ORTHOSTATIC SUPPORT IN PARAPLEGIC AND AMPUTEE PATIENTS: A CONTROLLED TRIAL.

Introduction: Functional incapacity caused by physical alterations leads to significant limitations in daily activities and has a major impact on the return of people with disabilities to the social space and the workplace. This calls for an evaluation of the long-term influence of the use of a device specially developed for orthostatic posture on the physiological, biomechanical and functional parameters of amputees and spinal cord patients. Objective: The objective was evaluate the effect of postural support device use on function, pain, and biomechanical and cardiologic parameters in spinal cord injury and amputees patients compared to a control group. Methods: The orthostatic device was used by the participants for a period of ten consecutive days, for three cycles of 50 minutes each day, and a 15-day follow-up. Participants were positioned and stabilized using adjustable straps on the shoulders, trunk, and hips. The primary outcome was brief pain inventory. Fifteen participants were included the control group, 15 in the amputee group, and 15 in the spinal cord group. Results: Our results demonstrate that the use of the device allows the orthostatic position of amputees and spinal cord patients evaluated for ten days, leading to improved functionality and pain in the spinal cord and amputee groups compared to the control group. In addition, no changes were observed for secondary outcomes, indicating that the use of the device did not cause harm interference to patients. Conclusion: The long-term use of the orthostatic device is beneficial for improving functionality, reduce pain in amputees and spinal cord injury patients. Level of evidence II; Therapeutic Studies - Investigating the results of treatment.

Introdução: A incapacidade funcional causada por alterações físicas leva a limitações significativas nas atividades diárias e gera um grande impacto no retorno das pessoas com deficiência ao espaço social e ao local de trabalho, demandando a avaliação da influência em longo prazo do uso de um dispositivo especialmente desenvolvido para a postura ortostática nos parâmetros fisiológicos, biomecânicos e funcionais de pacientes amputados e com medula espinhal. Objetivo: O objetivo foi avaliar o efeito do uso do dispositivo de suporte postural na função, dor e parâmetros biomecânicos e cardiológicos em pacientes com lesão medular e amputados em comparação com um grupo controle. Métodos: O aparelho ortostático foi utilizado pelos participantes por um período de dez dias consecutivos, em três ciclos de 50 minutos diários, com acompanhamento de 15 dias. Os participantes foram posicionados e estabilizados por meio de alças ajustáveis nos ombros, tronco e quadris. O desfecho primário foi o questionário Breve Inventário de Dor. Quinze participantes foram incluídos no grupo controle, 15 no grupo amputado e 15 no grupo medular. Resultados: Nossos resultados demonstram que o uso do dispositivo permite a posição ortostática de amputados e pacientes com lesão medular avaliados por dez dias, levando a melhora da funcionalidade e dor nos grupos de amputados e medula espinhal em relação ao grupo controle. Além disso, não foram observadas alterações nos resultados secundários, indicando que o uso do dispositivo não causou interferência prejudicial aos pacientes. Conclusão: O uso prolongado do dispositivo ortostático é benéfico para melhorar a funcionalidade, reduzir a dor em amputados e pacientes com lesão medular. Nível de Evidência II; Estudos Terapêuticos - Investigação dos resultados de tratamento.

Orthostatic support in paraplegic and amputee patients: a controlled trial / Suporte ortostático em paraplégicos e amputados: um ensaio controlado

ABSTRACT Introduction: Functional incapacity caused by physical alterations leads to significant limitations in daily activities and has a major impact on the return of people with disabilities to the social space and the workplace. This calls for an evaluation of the long-term influence of the use of a device specially developed for orthostatic posture on the physiological, biomechanical and functional parameters of amputees and spinal cord patients. Objective: The objective was evaluate the effect of postural support device use on function, pain, and biomechanical and cardiologic parameters in spinal cord injury and amputees patients compared to a control group. Methods: The orthostatic device was used by the participants for a period of ten consecutive days, for three cycles of 50 minutes each day, and a 15-day follow-up. Participants were positioned and stabilized using adjustable straps on the shoulders, trunk, and hips. The primary outcome was brief pain inventory. Fifteen participants were included the control group, 15 in the amputee group, and 15 in the spinal cord group. Results: Our results demonstrate that the use of the device allows the orthostatic position of amputees and spinal cord patients evaluated for ten days, leading to improved functionality and pain in the spinal cord and amputee groups compared to the control group. In addition, no changes were observed for secondary outcomes, indicating that the use of the device did not cause harm interference to patients. Conclusion: The long-term use of the orthostatic device is beneficial for improving functionality, reduce pain in amputees and spinal cord injury patients. Level of evidence II; Therapeutic Studies - Investigating the results of treatment.

RESUMO Introdução: A incapacidade funcional causada por alterações físicas leva a limitações significativas nas atividades diárias e gera um grande impacto no retorno das pessoas com deficiência ao espaço social e ao local de trabalho, demandando a avaliação da influência em longo prazo do uso de um dispositivo especialmente desenvolvido para a postura ortostática nos parâmetros fisiológicos, biomecânicos e funcionais de pacientes amputados e com medula espinhal. Objetivo: O objetivo foi avaliar o efeito do uso do dispositivo de suporte postural na função, dor e parâmetros biomecânicos e cardiológicos em pacientes com lesão medular e amputados em comparação com um grupo controle. Métodos: O aparelho ortostático foi utilizado pelos participantes por um período de dez dias consecutivos, em três ciclos de 50 minutos diários, com acompanhamento de 15 dias. Os participantes foram posicionados e estabilizados por meio de alças ajustáveis nos ombros, tronco e quadris. O desfecho primário foi o questionário Breve Inventário de Dor. Quinze participantes foram incluídos no grupo controle, 15 no grupo amputado e 15 no grupo medular. Resultados: Nossos resultados demonstram que o uso do dispositivo permite a posição ortostática de amputados e pacientes com lesão medular avaliados por dez dias, levando a melhora da funcionalidade e dor nos grupos de amputados e medula espinhal em relação ao grupo controle. Além disso, não foram observadas alterações nos resultados secundários, indicando que o uso do dispositivo não causou interferência prejudicial aos pacientes. Conclusão: O uso prolongado do dispositivo ortostático é benéfico para melhorar a funcionalidade, reduzir a dor em amputados e pacientes com lesão medular. Nível de Evidência II; Estudos Terapêuticos - Investigação dos resultados de tratamento.

