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.

How does my pain look like? Characterizing dysmenorrhea-related pain using the body map / Como se parece a minha dor? Caracterizando a dor relacionada à dismenorreia utilizando o mapa corporal da dor

ABSTRACT BACKGROUND AND OBJECTIVES: Primary dysmenorrhea (PD) is a common gynaecological disorder characterized by pain in the abdominal region without pelvic disease. Evidence suggests that PD-related pain may not be restricted to the pelvis region, hence body mapping could be helpful in assessing the subjective location, intensity, and distribution of pain areas in women with PD. The objective of this study was to characterize dysmenorrhea-related pain location and intensity using body map. METHODS: We conducted a web-based cross-sectional study for adult women to self-report menstrual pain during three menstrual cycles. Each participant was instructed through a messaging application to paint the body map after printing it and rank their pain according to the 11-point Numerical Rating Scale. RESULTS: Seventy-three women (24.1 ± 3.0 years) participated in the study. A considerable proportion of participants reported pain in the lower abdomen (90.4%) and other body areas, such as the lower back (82.1%), head (54.6%), breasts (32.9%), upper abdomen (31.5%), and legs (28.8%). CONCLUSION: Our findings revealed that women with PD also present pain outside the uterine referral area during their period. In this way, body maps can help healthcare professionals to record specific regions of pain and track changes or patterns in the location or intensity pain during menses, helping to determine treatment strategies appropriate to the individual needs of each woman with PD. Therefore, we strongly recommend the clinical use of the self-report body map to evaluate menstrual pain and help health providers to improve PD symptoms in this population.

RESUMO JUSTIFICATIVA E OBJETIVOS: A dismenorreia primária (DP) é um distúrbio ginecológico comum caracterizado por dor na região abdominal sem doença pélvica. Evidências sugerem que a dor relacionada à DP pode não estar restrita à região da pelve, portanto, o mapeamento corporal pode ser útil para avaliar a localização subjetiva, a intensidade e a distribuição das áreas de dor em mulheres com DP. O objetivo deste estudo foi caracterizar a localização e a intensidade da dor relacionada à dismenorreia por meio do mapa corporal. MÉTODOS: Conduziu-se um estudo transversal baseado na web para mulheres adultas para autorrelato de dor menstrual durante três ciclos menstruais. Cada participante foi instruído por meio de um aplicativo de mensagens a pintar o mapa corporal após imprimi-lo e classificar sua dor de acordo com a Escala de Avaliação Numérica de 11 pontos. RESULTADOS: Setenta e três mulheres (24,1±3,0 anos) participaram do estudo. Uma proporção considerável de participantes relatou dor na parte inferior do abdômen (90,4%) e em outras áreas do corpo, como a parte inferior das costas (82,1%), cabeça (54,6%), mamas (32,9%), parte superior do abdômen (31,5%) e pernas (28,8%). CONCLUSÃO: Os presentes achados revelaram que mulheres com DP também apresentam dor fora da área de referência uterina durante o período menstrual. Dessa forma, os mapas corporais podem ajudar os profissionais de saúde a registrar regiões específicas de dor e rastrear mudanças ou padrões na localização ou intensidade da dor durante a menstruação, ajudando a determinar estratégias de tratamento adequadas às necessidades individuais de cada mulher com DP. Portanto, recomenda-se fortemente o uso clínico do mapa corporal de autorrelato para avaliar a dor menstrual e ajudar os profissionais de saúde a melhorar os sintomas de DP nessa população.

Pain interference, neuropathic-like symptoms, pain intensity, and symptoms of central sensitization negatively impact individual's disability after Chikungunya fever: cross-sectional study / Interferência da dor, sintomas do tipo neuropático, intensidade da dor e sintomas de sensibilização central afetam negativamente a capacidade funcional dos indivíduos após a febre Chicungunha: estudo transversal

ABSTRACT BACKGROUND AND OBJECTIVES: Particular pain features, such as pain interference, neuropathic-like symptoms, and central sensitization (CS) symptoms may be present in patients with Chikungunya fever and lead to functional limitations. The present study aimed to assess the association between pain characteristics and the disability in participants affected by Chikungunya fever in the chronic phase. METHODS: A cross-sectional study was conducted with 36 participants who filled out a sociodemographic, pain characteristics (pain interference - Brief Pain Inventory, neuropathic-like symptoms - PainDETECT Questionnaire, and CS-related signs and symptoms - Central Sensitization Inventory) and disability (Health Assessment Questionnaire) questionnaires. The Spearman correlation test (rho) verified the relationship between the outcomes. RESULTS: Most of the participants were female (77%), with a mean age of 43 years. Twenty-seven (75%) participants presented nociceptive pain and 11 (30%) had central sensitization symptoms. There was a high positive correlation between the presence of neuropathic-like symptoms and disability (rho=0.71; p<0.001) and pain intensity and disability (rho=0.76; p<0.001). A moderate positive correlation was found between the central sensitization symptoms and disability (rho=0.51; p=0.002). Moreover, there is a low positive correlation between pain interference in an individual's life and disability (rho=0.34; p=0.041). CONCLUSION: Patients in chronic phase of Chikungunya fever revealed mild pain intensity and predominance of nociceptive pain. Pain interference, neuropathic-like symptoms, and central sensitization symptoms negatively impact individual's disability after Chikungunya fever.

