Low-level laser therapy and static stretching exercises for patients with knee osteoarthritis: A randomised controlled trial.

OBJECTIVES: To investigate the laser effect associated with stretching exercise on pain and functionality in patients with knee osteoarthritis. DESIGN: A randomised controlled trial. SETTING: Special Rehabilitation Services. SUBJECTS: We enrolled 215 knee osteoarthritis patients (430 knees were treated). INTERVENTION: Group Laser + Stretch (n = 43), Placebo + Stretch (n = 43), Stretch (n = 43), Laser (n = 43) and Control (n = 43) were treated with active laser and stretching exercises; placebo laser and stretching exercises; stretching exercises; active laser, and control, respectively. Interventions were conducted 3 times a week for 8 or 11 weeks. MAIN OUTCOME MEASURES: The primary outcome was the change in knee pain and disability. Secondary outcomes included severity of osteoarthritis, mobility, knee range of motion, flexibility, activity, severity of osteoarthritis and medication intake for pain relief. RESULTS: The patients' average age was 63.52 (6.8) years. Pain scores at baseline and post treatment (p < 0.001) were 7.43 (2.10) and 2.79 (1.92) for group Laser + Stretch, 7.39 (1.98) and 4.47 (2.82) for group Placebo + Stretch, 6.83 (1.42) and 4.24 (2.43) for group Stretch, 6.61 (1.68) and 2.94 (2.65) for group Laser, 6.74 (1.75) and 6.47 (2.29) for group Control, respectively. Disability score at baseline and post treatment (p = 0.000237) were 12.36 (5.02) and 8.08 (4.64) for group Laser + Stretch, 12.71 (5.12) and 9.90 (4.95) for group Placebo + Stretch, 11.83 (2.77) and 7.20 (5.28) for group Stretch, 11.58 (5.59) and 8.21 (6.18) for group Laser, 11.23 (4.68) and 11.45 (4.83) for group Control, respectively. CONCLUSION: Laser therapy combined with stretching exercises improves pain during rest, activities of daily living, stiffness, muscle shortening and range of motion in patients with knee osteoarthritis.

Low back pain prevalence in Sao Paulo, Brazil: A cross-sectional study.

BACKGROUND: Low back pain (LBP) is the leading cause of disability worldwide, and the burden of LBP is expected to increase in coming decades, particularly in middle-income countries. There is a lack of large and high-quality studies investigating the prevalence of LBP in Brazil. OBJECTIVE: To estimate the point, one-year, and lifetime prevalence of non-specific LBP in adults from the city of São Paulo, Brazil. METHODS: This community-based, cross-sectional study recruited 3000 participants in flow point locations randomly selected from census sectors of São Paulo. Interviews and self-administered questionnaires were used to estimate point prevalence, one-year prevalence, and lifetime prevalence of LBP. RESULTS: The estimate of point prevalence was 9.8% (95% CI: 8.8, 11.0), one-year prevalence was 48.1% (95% CI: 46.3, 49.9), and lifetime prevalence was 62.6% (95% CI: 60.8, 64.3). One-year and lifetime prevalence were higher in females, obese people, people insufficiently active and sedentary, current smokers, people who are exposed to repetitive movements, crouched or kneeling position, people dissatisfied with their job, people a little bit or very stressed, a little bit or very anxious, and a little bit depressed, and people with good and fair or poor general health. Lifetime prevalence was also higher in people exposed to standing positions and exposure to carrying weight. CONCLUSIONS: The high point, one-year, and lifetime prevalence of LBP in Brazil indicates that there is a need for coordinated efforts from government, the private sector, universities, health workers, and civil society to deliver appropriate management of LBP in middle-income countries.

Effectiveness of Manual and Electrical Acupuncture for Chronic Non-specific Low Back Pain: A Randomized Controlled Trial.