Fear and avoidance of shoulder movement according to the International Code of Functioning: cross-sectional study / Medo e evitação de movimento do ombro segundo o Código Internacional de Funcionalidade: estudo transversal

ABSTRACT BACKGROUND AND OBJECTIVES: Shoulder pain is a limiting condition that has a major impact on daily activities and work. Knowing which specific activities involving the shoulder are associated with the occurrence of higher levels of pain may be of interest to professionals. The use of images of shoulder movements can be an effective tool to check the presence of pain and fear of movement, break down language and cultural barriers, and facilitate communication between professional and patient. The objectives of this study were: (1) to carry out a descriptive analysis of fear responses and movement avoidance based on passive viewing of images of shoulder movements based on the International Classification of Functioning, Disability and Health (ICF) codes; (2) to check whether there is a correlation between fear responses and movement avoidance with the Shoulder Pain and Disability Index (SPADI). METHODS: In this cross-sectional observational study, individuals with chronic shoulder pain were recruited. Participants responded to the Shoulder Pain and Disability Index (SPADI) and the TAMPA Scale of Kinesiophobia (TSK) to measure the intensity of shoulder pain and disability, and fear of movement, respectively. Participants viewed 58 movement images based on codes and descriptors from the third chapter of ICF. In addition, they responded to a numerical scale to judge fear of movement and a second numerical scale to judge movement avoidance. RESULTS: The study included 42 individuals. The activities belonging to the mobility subgroup (chapter 4), which refers to chapter 3 of the ICF, are those that present greater responses of fear and movement avoidance. Multiple regression resulted in a significant model [F(1, 40) = 31.119; p<0.001; R2 = 0.438], when verifying whether fear and movement avoidance responses related to ICF images are associated with SPADI in participants with chronic shoulder pain. The fear response is associated with SPADI (β=0.661; t=5.578; p<0.001), however, the avoidance response did not present a significant result with the scale (β=−0.063; t=-0.160; p=0.874). CONCLUSION: Movements that refer to mobility seem to be the most feared and avoided by people with chronic shoulder pain. Fear of movement is associated with shoulder disability.

RESUMO JUSTIFICATIVA E OBJETIVOS: A dor no ombro é uma condição limitante, que apresenta grande impacto nas atividades de vida diárias e no trabalho. Conhecer quais atividades específicas envolvendo o ombro estão associadas à ocorrência de maiores níveis de dor pode ser de interesse dos profissionais. A utilização de imagens de movimentos do ombro pode ser uma ferramenta eficaz para verificar a presença de dor e medo de movimento, quebrar barreiras de linguagem e culturais e facilitar a comunicação entre profissional e paciente. Os objetivos deste estudo foram: (1) realizar a análise descritiva das respostas de medo e evitação do movimento a partir da visualização passiva de imagens de movimentos do ombro baseadas nos códigos da Classificação Internacional de Funcionalidade, Incapacidade e Saúde (CIF); (2) verificar se há correlação das respostas de medo e evitação do movimento com o Índice de dor e Incapacidade do Ombro (SPADI). METODOS: Neste estudo observacional do tipo transversal foram recrutadas pessoas com dor crônica no ombro. Os participantes responderam ao Shoulder Pain and Disability Index (SPADI) e à Escala TAMPA de Cinesiofobia (TSK) para mensurar a intensidade da dor e incapacidade do ombro, e de medo do movimento, respectivamente. Os participantes visualizaram 58 imagens de movimentos baseadas em códigos e descritores do terceiro capítulo de Atividade e Participação da CIF. Além disso, responderam a uma escala numérica para julgar o medo do movimento e a uma segunda escala numérica para julgar a evitação ao movimento. RESULTADOS: Participaram do estudo 42 pessoas. As atividades pertencentes ao subgrupo mobilidade (capítulo 4), referente ao capítulo 3 da CIF, são as que apresentam maiores respostas de medo e evitação do movimento. A regressão múltipla resultou em um modelo significativo [F (1, 40) = 31, 119; p<0,001; R2 = 0,438], ao verificar se as respostas de medo e evitação do movimento referente às imagens da CIF estão associadas ao SPADI dos participantes com dor crônica no ombro. A resposta de medo é associada ao SPADI (β=0,661; t=5,578; p<0,001), porém a resposta de evitação não apresentou resultado significativo com a escala (β=−0,063; t=−0,160; p=0,874). CONCLUSÃO: Os movimentos que se referem à mobilidade parecem ser os mais temidos e evitados por pessoas com dor crônica no ombro. O medo do movimento está associado com a incapacidade do ombro.

Pressure pain threshold in people with amputation submitted to the use of postural lifting equipment: crossover experimental study / Limiar de dor por pressão em pessoas com amputação submetidas ao uso de equipamento de elevação postural: um estudo experimental cruzado

ABSTRACT BACKGROUND AND OBJECTIVES: Amputation is an event that has consequences that can affect daily life, including pain, enhancing changes, whether in sleep or in quality of life. The objective of this study was to evaluate the pressure pain threshold (PPT) in people with amputations submitted to the use of different postural elevation equipment. METHODS: Experimental crossover study, carried out from September to October 2022, with people with lower limb amputation (n=15) and people without amputation (n=15). PPT in four regions (T12-L1, L5-S1, anterior tuberosity of the tibia and calcaneus) were evaluated before and after the use of different versions (A and B) of an equipment for postural elevation, gravity and pain interference. Presence of signs and symptoms of central sensitization (CS) and sleep quality. RESULTS: The groups did not present PPT alterations when compared between the different versions of the equipment (p<0.05) in the four locations analyzed. Furthermore, the groups did not show differences in relation to the evaluation days or among themselves regarding the severity and interference of pain and the presence of signs and symptoms of CS. The control group indicated poor sleep quality (p=0.0173) and remained worse than people with amputation. CONCLUSION: The versions of the equipment did not change PPT in the analyzed areas. The groups did not differ between themselves, suggesting that the equipment promoted similar responses, that is, no change in sensitivity was evidenced in the analyzed regions which have greater contact with stabilization elements and weight discharge of the equipment.