RESUMO JUSTIFICATIVA E OBJETIVOS: Características particulares da dor, como interferência da dor, sintomas do tipo neuropático e sintomas de sensibilização central (SC), podem estar presentes em pacientes com febre Chicungunha e levar a limitações funcionais. O presente estudo teve como objetivo avaliar a correlação entre as características da dor e a capacidade funcional em participantes acometidos pela febre Chicungunha na fase crônica. MÉTODOS: Foi realizado um estudo transversal com 36 participantes que preencheram questionários sociodemográficos, de características de dor (interferência da dor - Inventário Breve de Dor, sintomas do tipo neuropático - questionário PainDETECT, e sinais e sintomas relacionados à SC - Inventário de Sensibilização Central) e de capacidade funcional (Health Assessment Questionnaire). O teste de correlação de Spearman (rho) verificou a relação entre os desfechos. RESULTADOS: A maioria dos participantes era do sexo feminino (77%), com média de idade de 43 anos. Vinte e sete (75%) participantes apresentaram dor nociceptiva e 11 (30%) apresentaram sintomas de sensibilização central. Houve alta correlação positiva entre a presença de sintomas do tipo neuropático e capacidade funcional (rho=0,71; p<0,001) e intensidade da dor e capacidade funcional (rho=0,76; p<0,001). Foi encontrada uma correlação positiva moderada entre os sintomas de sensibilização central e a capacidade funcional (rho=0,51; p=0,002). Além disso, há uma correlação positiva baixa entre a interferência da dor na vida do indivíduo e a capacidade funcional (rho=0,34; p=0,041). CONCLUSÃO: Pacientes em fase crônica da febre Chicungunha apresentaram intensidade de dor leve e predominância de dor nociceptiva. A interferência da dor, os sintomas do tipo neuropático e os sintomas de sensibilização central afetam negativamente a capacidade funcional do indivíduo após a febre Chicungunha.

Investigating the hypoalgesic effects of spinal manipulative therapy using hidden pain conditioning and positive expectation in patients with chronic low back pain: protocol for a randomised controlled trial.

INTRODUCTION: Placebo effects are responses capable of modulating pain and influencing treatment response. Two mechanisms are commonly related to placebo effects: expectations and conditioning. However, the research in this field is focused on laboratory studies with healthy participants. This study aims to identify whether a conditioning procedure with positive induced expectations about spinal manipulative therapy (SMT) will result in greater hypoalgesic effects in adults with chronic low back pain (CLBP) in a clinical trial design. METHODS AND ANALYSIS: This trial will enrol 264 patients with non-specific CLBP, aged 18-60 years. Patients will undergo a calibration test to determine the thermal pain threshold for the hidden pain conditioning procedure. Afterward, they will be randomised to one of the three groups: hidden pain conditioning with positive induced expectations-group one (G1); positive expectations-group two (G2) and neutral expectations-group three (G3). Patients will receive instructions to manipulate the expectations. The pretreatment heat pain test will be performed before the SMT and after the intervention patients will undergo again the heat pain intensity test. However, only patients in G1 will receive hidden pain conditioning to reinforce the association between SMT and pain intensity reduction. All patients will undergo five sessions of SMT. The outcomes will be assessed immediately after the last session and at the 6 weeks and 3-month follow-ups. All statistical analyses will be conducted following intention-to-treat principles, and the treatment effects will be determined with linear mixed models. ETHICS AND DISSEMINATION: The Federal University of São Carlos approved this research (Process n° 52359521.1.0000.5504). All participants will give written informed consent. Dissemination of the results will include publications in peer-reviewed journals and presentations at conferences. If positive expectations and classical conditioning improve outcomes, it may support the administration of such intervention. TRIAL REGISTRATION NUMBER: NCT05202704.

Relationship between the Widespread Pain Index and the PainMAP software for pain sites measurement in patients with Widespread Pain / Relação entre o Índice de Dor Espalhada e o software PainMAP para medida de localização da dor em pacientes com dor espalhada

ABSTRACT BACKGROUND AND OBJECTIVES: Identifying pain sites is essential to managing patients with Widespread Pain. Several instruments have been developed, including pain drawings, a grid system and computerized methods. However, it is not yet known whether the Widespread Pain Index matches an automated method (painMAP) for quantifying the number of pain areas. Therefore, this study aimed to identify the relationship between the Widespread Pain Index and the painMAP software to measure pain sites in participants with Widespread Pain. METHODS: A pre-planned secondary analysis of data collected from 311 patients with musculoskeletal pain was conducted. The Widespread Pain Index and the painMAP software assessed pain sites. Spearman's correlation coefficient investigated the correlation between the Widespread Pain Index and the painMAP software. RESULTS: A total of 98 participants with Widespread Pain were included in this study. Most participants were female (67; 83.7%), with a mean age of 57,7±11,5 years, mean height of 1.6 (0.1) meters and mean weight of 73.2 (11.8) kilograms. The mean pain intensity was 6.7 (2.0), and the pain duration was 92.3 (96.3) months. The mean number of pain sites in the Widespread Pain Index was 10.1 (3.7), and in the painMAP software, it was 11.7 (8.8). A weak positive correlation (rho = 0.26, 95% CI 0.45 to 0.04, p = 0.022) between the Widespread Pain Index and the painMAP software was found. CONCLUSION: The Widespread Pain Index and the painMAP software showed a weak correlation for assessing pain sites in participants with Widespread Pain.