BACKGROUND: Low back pain is a common condition that can be effectively treated by acupuncture. However, several treatment point prescriptions and further electrical needle stimulation (i.e., local acupoints, distal acupoints, and sensitized acupoints) may be used. There is an implicit yet unexplored assumption about the evidence on manual and electrical stimulation techniques. OBJECTIVE: The present study aims to identify effectiveness of electroacupuncture (EA) and manual acupuncture (MA) on pain and disability in patients with chronic nonspecific low back. METHODS: This study is a randomized controlled clinical trial. Sixty-six patients between 20 and 60 years of age with non-specific chronic low back pain experiencing low back pain lasting for at least the previous three months and ≥3 points on a 10 numerical analogic scale. Patients diagnosed with chronic LBP were assigned to receive either 12 sessions of MA or EA. The primary outcomes measurements were pain intensity on Numeric Rating Scale and disability by Roland Morris Disability Questionnaire. RESULTS: The participants reported improvements post-treatment to pain intensity and disability respectively; however, no differences between groups were observed. Regarding the secondary outcomes, we observed a between-group difference only for kinesiophobia in favor of the manual acupuncture group (difference = -4.1 points, 95% CI = -7.0 to -1.1). The results were maintained after 3 months of follow-up. CONCLUSION: The study provides evidence that EA is not superior to MA treatment. Both therapies had similar efficacy in reducing pain and disability for chronic nonspecific low back pain.

Effect of Physical Therapy in Bruxism Treatment: A Systematic Review.

OBJECTIVE: The aim of this literature review was to examine the effect of physical therapy in bruxism treatment. METHODS: The data sources used were Medline, Excerpta Medica Database, Cumulative Index of Nursing and Allied Health Literature, Physiotherapy Evidence Database, SPORTDiscus, Scientific Electronic Library Online, Web of Science, Cochrane Library, Scopus, and Literatura Latino-Americana e do Caribe em Ciências da Saúde. We included randomized and nonrandomized and controlled and noncontrolled clinical trials and interventions focused on physical therapy as treatment for sleep bruxism or awake bruxism. Two reviewers independently screened the records, examined full-text reports for compliance with the eligibility criteria, and extracted data. RESULTS: The present review found 1296 articles. We excluded 766 duplicated articles and 461 irrelevant articles and selected 69 titles to read. Forty-five of these were excluded, leading to a total of 24 that met the eligibility criteria and were included in our analysis. The articles were grouped into 7 treatment methods used in physical therapy. The treatment methods were electrotherapeutic (14 articles), cognitive-behavioral therapy (3 articles), therapeutic exercises (2 articles), acupuncture (2 articles), postural awareness (1 article), muscular relaxation (1 article), and massage (1 article). Results and conclusions, methodological quality, and quality of evidence of each study were reported. CONCLUSIONS: These results suggest very low-quality evidence that diverse methods used in physical therapy improve muscle pain and activity, mouth opening, oral health, anxiety, stress, depression, temporomandibular disorder, and head posture in individuals with bruxism. This finding is mainly a result of the poor methodological quality of most of the studies.

Muscle stretching exercises and resistance training in fibromyalgia: which is better? A three-arm randomized controlled trial.

BACKGROUND: Exercise therapy is an effective component of fibromyalgia (FM) treatment. However, it is important to know the effects and specificities of the different types of exercise: muscle stretching and resistance training. AIM: To verify and compare the effectiveness of muscle stretching exercise and resistance training for symptoms and quality of life in FM patients. DESIGN: Randomized controlled trial. SETTING: Physical therapy service, FM outpatient clinic. POPULATION: Forty-four women with FM (79 screened). METHODS: Patients were randomly allocated into a stretching group (N.=14), resistance group (N.=16), and control group (N.=14). Pain was assessed using the visual analog scale, pain threshold using a Fischer dolorimeter, FM symptoms using the Fibromyalgia Impact Questionnaire (FIQ), and quality of life using the Medical Outcomes Study 36-item Short-Form Health Survey (SF-36). The three intervention groups continued with usual medical treatment. In addition, the stretching and resistance groups performed two different exercise programs twice a week for 12 weeks. RESULTS: After treatment, the stretching group showed the highest SF-36 physical functioning score (P=0.01) and the lowest bodily pain score (P=0.01). The resistance group had the lowest FIQ depression score (P=0.02). The control group had the highest score for FIQ morning tiredness and stiffness, and the lowest score for SF-36 vitality. In clinical analyses, the stretching group had significant improvement in quality of life for all SF-36 domains, and the resistance group had significant improvement in FM symptoms and in quality of life for SF-36 domains of physical functioning, vitality, social function, emotional role, and mental health. CONCLUSIONS: Muscle stretching exercise was the most effective modality in improving quality of life, especially with regard to physical functioning and pain, and resistance training was the most effective modality in reducing depression. CLINICAL REHABILITATION IMPACT: The trial included a control group and two intervention groups, both of which received exercise programs created specifically for patients with FM. In clinical practice, we suggest including both modalities in an exercise therapy program for FM.