RESUMO JUSTIFICATIVA E OBJETIVOS: A amputação é um evento que acarreta consequências que podem afetar o cotidiano, entre elas a dor, potencializando alterações, seja no sono ou na qualidade de vida. O objetivo deste estudo foi avaliar o limiar de dor por pressão (LDP) em pessoas com amputação submetidas ao uso de diferentes equipamentos de elevação postural. MÉTODOS: Estudo experimental cruzado, realizado de setembro a outubro de 2022, com pessoas com amputação no membro inferior (n=15) e pessoas sem amputação (n=15). Foram avaliados o LDP em quatro regiões (T12-L1, L5-S1, tuberosidade anterior da tíbia e calcâneo) pré e pós uso de distintas versões (A e B) de um equipamento de elevação postural, gravidade e interferência da dor. Presença de sinais e sintomas de sensibilização central (SC) e qualidade do sono. RESULTADOS: Os grupos não apresentaram alterações no LDP quando comparados em relação às diferentes versões do equipamento (p<0,05) nos quatro locais analisados. Além disso, os grupos não mostraram diferenças em relação aos dias de avaliação ou entre si quanto a severidade e interferência de dor e presença de sinais e sintomas de SC. O grupo controle indicou uma qualidade de sono ruim (p=0,0173) e manteve-se pior que as pessoas com amputação. CONCLUSÃO: As versões do equipamento não alteraram o LDP nas áreas analisadas. Os grupos não apresentaram diferença entre si, sugerindo que o equipamento promoveu respostas semelhantes, ou seja, não foi evidenciada uma alteração de sensibilidade nas regiões que possuem maior contato com elementos de estabilização e descarga de peso dos equipamentos.

RELIABILITY OF THE ISOMETRIC DYNAMOMETER IN CONTROL, PARAPLEGIC, AND AMPUTEE INDIVIDUALS.

Objective: To determine the Intraclass Correlation Coefficient (ICC), Standard Error of Measurement (SEM), Minimum Detectable Change (MDC), and the Minimum Clinically Important Difference (MCID) of the isometric measurements of muscle strength of trunk extension and of flexion and knee extension at maximum contraction in healthy, paraplegic, and amputee individuals, by using an isometric dynamometer with a belt for stabilization. Methods: An observational cross-sectional study was carried out to assess the reliability of a portable isometric dynamometer in the trunk extension and flexion and knee extension movements of each group. Results: In all measurements, ICC ranged from 0.66 to 0.99, SEM from 0.11 to 3.73 kgf, and MDC from 0.30 to 10.3 kgf. The MCID of the movements ranged from 3.1 to 4.9 kgf in the amputee group and from 2.2 to 3.66 kgf in the paraplegic group. Conclusion: The manual dynamometer demonstrated good intra-examiner reliability, presenting moderate and excellent ICC results. Thus, this device is a reliable resource to measure muscle strength in amputees and paraplegics. Level of Evidence II, Cross-Sectional Study.

Objetivo: Determinar o coeficiente de correlação intraclasse (CCI), o erro padrão da medida (EPM), a mínima mudança detectável (MMD) e a mínima mudança clinicamente importante (MMCI) das medidas isométricas de força muscular da extensão de tronco e da flexão e extensão de joelho em contração máxima de indivíduos saudáveis, paraplégicos e amputados, usando um dinamômetro isométrico com cinto para estabilização. Métodos: Foi realizado um estudo observacional transversal para avaliar a confiabilidade de um dinamômetro portátil isométrico nos movimentos de extensão de tronco e de flexão e extensão de joelho de cada grupo. Resultados: Em todas as medidas o CCI apresentou uma variação de 0,66 a 0,99, o EPM de 0,11 a 3,73 kgf e a MMD de 0,30 a 10,3 kgf. A MMCI dos movimentos variou de 3,1 a 4,9 kgf no grupo de amputados e de 2,2 a 3,66 kgf no grupo de paraplégicos. Conclusão: O dinamômetro manual demonstrou boa confiabilidade intraexaminador, com variação de CCI de moderada à excelente, apresentando-se como um recurso confiável para mensurar força muscular de amputados e paraplégicos. Nível de Evidência II, Estudo Observacional Transversal.

Modulation of brain waves in spinal cord injury patients with pain: cross-sectional analysis / Modulação de ondas cerebrais em pacientes com lesão medular e dor: uma análise transversal / Modulación de ondas cerebrales en pacientes con lesión de médula espinal y dolor: un análisis transversal

ABSTRACT: Objective: This study aimed to describe the encephalographic electrical rhythm pattern of the Alpha wave in patients with traumatic spinal cord injury in the thoracic spine. Methodology: This is a cross-sectional observational study conducted from January to March 2022. A total of 20 patients with traumatic spinal cord injury were included in the study and divided into two groups, with pain symptoms and without pain symptoms. Both groups were submitted for evaluation for population characterization, identification of the presence of pain and the possible presence of signs and symptoms of central sensitization and quantitative electroencephalographic examination. Results: Comparing them, it was possible to observe a reduction of 38.7% (2.69µV; 95%CI 1.28 to 4.09) in the Alpha 2 wave (10-12 Hz) in the group with pain symptoms. This alteration was identified in the parietal lobe, mainly in PZ. Conclusion: We observed a selective reduction of Alpha 2 waves, mainly in the parietal region (PZ), in spinal cord injury patients with pain compared to spinal cord injury patients without pain. Level of Evidence III; Diagnostic Studies.

RESUMO: Objetivo: O objetivo deste estudo foi descrever o padrão do ritmo eletroencefalográfico da onda Alfa em pacientes com lesão medular traumática na coluna torácica. Metodologia: Trata-se de um estudo observacional transversal, realizado no período de janeiro a março de 2022. No total 20 pacientes com lesão medular traumática foram incluídos no estudo e divididos em dois grupos, com sintomas de dor e sem sintomas de dor. Ambos os grupos foram submetidos a avaliação para caracterização populacional, identificação de presença de dor e possível presença de sinais e sintomas de sensibilização central e ao exame Eletroencefalográfico quantitativo. Resultados: Ao compará-los foi possível constatar uma redução de 38,7% (2.69µV; 95%IC 1,28 to 4.09) da onda Alfa 2 (10-12 Hz) do grupo com sintomas de dor. Essa alteração foi identificada no lobo parietal, principalmente em PZ. Conclusão: Observamos uma redução seletiva de ondas Alfa 2, principalmente na região parietal (PZ), em pacientes com lesão medular com dor em relação aos pacientes lesão medular sem dor. Nível de Evidência III; Estudo diagnóstico.