RESUMO JUSTIFICATIVA E OBJETIVOS: A identificação dos locais de dor é um aspecto essencial no manejo de pacientes com Dor Espalhada. Vários instrumentos foram desenvolvidos, incluindo desenhos de dor, um sistema de grade e métodos computadorizados. No entanto, ainda não se sabe se o Índice de Dor Espalhada coincide com um método automatizado (painMAP) para quantificar o número de áreas de dor. Portanto, este estudo teve como objetivo identificar a relação entre o Índice de Dor Espalhada e o painMAP para medir as áreas doloridas em participantes com esse quadro de dor. MÉTODOS: Uma análise secundária pré-planejada de dados coletados de 311 pacientes com dor musculoesquelética foi realizada. O Índice de Dor Espalhada e o painMAP avaliaram as áreas de dor. O coeficiente de correlação de Spearman foi utilizado para investigar a correlação entre o Índice de Dor Espalhada e o software painMAP. RESULTADOS: Um total de 98 participantes com Dor Espalhada foram incluídos neste estudo. A maioria dos participantes era do sexo feminino (67;83,7%), com média de idade de 57,7±11,5 anos, média de altura de 1,6 (0,1) metros e média de peso de 73,2 (11,8) quilogramas. A média de intensidade da dor foi de 6,7 (2,0) e da duração da dor de 92,3 (96,3) meses. O número médio de áreas de dor no Índice de Dor Espalhada foi de 10,1(3,7) e no software painMAP foi de 11,7 (8,8). Uma correlação positiva fraca (rho=0,26, IC de 95% 0,45-0,04, p=0,022) entre o Índice de Dor Espalhada e o painMAP foi encontrada. CONCLUSÃO: O Índice de Dor Espalhada e o painMAP mostraram correlação positiva fraca para avaliar as áreas de dor em participantes com dor espalhada.

Feasibility, Usability, and Implementation Context of an Internet-Based Pain Education and Exercise Program for Chronic Musculoskeletal Pain: Pilot Trial of the ReabilitaDOR Program.

BACKGROUND: Internet-based self-management programs and telerehabilitation initiatives have increased and have been extensively used for delivering health care in many areas. These programs overcome common barriers that patients face with traditional face-to-face health care, such as travel expenditures, lack of time, and high demand on the public health system. During the COVID-19 pandemic, this mode of web-based health care delivery had become more popular. However, there is still a lack of studies testing this mode of delivery in low- and middle-income countries. To gain a better understanding of the context, feasibility, and factors involved in the implementation of a web-based program, pilot and implementation studies are necessary. These studies can better inform whether a strategy is feasible, acceptable, and adequate for its purposes and for optimizing resource allocation. OBJECTIVE: This study aims to evaluate the feasibility, usability, and implementation context of a self-management internet-based program based on exercises and pain education (ReabilitaDOR) in people with chronic musculoskeletal pain and to compare this program with a program using only a web-based self-management booklet. METHODS: The study design was a parallel pilot study of a prospectively registered, assessor-blinded, 2-arm randomized controlled trial with economic evaluation. This study was performed using waiting lists of physiotherapy and rehabilitation centers and advertisements on social media networks. The participants were 65 patients with chronic musculoskeletal pain aged between 18 and 60 years. The effects of an 8-week telerehabilitation program based on exercises and pain education (intervention group) were compared with those of a program based only on a web-based self-management booklet (control group). The main outcome measures were implementation outcomes of patients' perceptions of acceptability, appropriateness, feasibility, and usability of the program and the societal costs and feasibility of the main trial at 8-week posttreatment follow-up. Adverse events were also analyzed. RESULTS: In total, 56 participants were analyzed at the 8-week follow-up. The intervention group showed responses with a mean of 4.5 (SD 0.6) points for acceptability, 4.5 (SD 0.5) points for appropriateness, and 4.5 (SD 0.6) points for feasibility measured on a 1 to 5 scale. All patients in the intervention group showed satisfactory responses to the system usability outcome. There is satisfactory evidence for the feasibility of the main trial. For costs related to the interventions, health care, patients, and loss of productivity at 8 weeks, we found a total expenditure of US $278.30 per patient in the intervention group and US $141.52 per patient in the control group. No adverse events were reported during the intervention period. CONCLUSIONS: We found that the ReabilitaDOR program is feasible, appropriate, and acceptable from the users' implementation perspective. This system was considered usable by all the participants, and the main trial seemed feasible. Cost data were viable to be collected, and the program is likely to be safe. TRIAL REGISTRATION: ClinicalTrials.gov NCT04274439; https://clinicaltrials.gov/ct2/show/NCT04274439.

