-rater reliability of the FMA in a sample of 47 wheelchair users using the Cronbach's Alpha. For correlations with FMA were used the Quebec User Evaluation of Satisfaction with Assistive Technology, Functional Independence Measure, and Wheelchair Skills Test Questionnaire (manual and powered forms). The test-retest reliability showed good internal consistency (α > 0.9). Associations between functional independence, wheelchair skills, and functional mobility were significant (p < .05). The Brazilian version of the FMA is reliable for use among wheelchair users, and its correlation with other measurements suggests cohesion among assessments related to mobility devices.

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RESUMO: A participação ocupacional é uma questão crucial para a atenção à pessoa com deficiência e caracteriza-se pelo grau de participação de uma pessoa em várias ocupações, tais como as de autocuidado, trabalho, escola, lazer, dentre outras. O objetivo deste estudo foi, assim, verificar se a participação ocupacional avaliada pelo Model of Human Occupation Screening Tool (MOHOST Brasil) apresenta correlações com as medidas de independência funcional e de cognição em adultos com deficiências. Foram avaliadas 41 pessoas com deficiência física usando o MOHOST Brasil, a Medida de Independência Funcional (MIF) e o Mini Exame do Estado Mental (MEEM). A subescala motora da MIF apresentou correlação moderada com o fator de habilidades motoras MOHOST (r 0,586 p = 0,001). O item "Linguagem e práxis" do MEEM apresentou correlação moderada com o fator "habilidades de processo" do MOHOST (r 0,573 p = 0,001). As correlações entre o MOHOST e a MIF e entre o MOHOST e o MEEM mostram que há relação entre as dimensões de participação, desempenho e habilidades, confirmando que o MOHOST é útil para avaliar a participação ocupacional de pessoas com deficiências físicas. Conclui-se também que o MOHOST pode fornecer dados que possam contribuir para o planejamento de intervenções que estimulem a participação ocupacional em diferentes papéis no âmbito da Terapia Ocupacional e na sua inferface com a Educação Especial.

ABSTRACT: Occupational participation is a crucial issue for people with disabilities care and it is characterized by the degree of a person's participation in various occupations, such as self-care, work, school, leisure, among others. Thus, this study's objective was to examine if the occupational participation measured by Model of Human Occupation Screening Tool (MOHOST Brazil) has correlations with measures of functional independence and cognition in adults with disabilities. Forty-one (n=41) people with physical disabilities were assessed using the MOHOST Brazil, Functional Independence Measure (FIM) and the Mini-Mental State Examination (MMSE). The FIM's motor subscale presented moderate correlation with the MOHOST motor skills factor (r 0.586 p=0.001). The MMSE's item "Language and praxis" presented moderate correlation with the MOHOST's factor "process skills" (r 0.573 p= 0.001). The correlations between the MOHOST and FIM and between the MOHOST Brazil and MMSE show there is an inter-relation between the dimensions of participation, performance and skills, confirming that the MOHOST is useful for assessing occupational participation of people with disabilities. It is also concluded that MOHOST can provide information that can contribute on planning interventions to support occupational participation in different roles for Occupational Therapy and its possibilities of work in the field of Special Education.

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Objective: The aim of the present study was to verify the intra- and inter-rater reliability and agreement of the stimulus electrodiagnostic test (SET) measurements obtained by pen and square electrodes in the vastus lateralis and tibialis anterior muscles. Design: An intra- and inter-rater reliability and agreement study was performed for the SET by two independent raters. Two different sizes of cathode electrodes (1 cm2 and 25 cm2) and two muscles were assessed (tibialis anterior and vastus lateralis). Results: Chronaxie did not change according to the different electrodes. A high intra-rater reliability (0.72 ≤ r ≤ 0.88) was detected independently of the electrode and muscle assessed. Moreover, moderate and almost perfect agreements (0.51 ≤ Kappa ≤ 1.00) were detected on intra-rater assessment. Similar correlations (0.74 ≤ r ≤ 0.79) were found for intra-rater reliability. However, dissimilar inter-rater agreement was detected: Kappa ≤ 0.40 for tibialis anterior and Kappa = 1.00 for vastus lateralis. Conclusion: The SET presented high reliability and moderate agreement in intra-rater evaluations. A fair agreement was found in the inter-rater assessment of the tibialis anterior. Evaluations performed with different electrode sizes did not influence the results. Therefore, the SET should be performed by a unique rater in test retest situations.