RESUMEN: Objetivo: El objetivo de este estudio fue describir el patrón del ritmo electroencefalográfico de la onda Alfa en pacientes con lesión medular traumática en la columna torácica. Metodología: Se trata de un estudio observacional transversal realizado entre enero y marzo de 2022. En total, se incluyeron 20 pacientes con lesión medular traumática en el estudio, divididos en dos grupos, uno con síntomas de dolor y otro sin síntomas de dolor. Ambos grupos fueron sometidos a evaluación para caracterización poblacional, identificación de presencia de dolor y posible presencia de signos y síntomas de sensibilización central, así como al examen electroencefalográfico cuantitativo. Resultados: Al compararlos, se pudo constatar una reducción del 38,7% (2,69 µV; IC del 95%: 1,28 a 4,09) en la onda Alfa 2 (10-12 Hz) del grupo con síntomas de dolor. Esta alteración se identificó en el lóbulo parietal, principalmente en PZ. Conclusión: Observamos una reducción selectiva de las ondas Alfa 2, principalmente en la región parietal (PZ), en pacientes con lesión medular y dolor en comparación con pacientes con lesión medular sin dolor. Nivel de Evidencia III; Estudios de diagnósticos.

Reliability of the isometric dynamometer in control, paraplegic, and amputee individuals / Confiabilidade do dinamômetro isométrico em indivíduos controle, paraplégicos e amputados

ABSTRACT Objective: To determine the Intraclass Correlation Coefficient (ICC), Standard Error of Measurement (SEM), Minimum Detectable Change (MDC), and the Minimum Clinically Important Difference (MCID) of the isometric measurements of muscle strength of trunk extension and of flexion and knee extension at maximum contraction in healthy, paraplegic, and amputee individuals, by using an isometric dynamometer with a belt for stabilization. Methods: An observational cross-sectional study was carried out to assess the reliability of a portable isometric dynamometer in the trunk extension and flexion and knee extension movements of each group. Results: In all measurements, ICC ranged from 0.66 to 0.99, SEM from 0.11 to 3.73 kgf, and MDC from 0.30 to 10.3 kgf. The MCID of the movements ranged from 3.1 to 4.9 kgf in the amputee group and from 2.2 to 3.66 kgf in the paraplegic group. Conclusion: The manual dynamometer demonstrated good intra-examiner reliability, presenting moderate and excellent ICC results. Thus, this device is a reliable resource to measure muscle strength in amputees and paraplegics. Level of Evidence II, Cross-Sectional Study.

RESUMO Objetivo: Determinar o coeficiente de correlação intraclasse (CCI), o erro padrão da medida (EPM), a mínima mudança detectável (MMD) e a mínima mudança clinicamente importante (MMCI) das medidas isométricas de força muscular da extensão de tronco e da flexão e extensão de joelho em contração máxima de indivíduos saudáveis, paraplégicos e amputados, usando um dinamômetro isométrico com cinto para estabilização. Métodos: Foi realizado um estudo observacional transversal para avaliar a confiabilidade de um dinamômetro portátil isométrico nos movimentos de extensão de tronco e de flexão e extensão de joelho de cada grupo Resultados: Em todas as medidas o CCI apresentou uma variação de 0,66 a 0,99, o EPM de 0,11 a 3,73 kgf e a MMD de 0,30 a 10,3 kgf. A MMCI dos movimentos variou de 3,1 a 4,9 kgf no grupo de amputados e de 2,2 a 3,66 kgf no grupo de paraplégicos. Conclusão: O dinamômetro manual demonstrou boa confiabilidade intraexaminador, com variação de CCI de moderada à excelente, apresentando-se como um recurso confiável para mensurar força muscular de amputados e paraplégicos. Nível de Evidência II, Estudo Observacional Transversal.

Immediate effect of an orthostatic device in amputees who practice physical activity / Efecto inmediato de un dispositivo ortostático en amputados que practican actividad física / Efeito imediato de um dispositivo ortostático em amputados praticantes de atividade física

ABSTRACT Introduction: Lower limb amputation affects mainly economically active young adults, causing great socio-economic impact due to impaired work capacity, socialization, and quality of life. Thus, the use of orthostatic devices could make reintegration of the individual back into the work environment possible. Objective: To evaluate the immediate effect of using a postural elevation device on physiological parameters and plantar pressure levels in amputees who practice physical activity. Methods: Sociodemographic and perceived sleep quality data were collected from 14 adults of both sexes with lower limb amputations, who practice physical activity. The participants were placed in postural elevation equipment for a period of 90 minutes with monitoring of physiological parameters such as blood pressure, heart rate, and oxygen saturation. Parameters related to the autonomic nervous system and plantar pressure levels were also evaluated. Data were also collected during recovery at 15- and 30-minute intervals after using the device. Data analysis was performed using two-way ANOVA or a mixed-effects model with Sidak's multiple comparisons test. Results: For all cardiovascular parameters (p>0.05) analyzed, the activation level of the autonomic nervous system (p>0.05), and plantar pressure (p>0.05), no evidence of differences was observed during use of the orthostatic device in all evaluated periods. Conclusion: The use of postural elevation equipment for 90 minutes does not generate, as an immediate effect, changes in physiological parameters and postural control in amputees who practice physical activity. Level of evidence II; Therapeutic studies - investigation of treatment results. Clinical relevance statement .

RESUMEN Introducción: La amputación de miembros inferiores afecta mayoritariamente a jóvenes adultos económicamente activos, lo que provoca un gran impacto socioeconómico debido al compromiso de la capacidad laboral, la socialización y la calidad de vida. Así, el uso de dispositivos ortostáticos permitiría la reinserción del individuo en el entorno laboral. Objetivo: Evaluar el efecto inmediato del uso de un dispositivo de elevación postural en los parámetros fisiológicos y en los niveles de presión plantar de amputados que practican actividad física. Métodos: Se recogieron datos sociodemográficos y la percepción de la calidad del sueño de 14 adultos de ambos sexos con amputaciones de miembros inferiores, practicantes de actividad física. Los participantes fueron colocados en equipos de elevación postural durante 90 minutos con monitoreo de parámetros fisiológicos como presión arterial, frecuencia cardíaca, saturación y sistema nervioso autónomo, además de los niveles de presión plantar. También se recopilaron datos durante la recuperación a intervalos de 15 y 30 minutos después de usar el dispositivo. El análisis de datos se realizó mediante ANOVA two-way o un modelo de efectos mixtos con la prueba de comparaciones múltiples de Sidak, p < 0,05. Resultados: Para todos los parámetros cardiovasculares (p> 0,05) analizados, el nivel de activación del sistema nervioso autónomo (p> 0,05) y la presión plantar (p> 0,05), no se observaron diferencias a lo largo del uso del dispositivo ortostático en todos los períodos evaluados. Conclusión: El uso del equipo de elevación postural durante 90 minutos no genera, como efecto inmediato, cambios en los parámetros fisiológicos y en el control postural de los amputados que practican actividades físicas. Nivel de evidencia II; Estudios terapéuticos: investigación de los resultados de los tratamientos. Declaración de relevancia clínica .