Patients with fibromyalgia present different pain phenotypes compared to patients with generalized pain / Pacientes com fibromialgia apresentam fenótipos de dor diferentes em comparação com pacientes com dor generalizada

ABSTRACT BACKGROUND AND OBJECTIVES Fibromyalgia and generalized pain represent a global health problem and are distinct musculoskeletal disorders, but there is an overlap in the clinical presentation between these conditions. However, no study has compared pain characteristics between patients with fibromyalgia and patients with generalized pain. Therefore, the present study aimed to compare pain characteristics and functional limitation of patients with fibromyalgia and patients with generalized pain. METHODS A pre-planned secondary analysis of data collected from 311 patients with musculoskeletal pain was performed. Pain characteristics included pain intensity, pain duration, pain area, symptoms of central sensitization, presence of neuropathic-like symptoms, and the conditioned pain modulation. The Patient-Specific Functional Scale assessed functional limitation. RESULTS 98 patients with generalized pain were identified, being 58 (59.18%) classified in the fibromyalgia group and 40 (40.82%) classified in the generalized pain group. Significant differences were found between groups for Widespread Pain Index, Symptom Severity Scale, and Polysymptomatic Distress Scale. Participants with fibromyalgia presented higher values of pain intensity (fibromyalgia = 7.29±2.07, generalized pain = 6.05±2.47; p=0.008), neuropathic-like symptoms (fibromyalgia = 17.74±7.62, generalized pain = 12.17±6.41; p=0.005), and symptoms of central sensitization (fibromyalgia = 51.32±14.26, generalized pain = 33.97±14.65; p<0.001), when compared with generalized pain. There was no significant difference in conditioned pain modulation and functional limitation between groups. CONCLUSION Patients with fibromyalgia exhibited unfavorable pain characteristics, including pain intensity, neuropathic-like symptoms, and symptoms of central sensitization compared to patients with generalized pain. However, pain duration, functional limitation, and conditioned pain modulation did not present meaningful differences between groups.

RESUMO JUSTIFICATIVA E OBJETIVOS Fibromialgia e dor generalizada representam um problema de saúde global e são distúrbios musculoesqueléticos distintos, mas há uma sobreposição na apresentação clínica entre essas condições. Entretanto, nenhum estudo comparou as características da dor entre os pacientes com estas condições. Portanto, o presente estudo teve como objetivo comparar as características da dor e a limitação funcional de pacientes com fibromialgia e dor generalizada. MÉTODOS Realizou-se uma análise secundária pré-planejada de dados coletados de 311 pacientes com dor musculoesquelética. As características da dor incluíram: intensidade da dor, duração da dor, área da dor, sintomas de sensibilização central, presença de sintomas neuropáticos e a modulação condicionada da dor. A escala de funcionalidade específica do paciente avaliou a limitação funcional. RESULTADOS Identificou-se 98 pacientes com dor generalizada, sendo 58 (59,18%) classificados no grupo de fibromialgia e 40 (40,82%) no grupo de dor generalizada. Diferenças significativas foram encontradas entre os grupos para o índice de dor generalizada, escala de severidade de sintomas e escala polissintomática de sofrimento. Os participantes com fibromialgia apresentaram maiores valores de intensidade da dor (fibromialgia = 7,29±2,07, dor generalizada = 6,05 ± 2,47; p=0,008), sintomas neuropáticos (fibromialgia = 17,74±7,62, dor generalizada = 12,17 ± 6,41; p=0,005) e sintomas de sensibilização central (fibromialgia = 51,32±14,26, dor generalizada = 33,97±14,65; p<0,001), quando comparados à dor generalizada. Não houve diferença significativa na modulação condicionada da dor e na limitação funcional entre os grupos. CONCLUSÃO Pacientes com fibromialgia exibiram características de dor desfavoráveis, incluindo intensidade de dor, sintomas neuropáticos e sintomas de sensibilização central, quando comparados a pacientes com dor generalizada. Entretanto, a duração da dor, a limitação funcional e a modulação condicionada da dor não apresentaram diferença significativa entre os grupos.

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.

Cross-cultural adaptation of the painDETECT questionnaire into Brazilian Portuguese.

BACKGROUND AND OBJECTIVES: Neuropathic pain is common in the general population worldwide and Brazil. The painDETECT questionnaire is a notable instrument for screening on neuropathic pain. A Brazilian version of the painDETECT is necessary to broaden the possibilities of identification of neuropathic pain in the Brazilian population for the proper diagnosis and treatment. The current study aimed to perform the translation and cross-cultural adaptation of the painDETECT into the Portuguese language of Brazil. METHODS: A cross-cultural adaptation study was conducted in 11 stages according to standard procedures. Descriptive statistics were performed. The internal consistency of the questionnaire was assessed using Cronbach's Alpha test (α). RESULTS: Four translators, 10 experts, and 30 patients participated in the study. The expert committee adapted five out of nine items (item 2, 3, 6, 8, and 10) to the Brazilian context. The pretesting phase showed good internal consistency (α = 0.74) for the nine items, including the pain pattern and the body chart domains. The Cronbach's α of the instrument with seven descriptor items of pain was 0.83. CONCLUSIONS: The painDETECT was cross-culturally adapted into a Brazilian context and can be used to identify neuropathic components in pain of Brazilian patients. CLINICAL IMPLICATIONS: PainDETECT is available for Brazilians to identify neuropathic components in pain.