Effects of shiatsu in the management of fibromyalgia symptoms: a controlled pilot study.

OBJECTIVES: This pilot study aimed to evaluate the potential effects of Shiatsu massage on the symptoms of adult patients with primary fibromyalgia, propose a Shiatsu treatment protocol, verify patient acceptability, and evaluate the feasibility for a larger study. METHODS: Thirty-four patients aged 33 to 62 years were divided into a Shiatsu group (SG; n = 17), who received full-body Shiatsu twice a week for 8 weeks, and a control group (n = 17), who received an educational booklet. The patients were assessed at baseline and after 8 weeks. Pain intensity was evaluated by the visual analog scale, pressure pain threshold by dolorimetry, anxiety by the State-Trait Anxiety Inventory, sleep by the Pittsburgh Sleep Quality Index, and symptoms impact on patient's health by the Fibromyalgia Impact Questionnaire. The SG was also questioned about adverse effects and level of satisfaction. RESULTS: After treatment, the SG presented statistically significant differences (P < .05) for the change scores of all variables, except state anxiety, compared with the control group. Relative percentage changes were considered clinically relevant for visual analog scale (40.6%), pressure pain threshold (76.4%), Pittsburgh Sleep Quality Index (34.4%), and Fibromyalgia Impact Questionnaire (22.30%). No clinically relevant effects were observed for anxiety after treatment. No adverse effects were reported during the treatment, and about 94% of the patients demonstrated satisfaction with Shiatsu. CONCLUSION: This pilot study showed the potential of Shiatsu in the improvement of pain intensity, pressure pain threshold, sleep quality, and symptoms impact on health of patients with fibromyalgia. The proposed Shiatsu treatment protocol was feasible and well accepted by the patients.

Brazilian-Portuguese translation and cross cultural adaptation of the activities-specific balance confidence (ABC) scale.

BACKGROUND: The Activities-specific Balance Confidence (ABC) scale was developed to quantify the self-perceived level of confidence in performing specific activities without losing balance or becoming unsteady. The ABC scale has been adopted in clinical practice and in research, although cross-cultural differences may impose difficulties in its use. OBJECTIVE: To translate, cross-culturally adapt and verify the intra- and inter-rater reliability of the Brazilian-Portuguese version of the ABC scale and describe the self-perceived balance confidence of elderly Brazilian people. METHOD: The ABC scale was translated and culturally adapted. To verify the intra- and inter-rater reliability, 40 elderly individuals with ages ranging from 60 to 88 years were interviewed. The scale was administered by two raters on the same day and readministered after seven days by rater 1. To test the reliability, we used the intraclass correlation coefficient (ICC). RESULTS: Six items from the ABC scale were considered culturally, semantically or regionally inappropriate and were modified. The intra-rater reproducibility was excellent (ICC=0.94), and the inter-rater reproducibility was very good (ICC=0.80). The self-perception of balance in specific activities of the elderly was considered very good, with an average of 81.7 and scores ranging from 61.2 to 96.7. CONCLUSION: The ABC scale was translated and culturally adapted for the Brazilian population and presents good intra- and inter-rater reliability. The self-perceived balance confidence in elderly Brazilian people evaluated with the ABC scale is moderate.