RESUMO Introdução: A amputação de membros inferiores afeta em sua maioria adultos jovens economicamente ativos, o que ocasiona grande impacto socioeconômico devido ao comprometimento da capacidade laboral, socialização e qualidade de vida. Desta forma, as utilizações de dispositivos ortostáticos possibilitariam a reinserção do indivíduo no ambiente de trabalho. Objetivo: Avaliar o efeito imediato da utilização de um dispositivo de elevação postural nos parâmetros fisiológicos e nos níveis da pressão plantar de amputados praticantes de atividade física. Métodos: Foram coletados os dados sociodemográficos e a percepção da qualidade do sono de 14 adultos de ambos os sexos com amputações de membro inferior que praticam atividade física. Os participantes foram colocados em um equipamento de elevação postural durante 90 minutos com monitorização dos parâmetros fisiológicos como pressão arterial, frequência cardíaca, saturação e sistema nervoso autônomo, além dos níveis da pressão plantar. Os dados também foram coletados durante a recuperação (15 e 30 minutos depois do uso do dispositivo). A análise dos dados foi realizada pela ANOVA two-way ou modelo de efeitos mistos com teste de comparações múltiplas de Sidak, p < 0,05. Resultados: Para todos os parâmetros cardiovasculares (p > 0,05) analisados, nível de ativação sistema nervoso autônomo (p > 0,05) e pressão plantar (p > 0,05) não foram observadas diferenças ao longo do uso do dispositivo ortostático em todos os períodos avaliados. Conclusão: A utilização do equipamento de elevação postural por 90 minutos não gera como efeito imediato, alterações nos parâmetros fisiológicos e no controle postural de amputados praticantes de atividade física. Nível de evidência II; Estudos terapêuticos: investigação dos resultados dos tratamentos Declaração de relevância clínica.

The Use of Orthostatic Device for 90 Minutes Does Not Change Cardiovascular and Biomechanical Parameters of Patients with Spinal Cord Injury.

Background: Changes in autonomic function are often caused by spinal cord injuries, which lead to limited orthostatic positioning in these patients. Objective: To investigate the cardiovascular and biomechanical parameters during 90 min of postural elevation equipment usage comparing spinal cord injury and healthy subjects. Methods: A device was used that allowed patients with spinal cord injuries to remain in an orthostatic posture for 90 min. During this period, the physiological parameters were measured every 15 min. Cardiovascular parameters (heart rate, oxygen saturation, blood pressure, and autonomic nervous system) and biomechanical parameters of the plantar pressure distribution were evaluated. For blood pressure, heart rate, oxygen saturation, and autonomic nervous system, a two-way analysis of variance was applied. The mixed-effect model was applied to plantar pressure. The significance level was set at p < 0.05 for all statistical analyses. Results: No differences were observed between the groups in systolic blood pressure (F = 0.07), diastolic blood pressure (F = 0.14), heart rate (F = 0.56), and oxygen saturation (F = 0.23) at any of the time intervals throughout the experiment (p > 0.05). No statistical difference was observed in the mean plantar pressure values between the groups (p = 0.35) during the period in which they remained in the orthostatic position. Conclusion: The present study showed the absence of differences between spinal cord injury patients and control participants using the orthostatic device in terms of cardiovascular and biomechanical parameters over 90 min.

People with amputation and musculoskeletal pain show reduced electrical activity of Alpha brain waves: cross-sectional study / Pessoas com amputação e relato de dor musculoesquelética apresentam redução da atividade elétrica das ondas cerebrais Alpha: estudo transversal

ABSTRACT BACKGROUND AND OBJECTIVES: Amputation causes associated clinical conditions, such as musculoskeletal pain (MSP), which causes sufering and interferes in the patient's life. Therefore, the development of diagnostic methods to measure these changes are encouraged, such as quantitative electroencephalography (qEEG). The aim of the study was to compare the electroencephalographic pattern of Alpha brain waves (8-12 Hz) in individuals with amputation with MSP unrelated to phantom limb pain and without MSP. METHODS: Study conducted between January and February 2022, with 20 people with amputations divided equally into two groups (Control Group and with MSP report not related to the amputated segment). Pain intensity and interference were evaluated (Brief Pain Inventory), as well as the presence of central sensitization (CS) signs and symptoms (CS inventory) and qEEG (assessed with eyes open) with spectral analysis to measure the amplitude of the Alpha wave, standardized Low Resolution brain electromagnetic Tomography (sLORETA) to identify the differential generation site of said wave and Phase-Amplitude Coupling (PAC) to identify its interaction with fast waves. RESULTS: People with amputation and MSP reported mild pain severity and interference. No diference was identifed between individuals regarding the presence of signs and symptoms associated with CS. Regarding electrical activity, the Pain Group had lower Alpha wave amplitude compared to the Control Group (p=0.01), specifically in the parieto-occipital region. CONCLUSION: People with amputation and reported MSP unrelated to the phantom limb had reduced electrical activity (activation) of the Alpha brain wave in the sensory cortex.

RESUMO JUSTIFICATIVA E OBJETIVOS: A amputação acarreta quadros clínicos associados, como a dor musculoesquelética (DME), que causa sofrimento e interfere na vida do paciente. Por isso, o desenvolvimento de métodos diagnósticos para mensurar essas alterações são incentivados, como a eletroencefalografia quantitativa (EEGq). O objetivo deste estudo foi comparar o padrão eletroencefalográfico das ondas cerebrais Alpha (8-12 Hz) em pessoas com amputação com DME não relacionada à dor no membro fantasma e sem DME. MÉTODOS: Estudo realizado entre janeiro e fevereiro de 2022, com 20 pessoas com amputação divididas igualmente em dois grupos (Grupo Controle e Grupo com relato de DME não relacionada ao segmento amputado). Avaliou-se intensidade e interferência da dor (Inventário Breve de Dor), presença de sinais e sintomas de sensibilização central (SC) (Inventário de SC) e a EEGq (avaliados com olhos abertos) com análise espectral para medir a amplitude da onda Alpha, standardized Low Resolution brain electromagnetic Tomography (sLORETA) para identificar o local de geração diferencial da referida onda e Phase-Amplitude Coupling (PAC) para identificar sua interação com ondas rápidas. RESULTADOS: As pessoas com amputação e relato de DME apresentaram baixa gravidade e interferência de dor. Não se identificou diferença entre os indivíduos em relação a presença de sinais e sintomas associados à SC. Quanto à atividade elétrica, o Grupo Dor apresentou menor amplitude da onda Alpha em relação ao Grupo Controle (p=0,01), especificamente na região parieto-occipital. CONCLUSÃO: Pessoas com amputação e relato de DME não relacionada ao membro fantasma apresentaram atividade elétrica (ativação) reduzida da onda cerebral Alpha no córtex sensorial.