Two-point discrimination and judgment of laterality in individuals with chronic unilateral non-traumatic shoulder pain.

BACKGROUND: Cortical representation of the painful body region may be disrupted in several chronic pain conditions. The two-point discrimination test (TPDT) and the Left/Right Judgement Task (LRJT) have been used to identify changes in the cortical body schema in several chronic pain conditions. However, it is unclear if these changes are present for all chronic pain mechanisms. OBJECTIVES: To investigate the integrity of the body schema of the painful shoulder in patients with chronic unilateral nociceptive shoulder pain. METHODS: The sample consisted of 52 individuals with chronic unilateral nociceptive shoulder pain. The TPDT was measured over the anterosuperior and lateral regions of both shoulders using a staircase method. Participants also performed judgment tests of shoulder and foot laterality. The comparison of the TPDT and LRJT was performed using the linear regression model with mixed effects. RESULTS: There was no difference in TPDT in the anterosuperior and lateral regions when comparing the symptomatic and asymptomatic shoulders. There was no difference in the LRJT accuracy and response time between the symptomatic and asymptomatic shoulders. No differences were observed when comparing LRJT variables from symptomatic shoulder and foot. CONCLUSION: Therefore, results do not provide clear evidence of altered body schema in chronic nociceptive unilateral shoulder pain. This suggest that alterations in body representations may depend on the primary pain mechanism.

Perceived injustice and pain intensity in patients with chronic musculoskeletal pain: cross-sectional study / Injustiça percebida e a intensidade de dor em pacientes com dor musculoesquelética crônica: estudo transversal

ABSTRACT BACKGROUND AND OBJECTIVES: To date, there is no information on the perception of injustice in patients with musculoskeletal pain in Brazil. The present study evaluated the perception of injustice in individuals with chronic musculoskeletal pain and its association with pain intensity. METHODS: Information regarding the participants' identification and experience of injustice was gathered using the Injustice Experience Questionnaire. Pain intensity data was collected through the numerical pain rating scale. The descriptive data analysis was performed. Pearson's correlation test was used to verify the association between pain intensity and perceived injustice. The level of significance adopted was alpha=95%. RESULTS: The study was composed of 110 patients with chronic musculoskeletal pain being 94 women with a mean age of 62.9±14.9 years. The mean perceived injustice was 19.45±11.68 out of a total of 48 points. The mean pain intensity was 6.39±2.48. The correlation between pain intensity and perceived injustice was r=0.23 [CI (95%) = 0.04 to 0.40; p=0.008]. The correlation between blame and unfairness and pain intensity was r=0.16 (p=0.08). For the severity and irreparability domain the correlation was r=0.28 (p=0.003). CONCLUSION: Patients with chronic musculoskeletal pain presented low levels of perceived injustice. The total score and the severity and irreparability domain of the perceived injustice instrument showed a weak correlation with pain intensity.

RESUMO JUSTIFICATIVA E OBJETIVOS: Até o presente momento, não existem dados sobre a percepção de injustiça em pessoas com dor musculoesquelética no Brasil. O presente estudo avaliou a percepção de injustiça em pessoas com dor musculoesquelética crônica e a sua associação com a intensidade de dor. MÉTODOS: Foram coletadas informações referentes à identificação e experiência de injustiça utilizando o Questionário de Injustiça Percebida e a intensidade da dor utilizando a escala numérica da dor. Foi realizada a análise descritiva dos dados. O teste de correlação de Pearson foi utilizado para se verificar a correlação entre a intensidade de dor e a injustiça percebida. O nível de significância adotado foi de alfa=95%. RESULTADOS: Foram incluídos 110 pacientes com dor musculoesquelética crônica, sendo 94 mulheres com média de idade de 62,9±14,9 anos. A média da injustiça percebida foi de 19,45±11,68 de um total de 48 pontos. A intensidade média de dor foi 6,39±2,48. A correlação entre a intensidade de dor e a injustiça percebida foi de r=0,23 [IC (95%) = 0,04 a 0,40; p=0,008]. A correlação entre culpa e injustiça e a intensidade de dor foi de r=0,16 (p=0,08). Para o domínio gravidade e irreparabilidade foi de r=0,28 (p=0,003). CONCLUSÃO: Os pacientes com dor musculoesquelética crônica apresentam baixos níveis de injustiça percebida. A pontuação total e o domínio de gravidade e irreparabilidade do instrumento de injustiça percebida apresentaram correlação fraca com a intensidade de dor.