Brazilian-Portuguese translation and cross cultural adaptation of the activities-specific balance confidence (ABC) scale

BACKGROUND: The Activities-specific Balance Confidence (ABC) scale was developed to quantify the self-perceived level of confidence in performing specific activities without losing balance or becoming unsteady. The ABC scale has been adopted in clinical practice and in research, although cross-cultural differences may impose difficulties in its use. OBJECTIVE: To translate, cross-culturally adapt and verify the intra- and inter-rater reliability of the Brazilian-Portuguese version of the ABC scale and describe the self-perceived balance confidence of elderly Brazilian people. METHOD: The ABC scale was translated and culturally adapted. To verify the intra- and inter-rater reliability, 40 elderly individuals with ages ranging from 60 to 88 years were interviewed. The scale was administered by two raters on the same day and readministered after seven days by rater 1. To test the reliability, we used the intraclass correlation coefficient (ICC). RESULTS: Six items from the ABC scale were considered culturally, semantically or regionally inappropriate and were modified. The intra-rater reproducibility was excellent (ICC=0.94), and the inter-rater reproducibility was very good (ICC=0.80). The self-perception of balance in specific activities of the elderly was considered very good, with an average of 81.7 and scores ranging from 61.2 to 96.7. CONCLUSION: The ABC scale was translated and culturally adapted for the Brazilian population and presents good intra- and inter-rater reliability. The self-perceived balance confidence in elderly Brazilian people evaluated with the ABC scale is moderate. .

Quantitative assessment of postural alignment in young adults based on photographs of anterior, posterior, and lateral views.

OBJECTIVE: Postural assessment through photography is a simple method that allows the acquisition of quantitative values to define the alignment of body segments. The purpose of this study was to quantitatively assess the postural alignment of several body segments in standing through anterior, posterior, and lateral views. METHODS: In this cross-sectional study, 122 subjects were initially evaluated. Seven subjects were excluded from the study after cluster analysis. The final sample had 115 subjects, 75% women with a mean age of 26 ± 7 years. Photographs were taken from anterior, posterior, and lateral views after placement of markers on specific anatomical points. Photographs were analyzed using free Postural Analysis Software/Software of Postural Analysis (PAS/SAPO). Quantitative values for postural analysis variables were ascertained for head, upper and lower limbs, and trunk, along with the frequency of inclinations to the left and to the right. RESULTS: Regarding the head, 88% of the sample presented some inclination, 67% of which was to the right. There was a predominance of right inclination of the shoulder and pelvis in 68% and 43% of study subjects, respectively. Lower limbs presented mean alignment of 178° in the anterior view, and the trunk showed predominant right inclination in 66% of participants. CONCLUSION: Small asymmetries were observed in anterior and posterior views. This study suggests that there is no symmetry in postural alignment and that small asymmetries represent the normative standard for posture in standing.

Global Postural Re-education: a literature review.

BACKGROUND: The Global Postural Re-education (GPR) method has been widely used in clinical practice, with reported benefits for prevention and rehabilitation of musculoskeletal dysfunctions. In parallel with almost two decades of clinical implementation, research studies have tested and verified the effectiveness of GPR in treating different clinical conditions and have also compared this method with other physical therapy resources. However, few studies focused on the verification of the principles of mechanisms of action defended by the author of the method making the arguments in favor of the method weak. OBJECTIVE: To perform a critical systematic review of the effects of physical therapy intervention that use the GPR method. METHODS: We searched Medline, SciELO, LILACS and PeDRO, from 2000 to 2010, considering the key words: Global Postural Re-education, global and active stretching. RESULTS: We found 25 studies, 13 about GPR and 8 about global and active stretching in addition to three books and a thesis. After analysis, 20 references were included. CONCLUSIONS: Some of the studies indicated that the GPR method was more effective than other physical therapy interventions, while others demonstrated similar results of GPR when compared to other physical therapy interventions. Studies showed benefits of the GPR in improving the respiratory muscle strength, chest expansion, maximal respiratory pressure and in reducing pain, loss of urine in incontinent women, increasing flexibility, the electromyographic activity in temporomandibular disorders and postural stability in lower limb orthopedic alterations. Methodological limitations observed suggest the need for greater rigor in future research.