Causal mechanisms of a scapular stabilization intervention for patients with subacromial pain syndrome: a secondary analysis of a randomized controlled trial.

BACKGROUND: Causal mediation analysis is one way to bridge this gap by exploring the causal pathways of a given intervention. The aim of this study was to assess whether scapular motion, position, and periscapular muscle strength are mediators for pain and shoulder disability outcomes following a scapular stabilization intervention for patients with subacromial pain syndrome. METHODS: Sixty patients were randomized into two groups: scapular stabilization or periscapular strengthening exercises. The intervention consisted of three sessions per week for 8 weeks. The primary outcome measures were pain and disability and the following outcome measures were considered as potential mediators: scapular motion, scapular position, periscapular muscle strength, age, duration of symptoms, and side of the complaint. A model-based inference approach with bootstrap simulations was used to estimate the average causal mediation effect, average direct effect, and the average total effect from the data of a randomized clinical trial that evaluated the effect of adding scapular stabilization exercises to a scapulothoracic strengthening program in people with subacromial pain syndrome. RESULTS: The results demonstrated that none of the putative mediators were influenced by the intervention. However, muscle strength of serratus anterior, upper, middle, and lower trapezius muscles was associated with shoulder disability. CONCLUSION: Scapular kinematic and periscapular muscle strength did not mediate the effect of scapular stabilization exercises on shoulder pain or disability scores in subjects with subacromial pain syndrome. Muscle strength of serratus anterior, upper, middle and lower trapezius were associated with shoulder disability scores at 8-weeks follow-up.

Therapeutic approach to pain-related fear and avoidance in adults with chronic musculoskeletal pain: an integrative review and a roadmap for clinicians / Abordagem terapêutica do medo relacionado à dor e da evitação em adultos com dor musculoesquelética crônica: revisão integrativa e roteiro para o clínico

ABSTRACT BACKGROUND AND OBJECTIVES: Cognitive-behavioral approaches have been applied in patients with chronic pain as a treatment strategy to reduce symptoms and disability, since fear related to pain, kinesiophobia and catastrophizing may be important psychosocial barriers for recovery. The relevance of fear and avoidance behaviors in the development and maintenance of processes of disabling chronic pain is already well established in the scientific literature. CONTENTS: The cognitive-behavioral approach defines the relationship of pain with defense behaviors and the contribution to functional disability, assisting clinicians to recognize signs of these defensive behaviors during practice, as well as providing strategies for clinical practice, highlighting approaches that can be used, such as pain neuroscience education and exposure therapy. Therefore, it is possible to provide a guide to facilitate the implementation of these concepts in clinical practice for the management of chronic musculoskeletal pain, helping clinicians to ground the theories of fear learning and avoidance in the context of pain and to address the psychosocial factors of patients who present an association between pain and movement. CONCLUSION: Pain-related fear and catastrophic thoughts influence pain intensity and functional disability. Recognizing pain within a multidimensional context assists in establishing targeted approaches. Cognitive-behavioral approaches based on exposure therapy focus on the view beyond body structures.

RESUMO JUSTIFICATIVA E OBJETIVOS: As abordagens cognitivo-comportamentais têm sido aplicadas em pacientes com dor crônica como estratégia de tratamento para redução de sintomas e incapacidade, uma vez que o medo relacionado a dor, a cinesiofobia e a catastrofização podem representar barreiras psicossociais importantes para a recuperação. A relevância do medo e de comportamentos de evitação no desenvolvimento e manutenção de processos de dor crônica incapacitante já é bem estabelecida na literatura científica. CONTEÚDO: A abordagem cognitivo-comportamental fundamenta a relação da dor com comportamentos de defesa e a contribuição para a incapacidade funcional, auxiliando os clínicos a reconhecer sinais destes comportamentos defensivos na prática, além de fornecer estratégias para prática clínica, destacando as abordagens que podem ser utilizadas, como a educação em neurociência da dor e as terapias de exposição. Dessa maneira, é possível fornecer um guia para facilitar a implementação desses conceitos na prática clínica para a abordagem de pessoas com dor musculoesquelética crônica, ajudando os clínicos a fundamentar as teorias de aprendizado do medo e evitação no contexto da dor e a lidar com fatores psicossociais dos pacientes que apresentam associação entre dor e movimento. CONCLUSÃO: O medo relacionado à dor e os pensamentos catastróficos influenciam na intensidade da dor e na incapacidade funcional. O reconhecimento da dor dentro do contexto multidimensional auxilia no estabelecimento de abordagens direcionadas. As abordagens cognitivo-comportamentais baseadas em terapia de exposição têm como enfoque o olhar para além das estruturas do corpo.

Effect of conscious abdominal contraction on the activation of periscapular muscles in individuals with subacromial pain syndrome.

BACKGROUND: Synergism between shoulder and trunk muscles seems to be effective to increase periscapular muscle activation in asymptomatic subjects. The influence of conscious contraction of the abdominal muscles has not yet been studied in non-athlete subjects with pain. The study aimed to investigate the effect of the instruction for conscious activation of the abdominal muscles on the activity of the scapulothoracic muscles during shoulder exercises in subjects with subacromial pain syndrome. METHOD: Thirty subjects with unilateral pain (mean age 52 ± 11 years) participated in this study. Three isometric and five dynamic exercises for the scapulothoracic muscles were assessed. The group without instruction just repeated the exercises, while the instruction group was evaluated before and after conscious abdominal training. The linear mixed model analysis was used to compare the muscle activation between groups. FINDINGS: Differences between groups after the conscious abdominal contraction for activation of middle and lower trapezius on the symptomatic side in the "Full can"(p = 0.03; effect size:0.92 middle trapezius); (p = 0.02; effect size:0.96 lower trapezius) and "Knee Push" (p = 0.01; effect size:0.75 lower trapezius). For asymptomatic side, the exercises "External Rotation Kneeling" (p = 0.04; effect size: 0.81 lower trapezius); (p = 0.00; effect size: 2.09 serratus anterior), "Knee Push" (p = 0.04; effect size:1.24 serratus anterior) and "Wall Slide" (p = 0.01; effect size: 1.03 serratus anterior). INTERPRETATION: Conscious contraction of the abdominal muscle immediately alter the activation of the serratus anterior muscle during closed kinetic chain exercises on the asymptomatic side and increased activation of trapezius on the symptomatic side during shoulder open kinetic chain exercise.