Evaluation of an on-line resource for pain education by health professionals and people with musculoskeletal pain / Avaliação de um instrumento on-line para educação em dor por profissionais de saúde e pacientes com dor musculoesquelética

ABSTRACT BACKGROUND AND OBJECTIVES: Educational interventions delivered over the Internet have the potential to facilitate access to precise information for people with pain. The aim of this study was to evaluate the opinion of health care professionals and the perception of pain comprehension and the behavior modification of patients with musculoskeletal pain related to the on-line resource "Caminho da Recuperação" (Path of Recovery). METHODS: Health care professionals and patients with musculoskeletal pain were selected through the Internet. The professionals judged the quality of the instrument's content considering the concepts of pain education based on neuroscience using a Likert scale. People with pain used an 11-point scale (the higher the value, the greater the perception) to evaluate how the on-line resource contributed to change. Data was presented through descriptive analysis. RESULTS: The samples were composed of 81 health care professionals and 170 individuals with pain. In the group composed of people with musculoskeletal pain, the perception of the pain comprehension presented the highest mean value (6.7 / 10) and the return to physical activity the lowest mean value (5.2 / 10). CONCLUSION: The on-line resource was rated as excellent by health care professionals in all items. People with pain have noticed a greater shift towards comprehending pain, behavior and negative thoughts. The lowest perceptions occurred in terms of return to daily activity, exercises and improving relationships.

RESUMO JUSTIFICATIVA E OBJETIVOS: As intervenções educativas via Internet apresentam potencial para facilitar o acesso a informações adequadas para as pessoas com dor. O objetivo deste estudo foi avaliar a opinião de profissionais de saúde e a percepção da compreensão da dor e a modificação de comportamento de pacientes com dor musculoesquelética relacionadas ao instrumento on-line Caminho da Recuperação. MÉTODOS: Participaram do estudo profissionais de saúde e pacientes com dor musculoesquelética selecionados pela Internet. Os profissionais julgaram a qualidade do conteúdo do instrumento considerando os conceitos da educação em dor com base em neurociência usando uma escala Likert. As pessoas com dor utilizaram uma escala de 11 pontos (quanto maior o valor, maior a percepção) para avaliar o quanto o instrumento contribuiu para mudança. Os dados foram apresentados por meio da análise descritiva. RESULTADOS: Participaram 81 profissionais de saúde e 170 pessoas com dor. Para as pessoas com dor musculoesquelética a percepção do entendimento sobre a dor apresentou o maior valor médio (6,7/10) e o retorno para a atividade física o menor valor médio (5,2/10). CONCLUSÃO: O instrumento foi avaliado como excelente por profissionais de saúde em todos os itens. As pessoas com dor perceberam maior mudança para o entendimento da dor, o comportamento e os pensamentos negativos. As menores percepções ocorreram para retorno à atividade diária, aos exercícios e melhora dos relacionamentos.

Comparison of the effect of two virtual reality stimuli on pressure pain sensitivity and autonomic response / Comparação do efeito de dois estímulos de realidade virtual na sensibilidade de dor a pressão e na resposta autonômica

ABSTRACT BACKGROUND AND OBJECTIVES: Virtual reality can have a modulatory action on pain and the autonomic nervous system. This study sought to verify the effect of two different VR stimuli on the pressure pain threshold and heart rate variability. METHODS: Healthy volunteers were randomized into two groups of virtual reality, nature and control. The pressure pain threshold was measured pre and post stimulus and heart rate variability measurements were collected pre, during and after virtual reality stimuli. The exploratory data analysis was performed. The t test was used to compare pressure pain threshold. For the differences in heart rate variability measurements, the linear mixed model was used. The level of significance adopted was 95%. RESULTS: The virtual reality nature group was composed of 19 participants with mean age of 22.7±4.72 years and the control virtual reality group was composed of 22 participants with mean age of 21.13±2.42 years. The virtual reality nature group showed an increase in the pressure pain threshold after virtual reality and the mean difference was -0.41 [CI (95%)= -0.74 to -0.07; p=0.01]. There was no difference in heart rate variability parameters measured during and after virtual reality stimulation. CONCLUSION: The group that was exposed to a virtual reality stimulus with scenes from nature showed an increase in the pressure pain threshold. There was no difference in heart rate variability between groups.

RESUMO JUSTIFICATIVA E OBJETIVOS: A realidade virtual pode ter ação modulatória sobre a dor e o sistema nervoso autônomo. O objetivo deste estudo foi verificar o efeito de dois estímulos diferentes de realidade virtual sobre o limiar de dor a pressão e a variabilidade da frequência cardíaca. MÉTODOS: Os voluntários sadios foram randomizados para dois grupos de realidade virtual, natureza e controle. Foram coletadas as medidas do limiar de dor a pressão pré e pós-estímulo e as medidas da variabilidade da frequência cardíaca pré, durante e após o estímulo de realidade virtual. Foi realizada a análise exploratória dos dados. O teste t foi utilizado para comparar o limiar de dor a pressão. Para as diferenças nas medidas da variabilidade da frequência cardíaca utilizou-se o modelo linear misto. O nível de significância adotado foi de 95%. RESULTADOS: O grupo realidade virtual natureza foi composto por 19 participantes com média de idade de 22,7±4,72 anos e o grupo realidade virtual controle foi composto por 22 participantes com média de idade de 21,13±2,42 anos. O grupo realidade virtual natureza apresentou um aumento do limiar de dor a pressão após realidade virtual e a diferença entre as médias foi de -0,41 [IC (95%)=-0,74 a -0,07; p=0,01]. Não houve diferença para os parâmetros da variabilidade da frequência cardíaca mensurados durante e após o estímulo de realidade virtual. CONCLUSÃO: O grupo que foi exposto a um estímulo de realidade virtual com cenas da natureza apresentou um aumento do limiar de dor. Não foram observadas diferenças na variabilidade da frequência cardíaca entre os grupos.