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Abstract Introduction The Model of Human Occupation Screening Tool (MOHOST) was developed in the UK and measures the occupational participation. Until its translation, there were no standardised instruments in Brazil of a similar nature. Objectives To describe the translation and cross-cultural adaptation process of the MOHOST for Brazil, its face validity and test-retest reliability among occupational therapists. Method A translation agreement was established allowing the assessment to be translated and honed after a back translation. An expert committee was formed of ten occupational therapists to test face validity of the instrument with 50 occupational therapists. Statistical analysis was employed to investigate whether the occupational therapists' understanding of the MOHOST was linked to their length of clinical experience. The test-retest reliability was examined among a sample of eight adults with physical disabilities. Results The cross-cultural adaptation of the Brazilian MOHOST has been completed. A significant correlation (p=0.04) was found between years of professional experience and greater understanding of the MOHOST items. The MOHOST presented very high reliability in the test-retest (r>0.900). Conclusion A Brazilian translation of the MOHOST has face validation and test-retest reliability. Future studies addressing this instrument's psychometric properties of validity and inter-rater reliability are recommended.

Resumo Introdução O Instrumento de Identificação da Participação Ocupacional do Modelo de Ocupação Humana (MOHOST Brasil) foi desenvolvido no Reino Unido e mensura a participação ocupacional. Até a sua presente tradução, para o Brasil, não haviam instrumentos padronizados e que mensurassem o mesmo constructo. Objetivos Descrever o processo de tradução e adaptação cultural do MOHOST para o Brasil, examinar a sua validade de face e confiabilidade no teste-reteste por terapeutas ocupacionais. Método Inicialmente foi estabelecido um contato para a autorização da tradução e, posteriormente, seguidas as etapas de tradução, retrotradução, comitê de especialistas, validade de face e teste-reteste. O comitê de especialistas foi composto por dez terapeutas ocupacionais. A validade de face contou com a participação de 50 terapeutas ocupacionais. A análise estatística foi empregada para investigar se o entendimento do MOHOST pelos terapeutas ocupacionais estava vinculado à sua duração da experiência clínica. A confiabilidade teste-reteste foi examinada em uma amostra de oito adultos com deficiência física, em um intervalo de uma semana. Resultados A adaptação transcultural do MOHOST (Brasil) foi concluída. Foi encontrada uma correlação significativa (p=0,04) entre anos de experiência profissional e maior entendimento dos itens do MOHOST. O MOHOST apresentou confiabilidade muito alta no teste-reteste (r>0,900). Conclusão A versão brasileira apresenta validação de face e confiabilidade no teste-reteste. Estudos futuros abordando as propriedades psicométricas de validade convergente e confiabilidade entre avaliadores são recomendados.

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Individuals who sustained a spinal cord injury often lose important motor skills, and cannot perform basic daily living activities. Several assistive technologies, including robotic assistance and functional electrical stimulation, have been developed to restore lost functions. However, designing reliable interfaces to control assistive devices for individuals with C4-C8 complete tetraplegia remains challenging. Although with limited grasping ability, they can often control upper arm movements via residual muscle contraction. In this article, we explore the feasibility of drawing upon these residual functions to pilot two devices, a robotic hand and an electrical stimulator. We studied two modalities, supra-lesional electromyography (EMG), and upper arm inertial sensors (IMU). We interpreted the muscle activity or arm movements of subjects with tetraplegia attempting to control the opening/closing of a robotic hand, and the extension/flexion of their own contralateral hand muscles activated by electrical stimulation. Two groups were recruited: eight subjects issued EMG-based commands; nine other subjects issued IMU-based commands. For each participant, we selected at least two muscles or gestures detectable by our algorithms. Despite little training, all participants could control the robot's gestures or electrical stimulation of their own arm via muscle contraction or limb motion.