Effects of adding scapular stabilization exercises to a periscapular strengthening exercise program in patients with subacromial pain syndrome: A randomized controlled trial.

BACKGROUND: Interventions focused on the scapula should be considered in treating subacromial pain syndrome (SAPS). However, the effect of adding scapular stabilization exercises to protocols of progressive strengthening of the shoulder complex muscles on a non-multimodal approach remains unclear. OBJECTIVE: To investigate the effect of adding scapular stabilization exercises, emphasizing retraction, and depression of the scapula, to a progressive periscapular strengthening protocol on disability, pain, muscle strength, and ROM in patients with SAPS. DESIGN: Randomized, controlled, superiority trial, prospectively registered, two-arms, parallel, blind assessor, blind patient, and allocation concealment. METHODS: Sixty patients with SAPS were randomly allocated into two groups: Periscapular Strengthening (PSG) or Scapular Stabilization (SSG) exercises. The interventions were performed three times a week for eight weeks. The primary outcome function and secondary outcomes (Pain, kinesiophobia, global perceived effect, satisfaction with treatment, the range of motion, scapula position and muscle strength) were measured in the baseline, four weeks, eight weeks (end of intervention) and 16 weeks after baseline. Shoulder pain and function were assessed by the Brazilian version of the Shoulder Pain and Disability Index (SPADI-Br). RESULTS: A total of 60 patients were included and randomized to PSG (n = 30) or SSG (n = 30) from March 2016 to June 2017. There were no between group differences in primary and secondary outcomes at any time point. CONCLUSION: The inclusion of the isolated scapular stabilization exercises, emphasizing retraction and depression of the scapula, to a progressive general periscapular strengthening protocol did not add benefits to self-reported shoulder pain and disability, muscle strength, and ROM in patients with SAPS. TRIAL REGISTRATION: ClinicalTrials.gov.

Acute effect of flexible bar exercise on scapulothoracic muscles activation, on isometric shoulder abduction force and proprioception of the shoulder of individuals with and without subacromial pain syndrome.

BACKGROUND: There is currently no evidence about the effects of neuromuscular facilitation after the use of a flexible bar on scapulothoracic muscle activity in individuals with subacromial pain syndrome. The study aimed to assess the acute effect of flexible bar exercise and subjective fatigue on scapulothoracic muscle activity, shoulder proprioception, and shoulder abduction force of subjects with and without symptoms of subacromial pain syndrome. METHOD: Fifty subjects with subacromial pain syndrome and 50 asymptomatic subjects were recruited. A short-term flexible bar exercise was performed to assess the vibratory stimulus effects on scapulothoracic muscle activity, shoulder proprioception, and shoulder abduction force, and the same exercise was performed on a long-term basis to assess the effects of subjective fatigue. The activities of the serratus anterior and three portions of the trapezius muscle were investigated using surface electromyography during arm elevation. The active joint position sense error was assessed to determine shoulder proprioception using a laser pointer. A hand-held dynamometer was used to assess isometric shoulder abduction force. FINDINGS: No significant intra-group differences were found in scapulothoracic muscle activity, as well as in active joint position sense error and isometric shoulder abduction force in either group (p >0.05). INTERPRETATION: The acute effects of flexible bar exercise and subjective fatigue were unable to influence scapulothoracic muscle activation, shoulder joint position sense, and isometric shoulder abduction force in subacromial pain syndrome.

Confiabilidade intra e interexaminador do questionário Perfil do Estilo de Vida Individual (PEVI) em indivíduos com dor musculoesquelética / Confiabilidad intra e interevaluador del cuestionario Perfil de Estilo de Vida Individual (PEVI) en sujetos con dolor musculoesquelética / Intra- and inter-rater reliability of the Individual Lifestyle Profile (ILP) questionnaire for individuals with musculoskeletal pain

RESUMO O objetivo do estudo foi testar todas as propriedades de confiabilidade do Perfil do Estilo de Vida Individual (PEVI) em pacientes com dor musculoesquelética. Participaram desse estudo 105 pacientes com dor musculoesquelética, recrutados de um serviço público de fisioterapia de nível secundário. O PEVI foi aplicado pelo Examinador 1 na avaliação inicial e pelo Examinador 2 após uma hora. Após três a sete dias da avaliação inicial, o Examinador 1 reaplicou o PEVI. O PEVI e seus componentes apresentaram consistência interna de 0,27 a 0,61 e valores de confiabilidade intra e interexaminador de moderado a excelente (CCI=0,68 a 0,90) e de moderado a quase perfeito (K=0,59 a 0,83). A porcentagem de concordância foi de 61% a 98%, o EPM do PEVI foi de 4,1 pontos e a MMD foi de 5,7 pontos. Concluímos que o PEVI é um instrumento confiável para avaliar o estilo de vida de pacientes com dor musculoesquelética.

RESUMEN El objetivo del estudio fue poner a prueba todas las propiedades de confiabilidad del Perfil de Estilo de Vida Individual (PEVI) en pacientes con dolor musculoesquelético. Participaron en este estudio 105 pacientes con dolor musculoesquelético, provenientes de servicios públicos de fisioterapia de nivel secundario. El evaluador 1 aplicó el PEVI en la evaluación inicial, y el evaluador 2 lo aplicó después de una hora. Después de 3 a 7 días de evaluación inicial, el evaluador 1 reaplicó el PEVI. La consistencia interna del PEVI y sus componentes fue de 0,27 a 0,61; y los valores de confiabilidad intra e interevaluador fueron de moderada a excelente (CCI=0,68 a 0,9), y de moderada a casi perfecta (K=0,59 a 0,83). El porcentaje de concordancia fue de entre un 61% y un 98%, el EPM del PEVI fue de 4,1 puntos, y el CMD fue de 5,7 puntos. Se concluye que el PEVI es un instrumento confiable para evaluar los estilos de vida de pacientes con dolor musculoesquelético.

ABSTRACT The aim of this study was to test all the reliability properties of the Individual Lifestyle Profile (ILP) in patients with musculoskeletal pain. A total of 105 patients with musculoskeletal pain participated in this study after being recruited from a public secondary physical therapy care. ILP was applied by Rater 1 at the initial assessment and by Rater 2 after one hour. After three to seven days of the initial assessment, Rater 1 reapplied ILP. ILP and its components showed internal consistency from 0.27 to 0.61 and intra- and inter-rater reliability values from moderate to excellent (ICC=0.68 to 0.90) and from moderate to almost perfect (K=0.59 to 0.83). Percent agreement was 61% to 98%, the SEM of ILP was 4.1 points and the MDC was 5.7 points. We conclude that ILP is a reliable instrument to assess the lifestyle of patients with musculoskeletal pain.