Intensity of pain, disability and psychosocial factors in women with chronic pelvic pain: cross-sectional study / Intensidade da dor, incapacidade funcional e fatores psicossociais em mulheres com dor pélvica crônica: um estudo transversal

ABSTRACT BACKGROUND AND OBJECTIVES: Chronic pelvic pain can be considered one of the main causes of morbidity and functional disability in women. The influence of psychosocial factors on chronic pelvic pain has been little explored in the literature. This study sought to characterize the profile of chronic pelvic pain in women, the presence of psychosocial factors and the association with pain and disability. METHODS: This cross-sectional study included women with chronic pelvic pain. Data on pain, disability and psychosocial factors was collected using specific questionnaires. Analysis of frequency, central tendency and dispersion were presented. Pearson's correlation test was used to verify the correlation between pain, disability and psychosocial factors. The statistical significance was set as alpha=95%. RESULTS: The study consisted of 25 women, with a mean age of 45.4 years. The mean pain intensity at the time of the assessment was 4.76±3.39. The mean disability was 4.01±2.32. Anxiety presented a mean of 7.16±3.36 and stress 7.04±3.16. The level of disability had a negative correlation with pain intensity (r = -0.474; p=0.017), with the pain severity domain (r=-0.566; p=0.003) and with kinesiophobia (r = -0.550; p=0.001). CONCLUSION: Women with chronic pelvic pain had moderate levels of pain intensity and disability. The psychosocial factors with the highest mean score were anxiety and stress. The intensity of pain and disability were correlated with each other and with kinesiophobia.

RESUMO JUSTIFICATIVA E OBJETIVOS: A dor pélvica crônica pode ser considerada uma das principais causas de morbidade e incapacidade funcional para as mulheres. A influência dos fatores psicossociais na dor pélvica crônica foi pouco explorada na literatura. O objetivo deste estudo foi caracterizar o perfil da dor pélvica crônica em mulheres, bem como buscar a presença de fatores psicossociais e a associação com dor e incapacidade. MÉTODOS: Estudo transversal que incluiu mulheres com dor pélvica crônica. Os dados referentes da dor, incapacidade e os fatores psicossociais foram coletados utilizando questionários específicos. Foram apresentadas as análises de frequência, tendência central e dispersão dos dados. O teste de correlação de Pearson foi utilizado para verificar a correlação entre dor, incapacidade e fatores psicossociais. O valor de significância estatística adotado foi de alfa=95%. RESULTADOS: O estudo foi composto por 25 mulheres, com média de idade de 45,4 anos. A intensidade de dor média no momento da avaliação foi de 4,76±3,39. A média de incapacidade foi de 4,01±2,32. A ansiedade apresentou média de 7,16±3,36 e estresse 7,04±3,16. O nível de limitação funcional teve correlação negativa com a intensidade da dor (r= -0,474; p=0,017), com o domínio gravidade da dor (r=-0,566; p=0,003) e com cinesiofobia (r= -0,550; p=0,001). CONCLUSÃO: As mulheres com doença pélvica crônica apresentaram níveis moderados de intensidade de dor e limitação funcional. Os fatores psicossociais com maior pontuação média foram a ansiedade e estresse. A intensidade de dor e o nível de limitação funcional estiveram correlacionados entre si e com a cinesiofobia.

The Reliability and Concurrent Validity of PainMAP Software for Automated Quantification of Pain Drawings on Body Charts of Patients With Low Back Pain.

BACKGROUND: The assessment of painful areas through printed body charts is a simple way for clinicians to identify patients with widespread pain in primary care. However, there is a lack in the literature about a simple and automated method designed to analyze pain drawings in body charts in clinical practice. PURPOSE: To test the inter- and intra-rater reliabilities and concurrent validity of software (PainMAP) for quantification of pain drawings in patients with low back pain. METHODS: Thirty-eight participants (16 [42.10%] female; mean age 50.24 [11.54] years; mean body mass index 27.90 [5.42] kg/m2 ; duration of pain of 94.35 [96.11] months) with a current episode of low back pain were recruited from a pool of physiotherapy outpatients. Participants were instructed to shade all their painful areas on a body chart using a red pen. The body charts were digitized by separate raters using smartphone cameras and twice for one rater to analyze the intra-rater reliability. Both the number of pain sites and the pain area were calculated using ImageJ software (reference method). The PainMAP software used image processing methods to automatically quantify the data from the same digitized body charts. RESULTS: The reliability analyses revealed that PainMAP has excellent inter- and intra-rater reliabilities to quantify the number of pain sites (intraclass correlation coefficient [ICC]2,1 : 0.998 [95% confidence interval (CI) 0.996 to 0.999]; ICC2,1 : 0.995 [95% CI 0.991 to 0.998]) and the pain area [ICC2,1 : 0.998 (95% CI 0.995 to 0.999); ICC2,1 : 0.975 (95% CI 0.951 to 0.987)], respectively. The standard error of the measurement was 0.22 (4%) for the number of pain sites and 0.03 cm2 (4%) for the pain area. The Bland-Altman analyses revealed no substantive differences between the 2 methods for the pain area (mean difference = 0.007 [95% CI -0.053 to 0.067]). CONCLUSION: PainMAP software is reliable and valid for quantification of the number of pain sites and the pain area in patients with low back pain.