Reeducação Postural Global: uma revisão da literatura / Global Postural Re-education: a literature review

CONTEXTUALIZAÇÃO: O método de Reeducação Postural Global (RPG) tem sido utilizado na clínica com relatos de benefícios para a prevenção e recuperação de disfunções musculoesqueléticas. Após duas décadas de aplicação, estudos têm verificado sua eficácia no tratamento de diferentes condições clínicas e ele tem sido comparado com outros recursos fisioterapêuticos. Entretanto, são poucos os estudos voltados à comprovação dos princípios defendidos pelo autor do método, o que torna frágeis as argumentações em favor dele. OBJETIVO: Realizar, com base na literatura científica, uma análise crítica dos efeitos da intervenção fisioterapêutica utilizando o método RPG. MÉTODOS: Pesquisaram-se as bases de dados Medline, SciELO, LILACS e PeDRO, de 2000 a 2010, considerando os unitermos: RPG, alongamento global e alongamento ativo. RESULTADOS: Foram encontrados 25 estudos, sendo 13 relacionados ao método RPG e oito aos alongamentos global e ativo, além de três livros e uma tese. Após análise, 20 referências foram utilizadas. CONCLUSÕES: Parte dos estudos aponta que o método RPG é mais efetivo, enquanto outros mostram resultados similares a outros métodos de intervenção fisioterapêutica. Estudos indicam benefícios do método na melhora da força muscular respiratória, expansibilidade torácica, mobilidade toracoabdominal e da pressão respiratória máxima, além de reduzir a dor, a perda de urina em mulheres incontinentes, melhorar a flexibilidade, a atividade eletromiográfica nas disfunções temporomandibulares e a estabilidade postural em alterações ortopédicas de membros inferiores. Limitações metodológicas observadas sugerem a necessidade de maior rigor em futuras pesquisas.

BACKGROUND: The Global Postural Re-education (GPR) method has been widely used in clinical practice, with reported benefits for prevention and rehabilitation of musculoskeletal dysfunctions. In parallel with almost two decades of clinical implementation, research studies have tested and verified the effectiveness of GPR in treating different clinical conditions and have also compared this method with other physical therapy resources. However, few studies focused on the verification of the principles of mechanisms of action defended by the author of the method making the arguments in favor of the method weak. OBJECTIVE: To perform a critical systematic review of the effects of physical therapy intervention that use the GPR method. METHODS: We searched Medline, SciELO, LILACS and PeDRO, from 2000 to 2010, considering the key words: Global Postural Re-education, global and active stretching. RESULTS: We found 25 studies, 13 about GPR and 8 about global and active stretching in addition to three books and a thesis. After analysis, 20 references were included. CONCLUSIONS: Some of the studies indicated that the GPR method was more effective than other physical therapy interventions, while others demonstrated similar results of GPR when compared to other physical therapy interventions. Studies showed benefits of the GPR in improving the respiratory muscle strength, chest expansion, maximal respiratory pressure and in reducing pain, loss of urine in incontinent women, increasing flexibility, the electromyographic activity in temporomandibular disorders and postural stability in lower limb orthopedic alterations. Methodological limitations observed suggest the need for greater rigor in future research.

Quality of life and discriminating power of two questionnaires in fibromyalgia patients: Fibromyalgia Impact Questionnaire and Medical Outcomes Study 36-Item Short-Form Health Survey.

BACKGROUND: Fibromyalgia is a painful syndrome characterized by widespread chronic pain and associated symptoms with a negative impact on quality of life. OBJECTIVES: Considering the subjectivity of quality of life measurements, the aim of this study was to verify the discriminating power of two quality of life questionnaires in patients with fibromyalgia: the generic Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36) and the specific Fibromyalgia Impact Questionnaire (FIQ). METHODS: A cross-sectional study was conducted on 150 participants divided into Fibromyalgia Group (FG) and Control Group (CG) (n=75 in each group). The participants were evaluated using the SF-36 and the FIQ. The data were analyzed by the Student t-test (α=0.05) and inferential analysis using the Receiver Operating Characteristics (ROC) Curve--sensitivity, specificity and area under the curve (AUC). The significance level was 0.05. RESULTS: The sample was similar for age (CG: 47.8 ± 8.1; FG: 47.0 ± 7.7 years). A significant difference was observed in quality of life assessment in all aspects of both questionnaires (p<0.05). Higher sensibility, specificity and AUC were obtained by the FIQ (96%, 96%, 0.985, respectively), followed by the SF-36 (88%, 89% and 0.948 AUC). CONCLUSION: The FIQ presented the highest sensibility, specificity and AUC showing the most discriminating power. However the SF-36 is also a good instrument to assess quality of life in fibromyalgia patients, and we suggest that both should be used in parallel because they evaluate relevant and complementary aspects of quality of life.