Immediate effect of scapula-focused exercises performed with kinematic biofeedback on scapular kinematics in individuals with subacromial pain syndrome.

BACKGROUND: Given the changes in the patterns of muscular activation and scapular movement in individuals with subacromial pain syndrome, the use of neuromuscular training has been considered in rehabilitation protocols. There is currently no evidence of the effects of the use of three-dimensional (3D) kinematic biofeedback on individuals with subacromial pain syndrome. This study aimed to determine the immediate effect of scapular motor control exercises using 3D kinematic biofeedback on the scapular kinematics, inter-segment coordination and pain of individuals with subacromial pain syndrome. METHOD: The kinematics of the scapulothoracic joint of 26 subjects with subacromial pain syndrome were assessed in the movement arm elevation and lowering in the sagittal plane before and after performance of three scapula-focused exercises using kinematic biofeedback. The individuals were familiarized with the selected exercises to acquire a greater scapular posterior tilt, while kinematic biofeedback, with visual and auditory stimuli, was used in real time. Scapular kinematics, pain, and subjective perception of exertion were the pre- and post-test measures. FINDINGS: In the movement of arm elevation and lowering, no differences were found in scapular tilt and on coordination between the segments pre- and post-test and the effect size was considered small. INTERPRETATION: Our results demonstrate that the performance of scapula-focused exercises using kinematic biofeedback does not cause immediate changes in the magnitude of scapular movement. However, inter-segmental coordination showed evidence of changes for scapular tilt in the lowering of the arm and internal rotation in the elevation and the lowering of the arm in individuals with subacromial pain syndrome.

Scapular-focused exercise treatment protocol for shoulder impingement symptoms: Three-dimensional scapular kinematics analysis.

BACKGROUND: The present study aimed to describe the effects of a periscapular strengthening and neuromuscular training protocol in three-dimensional scapular kinematics and resting positioning in participants with shoulder impingement symptoms. Self-reported function was also evaluated. METHOD: The study group comprised 50 subjects with shoulder impingement syndrome (control group, n=25; treatment group, n=25). The treatment group underwent 8weeks of neuromuscular training and periscapular strengthening. Scapular kinematics was measured using an electromagnetic tracking device, and the Brazilian version of the Shoulder Pain and Disability Index (SPADI-Br) questionnaire was carried out before and after the treatment. FINDINGS: In the resting position, treated subjects had lower (p<0.01) internal rotation of the scapula compared to the control group, with a large effect size (2.4). On the coronal plane, the treated group had less scapular upward rotation (p<0.01) and less internal rotation (p<0.05), with a medium effect size. On the sagittal plane, the treated group had less internal rotation (p<0.01), less upward rotation (p<0.05), and less scapular anterior tilt (p<0.01), with a medium effect size. On the scapular plane, a reduction in upward rotation (p<0.01) after the intervention was observed, with a large effect size. Moreover, a reduction in the total SPADI-Br score was found, with a mean difference of 32.4 [24.4; 40.4] points (p<0.01) after the implementation of the protocol and a large effect size (2.0). INTERPRETATION: The results provide biomechanical support for the clinical rationale for indicating therapeutic exercises focused on the periscapular muscles to improve scapular dynamics.

Electromyography and asymmetry index of masticatory muscles in undergraduate students with temporomandibular disorders

Aim: To compare the electromyographic activity and the asymmetry index among degrees of severity of temporomandibular disorders (TMD). Methods: Surface electromyography (EMG) of the right and left masseter and temporalis muscles was performed in 126 undergraduate students at rest and at maximal voluntary contraction. Three measurements were performed for five seconds of maximal contraction and mandibular rest. The degree of temporomandibular dysfunction was identified according to the Fonseca anamnestic index. The analysis of the asymmetry index for two pairs of muscles during maximal voluntary contraction was based on the asymmetry index proposed by Naeije, McCarrol and Weijs (1989). Results: 48.41% of the sample had mild TMD, followed by volunteers without TMD (26.98%), moderate TMD (19.05%) and severe (5.56%). The survey results show absence of correlation between the Fonseca anamnestic index and electromyographic activity at rest and at maximal voluntary contraction in undergraduate students in both muscles (p>0.05) and the asymmetry index did not differ between the analyzed groups. Conclusions: For the population of undergraduate students, there is no evidence that the presence and severity of TMD influence the EMG activity of masseter and temporalis muscles and the muscle asymmetry index at rest and maximal voluntary contraction.

Measurement properties of the Brazilian version of the Penn Shoulder Score (PSS-Brazil): reliability, validity, and responsiveness.

STUDY DESIGN: Clinical measurement. OBJECTIVES: To determine the reliability, validity, and responsiveness of the Brazilian version of the Penn Shoulder Score (PSS-Brazil) in patients with shoulder dysfunctions. BACKGROUND: Several questionnaires assessing shoulder dysfunctions are available in Brazil, but the measurement properties of most of them, such as the PSS, have not yet been tested. METHODS: Internal consistency, measurement error, construct validity, and floor and ceiling effects were evaluated in 62 patients, 36 of whom completed the questionnaire at baseline and after 2 to 7 days to assess test-retest reliability. Responsiveness was determined with 50 patients who completed the questionnaire at an initial visit and after 4 weeks of physical therapy. RESULTS: The PSS-Brazil displayed acceptable internal consistency, with a Cronbach alpha of .92. Test-retest reliability was excellent, with an intraclass correlation coefficient of 0.95; the standard error of measurement and minimal detectable change were 12.8 and 14.4 points, respectively. A high correlation was obtained between the PSS and the Shoulder Pain and Disability Index (0.96) and the Disabilities of the Arm, Shoulder and Hand questionnaire (0.86). There was moderate correlation between the PSS and its subscales and the pain and function subscales of the Medical Outcomes Study 36-Item Short-Form Health Survey (0.40-0.68). There was high responsiveness, with an effect size of 0.95 and standardized response mean of 1.13 for patients with improvement of shoulder dysfunction, and adequate area under the curve of 0.81. No floor or ceiling effects were observed. CONCLUSION: The PSS-Brazil is a reliable, valid, and responsive measure for assessing patients with shoulder dysfunction.