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Since the outset of body image reconstruction for diagnosis purposes, ultrasound has been used to investigate structural changes located in tendons. Ultrasound has clinical applications in the intensive care unit, but its utility for tendon imaging remains unknown. Thus, we aimed to determine intra- and inter-rater reproducibility of measures obtained by images generated through morphological tendon sonographic analysis recorded from critically ill patients. We designed a cross-sectional study to assess thickness, cross-sectional area, and echogenicity of patellar and quadriceps tendons in a convenience sample formed with 20 critically ill patients. Two independent raters (experienced and novice) recorded repeated measures, checking for agreement (Kappa statistics) and reliability (Intraclass coefficient Correlation-ICC and Bland-Altman). The quality of images acquired by the two independent raters substantially agreed (k = 0.571-1.000), regardless of the region on the patellar tendon or the studied tendon (patellar or quadriceps). Regardless of how much experience the rater had, their repeated records (intra-rater reliability) always demonstrated almost complete correlation, ICC ranging from 0.89 to 0.98 for both tendons in all outcomes. At the same way, the statistically significant inter-rater ICC ranging from 0.87 to 0.97. Both repeated measures by the raters (intra-rater) and the repeated single and double measures between the raters (inter-rater) presented a minimum measurement error constituting a predominant pattern of random variability. We conclude that ultrasound imaging acquisition performed by independent raters for tendon thickness, CSA, and echogenicity monitoring of critically ill patients are acceptable and are not influenced by rater experience.

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STUDY DESIGN: This work is a systematic review with meta-analysis OBJECTIVE: Evaluate the effect of electrical stimulation (ES) on skeletal muscle volume and spasticity in individuals with spinal cord injury (SCI). SETTING: University of Brasilia, Brazil METHODS: Searches were conducted of the Cochrane Library, MEDLINE, CINAHL, PEDro, PsycINFO and EMBASE electronic databases for relevant articles published up to June 2018. No restrictions were imposed regarding the year of publication. The inclusion criteria were randomized controlled trials involving adults with SCI comparing ES to an active or passive control. Two independent reviewers extracted the data from the selected studies and methodological quality was assessed using the PEDro scale. RESULTS: The initial search led to the retrieval of 164 studies, seven of which met the eligibility criteria, but only six were included in the meta-analysis. The six studies comprised 104 patients with complete or incomplete SCI. In the two studies that investigated the use of ES on muscle volume of the lower limbs, the overall effect was statistically significant in patients with acute SCI (mean difference: 0.86; 95% CI: 0.04 to 1.69; p < 0.04). Among the four studies that examined the use of ES for spasticity of the lower limb, the overall effect was non-significant (mean difference: 0.55; 95% CI: -0.31 to 1.41; p = 0.21). CONCLUSIONS: Electrical stimulation was found to be an effective method for increasing muscle volume in SCI patients, but had no effect on spasticity. Further investigation of the effect of ES on spasticity in SCI is needed.

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Central nervous system diseases include brain or spinal cord impairments and may result in movement disorders almost always manifested by paralyzed muscles with preserved innervations and therefore susceptible to be activated by electrical stimulation. Functional electrical stimulation (FES)-assisted cycling is an approach mainly used for rehabilitation purposes contributing, among other effects, to restore muscle trophism. FES-assisted cycling has also been adapted for mobile devices adding a leisure and recreational benefit to the physical training. In October 2016, our teams (Freewheels and EMA-trike) took part in FES-bike discipline at the Cybathlon competition, presenting technologies that allow pilots with spinal cord injury to use their paralyzed lower limb muscles to propel a tricycle. Among the many benefits observed and reported in our study cases for the pilots during preparation period, we achieved a muscle remodeling in response to FES-assisted cycling that is discussed in this chapter. Then, we have organized some sections to explore how FES-assisted cycling could contribute to functional rehabilitation by means of changes in the skeletal muscle disuse atrophy.