Global postural reeducation and static stretching exercises in the treatment of myogenic temporomandibular disorders: a randomized study.

OBJECTIVE: The purpose of this study was to compare 2 different interventions, global postural reeducation (GPR) and static stretching exercises (SS), in the treatment of women with temporomandibular disorders (TMDs). METHODS: A total of 28 subjects with TMDs were randomized into 2 treatment groups: GPR, where therapy involved muscle global chain stretching, or SS, with conventional static stretching; but only 24 completed the study. Eight treatment sessions lasting 40 minutes each (weekly) were performed. Assessments were conducted at baseline, immediately after treatment end, and 2 months later. Measurements included pain intensity at the temporomandibular joint, headache, cervicalgia, teeth clenching, ear symptoms, restricted sleep, and difficulties for mastication, using a visual analogue scale. In addition, electromyographic activity and pain thresholds were measured at the masseter, anterior temporalis, sternocleidomastoid, and upper trapezius muscles. Two-way analysis of variance with Tukey post hoc test was used for between-group comparisons. Significance level was .05. RESULTS: Comparing the pain assessments using the visual analogue scale, no significant differences were seen with the exception of severity of headaches at treatment end (GPR, 3.92 ± 2.98 cm; SS, 1.64 ± 1.66 cm; P < .024). In addition, no significant differences were seen for pain thresholds and for electromyographic activity (P > .05). CONCLUSIONS: For the subjects in this study, both GPR and SS were similarly effective for the treatment of TMDs with muscular component. They equally reduced pain intensity, increased pain thresholds, and decreased electromyographic activity.

Quality of life and discriminating power of two questionnaires in fibromyalgia patients: fibromyalgia Impact Questionnaire and Medical Outcomes Study 36-Item Short-Form Health Survey / A qualidade de vida e o poder de discriminação de dois questionários em pacientes com fibromialgia: fibromyalgia Impact Questionnaire e Medical Outcomes Study 36-Item Short-Form Health Survey

BACKGROUND: Fibromyalgia is a painful syndrome characterized by widespread chronic pain and associated symptoms with a negative impact on quality of life. OBJECTIVES: Considering the subjectivity of quality of life measurements, the aim of this study was to verify the discriminating power of two quality of life questionnaires in patients with fibromyalgia: the generic Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36) and the specific Fibromyalgia Impact Questionnaire (FIQ). METHODS: A cross-sectional study was conducted on 150 participants divided into Fibromyalgia Group (FG) and Control Group (CG) (n=75 in each group). The participants were evaluated using the SF-36 and the FIQ. The data were analyzed by the Student t-test (α=0.05) and inferential analysis using the Receiver Operating Characteristics (ROC) Curve - sensitivity, specificity and area under the curve (AUC). The significance level was 0.05. RESULTS: The sample was similar for age (CG: 47.8±8.1; FG: 47.0±7.7 years). A significant difference was observed in quality of life assessment in all aspects of both questionnaires (p<0.05). Higher sensibility, specificity and AUC were obtained by the FIQ (96 percent, 96 percent, 0.985, respectively), followed by the SF-36 (88 percent, 89 percent and 0.948 AUC). CONCLUSION: The FIQ presented the highest sensibility, specificity and AUC showing the most discriminating power. However the SF-36 is also a good instrument to assess quality of life in fibromyalgia patients, and we suggest that both should be used in parallel because they evaluate relevant and complementary aspects of quality of life.