Pain curriculum for graduation in Physiotherapy in Brazil / Currículo em dor para graduação em Fisioterapia no Brasil

ABSTRACT BACKGROUND AND OBJECTIVES: To introduce the curriculum in Pain for Graduation in Physiotherapy, suggesting its use for academic training in Brazil. CONTENTS: Considering that physiotherapists should be prepared to engage in the health care professional team assisting patients with different kinds of pain understanding the role of each professional, a group of physiotherapists with academic and clinical experience in pain treatment has developed, after consensus, this curriculum of pain for physiotherapy, which highlights the role of this professional in the health care team and the development of a therapeutic relationship with patients, favoring patients' autonomy and education, as well as the strategies for pain evaluation and management. CONCLUSION: The specific content of this pain curriculum can be integrated into different programs/courses, using the most adequate structure and educational method with regard to professional needs and their demands. Physical therapy, pain and models of academic training in health are discussed.

RESUMO JUSTIFICATIVA E OBJETIVOS: Apresentar e divulgar o currículo em dor para graduação em Fisioterapia, sugerindo sua utilização para formação acadêmica no Brasil. CONTEÚDO: Considerando que o fisioterapeuta deve ser preparado para integrar a equipe profissional de cuidados de pacientes com diferentes tipos de dor, compreendendo a atuação de cada profissional, um grupo de fisioterapeutas com experiência acadêmica e clínica no tratamento da dor elaborou, após consenso, o currículo nuclear de dor para fisioterapia, o qual destaca o papel desse profissional na equipe e na construção de uma relação terapêutica com os pacientes, favorecendo autonomia e educação do paciente, além das estratégias para avaliação e manuseio da dor. CONCLUSÃO: O conteúdo específico deste currículo de dor pode ser integrado em diferentes programas/cursos, usando a estrutura e o método educacional mais adequado no que tange às necessidades profissionais locais e as suas demandas. Discute-se a fisioterapia, a dor e modelos de formação acadêmica em saúde.

Transcultural adaptation into Portuguese of an instrument for pain evaluation based on the biopsychosocial model / Adaptação transcultural para a língua portuguesa de um instrumento de orientação para avaliação da dor

Abstract Introduction: Pain is an individual experience influenced by multiple interacting factors. The "biopsychosocial" care model has gained popularity in response to growing research evidence indicating the influence of biological, psychological, and social factors on the pain experience. The implementation of this model is a challenge in the practice of the health professional. Objective: To perform the transcultural adaptation of the SCEBS method into Brazilian Portuguese. Methods: The instrument was translated and applied to 50 healthy subjects and 50 participants with non-specific chronic pain in the spine. The process of cross-cultural adaptation included the following steps: transcultural adaptation, content analysis of the scale, pre-test, revision, back-translation review, cross-cultural adaptation, revised text correction and final report. Results: The translated and adapted 51-item Portuguese version of the SCEBS method produced an instrument called SCEBS-BR. In the assessment by the target population, 50 adult users of the Brazilian Unified Health System answered the questionnaire and showed good understanding of the instrument on the verbal rating scale. Conclusion: The SCEBS-BR was proved to be easily understandable, showing good semantic validation regardless of schooling level or age, and can be considered adequate for clinical use.

Resumo Introdução: A dor é uma experiência individual influenciada por aspectos multifatoriais. O modelo de cuidado "biopsicossocial" adquiriu popularidade em resposta à crescente evidência de pesquisas indicando a influência de fatores biológicos, psicológicos e sociais na experiência de dor. A implantação deste modelo é um desafio na prática do profissional de saúde. Objetivo: Realizar a adaptação transcultural do Método SCEBS para o português do Brasil. Métodos: O instrumento foi traduzido e aplicado a 50 indivíduos saudáveis e 50 pacientes com dor crônica não específica na coluna. O processo de adaptação transcultural incluiu as seguintes etapas: adaptação transcultural, análise de conteúdo da escala, pré-teste, revisão, revisão de back-translation, adaptação transcultural, correção de texto revisada e relatório final. Resultados: A versão portuguesa traduzida e adaptada de 51 itens do método SCEBS produziu um instrumento denominado SCEBS-BR. Na avaliação da população-alvo, 50 usuários adultos do Sistema Único de Saúde responderam ao questionário e mostraram boa compreensão do instrumento na escala de classificação verbal. Conclusão: O SCEBS-BR demonstrou ser facilmente compreensível, mostrando boa validação semântica independentemente do nível de escolaridade ou idade e considerado adequado para o uso clínico.