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Background Stroke represents the largest cause of chronic disability resulting in muscle weakness and instability in the trunk muscles. Despite the reliable measures from isokinetic devices for upper/lower limb muscles, there is a lack of measures for trunk muscles in post-stroke hemiparesis. Objectives To investigate the reliability of the strength and endurance measures from an isokinetic dynamometer for able-bodied and post-stroke hemiparesis people. Methods The measures were taken from both groups (control/hemiparesis) performing antagonistic movements (flexion/extension) during different protocols (seated-compressed and semi-standing) to assess strength (60º/s) and endurance (120º/s). The intra-class correlation coefficient (ICC) and limits of agreement (LOA) defined the quality and magnitude of reliability on the measurements plotted with 95% confidence interval (95% CI) by Bland-Altman method. Results ICC ranged from 0.58 to 0.99, with few ICC values classified as moderate when repeated by raters during test and a single value during retest. The total work was the only variable to present LOA higher than the limits. Conclusion Results indicate acceptable reliability, in two different protocols, confirming the repeatability of the isokinetic measures for trunk muscles in able-bodied and post-stroke hemiparesis.

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STUDY DESIGN: Systematic review. OBJECTIVE: The purpose of the study was to identify and organize evidence regarding quality of life influenced by assistive technology related to computers for people with traumatic and non-traumatic spinal cord injury (SCI). SETTING: Distrito Federal, Brazil. METHODS: A search strategy was conducted on the PubMed, PEDro, LILACS, PsycINFO, and SCIELO. All types of study designs considering assistive technology to improve quality of life for individuals with SCI were included. After search strategy procedures, ten references were included to review. The methodologic quality of each study was evaluated using the Level of Evidence proposed by the Oxford Centre for Evidence-based Medicine. RESULTS: Most of the studies showed that devices for computer access improve the quality of life of people with SCI, regardless of the level of injury and type of resource. However, the positive outcomes in the quality of life should be interpreted with caution, as several methodological limitations were observed in the articles. CONCLUSIONS: Despite the scarcity of studies and their methodological limitations, there is evidence that assistive technology for computer access favors the quality of life of people with tetraplegia due to SCI, since it improves participation, independence, and self-esteem.

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Objetivo: Buscar sistematicamente na literatura evidências de hipertrofia muscular em pessoas idosas por meio do treinamento de resistência. Métodos: Trata-se de uma revisão sistemática de literatura levando em consideração os preceitos do PRISMA. Consultaram-se os bancos de dados Pubmed, Scielo e Pedro nos idiomas português e inglês, por meio dos descritores: idoso, envelhecimento, ganho de massa muscular e hipertrofia muscular. Resultados: Não ocorreram estudos na plataforma Scielo, e após filtro com base nos critérios de inclusão e exclusão obtiveram-se 24 estudos. Os estudos demonstram que é possível melhorar a massa muscular em treinamento de resistência em idosos, uma vez que os exercícios apresentem a dose correta: intensidade, volume, carga apropriada, utilizando uma investigação sensível. Conclusão: Sugere-se que para hipertrofia muscular em idosos, os protocolos de treinamento resistidos tenham em média 12 semanas de treinamento, com frequência de duas a três vezes por semana, que apresentem cinco exercícios realizados em três séries de oito a 12 repetições e cargas superiores a 60% 1RM para que ocorra a hipertrofia muscular. (AU)

Objective: To systematically seek evidence in the literature for muscular hypertrophy in older people through resistance training. Methods: This is a systematic review of literature taking into account the precepts of PRISMA. The Pubmed, Scielo and Pedro databases were consulted in the Portuguese and English languages, using the descriptors: elderly, aging, muscle mass gain and muscle hypertrophy. Results: There were no studies in the Scielo platform, after filtering based on the inclusion and exclusion criteria, 24 studies were obtained. It show that is possible to improve muscle mass in endurance training in the elderly, once the exercises present the correct dose: intensity, volume, appropriate load, using a sensitive investigation. Conclusion: It is suggested that for muscular hypertrophy in the elderly, the resistance training protocols have, on average, 12 weeks of training, two to three times a week, with five exercises performed in three sets of eight to 12 repetitions and higher loads to 60% 1RM for muscle hypertrophy to occur. (AU)

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