CONTEXTUALIZAÇÃO: A fibromialgia é uma síndrome dolorosa caracterizada por dor espalhada e crônica e sintomas associados com um impacto negativo na qualidade de vida. OBJETIVOS: Considerando a subjetividade da mensuração de qualidade de vida, o objetivo deste estudo foi avaliar o poder de discriminação de dois questionários que avaliam a qualidade de vida de pacientes com fibromialgia: o genérico Medical Short Form Healthy Survey (SF-36) e o específico Questionário do Impacto da Fibromialgia (QIF). MÉTODOS: Foi conduzido um estudo transversal com 150 indivíduos, divididos em dois grupos: grupo fibromialgia (FM) e grupo controle (GC) (n=75 em ambos). Os pacientes foram avaliados pelo SF-36 e pelo QIF. Na análise dos dados, utilizou-se o teste "t de Student" com α=0,05 e a Curva ROC (Receiver Operating Characteristics Curve). RESULTADOS: As amostras foram estatisticamente semelhantes para a idade - 47,8 (8,1) no GC e 47,0 (7,7) no FM - e estatisticamente diferentes em todos os aspectos dos dois questionários (SF-36 e QIF). Alta sensibilidade, especificidade e área abaixo da curva (AUC) foram obtidas com o QIF (96 por cento, 96 por cento, 0,985 respectivamente), seguido pelo SF-36 (88 por cento, 89 por cento e 0,948 AUC). CONCLUSÃO: O QIF mostrou-se mais discriminativo do que o SF-36 para avaliar a qualidade de vida de fibromiálgicos. No entanto, o SF-36 é também um bom instrumento de avaliação e sugere-se que ambos sejam usados uma vez que avaliam aspectos relevantes e complementares da qualidade de vida.

Prevalence of fibromyalgia in a low socioeconomic status population.

BACKGROUND: The aim of this study was to estimate the prevalence of fibromyalgia, as well as to assess the major symptoms of this syndrome in an adult, low socioeconomic status population assisted by the primary health care system in a city in Brazil. METHODS: We cross-sectionally sampled individuals assisted by the public primary health care system (n = 768, 35-60 years old). Participants were interviewed by phone and screened about pain. They were then invited to be clinically assessed (304 accepted). Pain was estimated using a Visual Analogue Scale (VAS). Fibromyalgia was assessed using the Fibromyalgia Impact Questionnaire (FIQ), as well as screening for tender points using dolorimetry. Statistical analyses included Bayesian Statistics and the Kruskal-Wallis Anova test (significance level = 5%). RESULTS: From the phone-interview screening, we divided participants (n = 768) in three groups: No Pain (NP) (n = 185); Regional Pain (RP) (n = 388) and Widespread Pain (WP) (n = 106). Among those participating in the clinical assessments, (304 subjects), the prevalence of fibromyalgia was 4.4% (95% confidence interval [2.6%; 6.3%]). Symptoms of pain (VAS and FIQ), feeling well, job ability, fatigue, morning tiredness, stiffness, anxiety and depression were statically different among the groups. In multivariate analyses we found that individuals with FM and WP had significantly higher impairment than those with RP and NP. FM and WP were similarly disabling. Similarly, RP was no significantly different than NP. CONCLUSION: Fibromyalgia is prevalent in the low socioeconomic status population assisted by the public primary health care system. Prevalence was similar to other studies (4.4%) in a more diverse socioeconomic population. Individuals with FM and WP have significant impact in their well being.

Handedness influences passive shoulder range of motion in nonathlete adult women.

OBJECTIVE: The purpose of this study was to determine whether handedness influences bilateral shoulder range of motion in nonathlete adult women. METHODS: This was an observational study. Shoulder range of motion (flexion, abduction, horizontal adduction, extension, external and internal rotation) was passively and bilaterally measured in 50 female, right-handed, and healthy university students, ranging from 20 to 29 years of age, who were not practicing repetitive activities with the upper limbs at the time of this study. The assessment was performed with a universal goniometer, twice for each subject by the same examiner. The first and second measurements were correlated using the intraclass correlation coefficient, which was high for all movements and ranged from 0.80 to 0.97. The Student t test and Wilcoxon test were used to compare the range of motion between the dominant and nondominant shoulders and the mean differences between the 2 sides. The effect of size was alpha = .05. RESULTS: There is statistically significance difference between the 2 sides when the rotational range of motion is compared; the dominant shoulder presented increased external rotation (mean, 4.74 degrees ; 95% confidence interval, 1.61-7.87) and decreased internal rotation (mean, 3.52 degrees ; 95% confidence interval, 1.64-5.4) compared to the opposite shoulder. CONCLUSION: Dominance should be considered when shoulder rotation is evaluated even in nonathlete adult women.