Physical inactivity level and lipid profile in traditional communities in the Legal Amazon: a cross-sectional study : Physical inactivity level in the Legal Amazon

Anterior Knee Pain Scale (AKPS): structural and criterion validity in Brazilian population with patellofemoral pain

PURPOSE

To identify the best internal structure of the Brazilian version of the Anterior Knee Pain Scale (AKPS), comparing different instrument structures (structural validity) and correlating the scores of the versions (criterion validity).

METHODS

We included Brazilian volunteers, aged ≥ 18 years, with patellofemoral pain (PFP) for at least 3 months. We used the confirmatory factor analysis and considered the following fit indices: chi-square/degrees of freedom (DF), comparative fit index (CFI), Tucker-Lewis index (TLI), root mean square error of approximation (RMSEA). We considered the structure with the lowest values of the Akaike information criterion (AIC), sample size adjusted Bayesian information criterion (SABIC), and assessed criterion validity using Pearson correlation coefficient (r) to correlate the long and short versions.

RESULTS

The study included 101 participants, mostly women (65.3%), young adults (~ 31 years old), overweight (BMI > 25 kg/m2), incomplete higher education (37.6%), and physically active (64.4%). The original 1-domain, 13-item structure showed adequate fit indices (chi-square/GL < 3.00, TLI and CFI > 0.90, and RMSEA < 0, 08). However, items 11 and 12 had a factorial load of less than 0.23. Therefore, we excluded items 11 and 12 and found adequate fit indices (chi-square/GL < 3.00, TLI and CFI > 0.90, and RMSEA < 0, 08) and lower AIC and SABIC values. We observed a correlation coefficient above the acceptable cutoff of 0.70 (r = 0.966, p-value < 0.001) between the versions.

CONCLUSION

The 11-item AKPS (without items 11 and 12) is the version with the most adequate internal structure and correlates satisfactorily with the long version of the instrument.

Work-related musculoskeletal disorders in vulnerable populations: what are the most common body parts affected?

BACKGROUND

Studies investigating vulnerable populations have shown that work-related musculoskeletal disorders have a negative impact on quality of life. However, no study has examined the body regions commonly affected by work-related musculoskeletal disorders in vulnerable populations.

OBJECTIVE

To describe the body regions commonly affected by work-related musculoskeletal disorders in vulnerable populations.

METHODS

Cross-sectional study. We used the ABEP questionnaire, the World Health Organization Quality of Life, the Nordic Musculoskeletal Disorders Questionnaire, the Perceived Stress Scale, and a self-report questionnaire to determine morning-evening in human circadian rhythms (chronotype assessment). To reduce the possibility of information bias, we provided prior training in the use of the instruments and created an electronic database that was filled out in duplicate (in cases of disagreement, a third researcher was consulted). We tested the normality of the data using the Shapiro-Wilk test.

RESULTS

The sample consisted of 132 participants, but there was a sample loss of 41.6% (final sample n = 77). We observed the predominance of those who worked from 6 to 8 h/day, rest of 1 h during the working day, from 1 to 10 years of service and only 1 employment relationship. Regarding the quality of life, we observed a worse result in the domain related to the environment, as well as a stress level of 15.43 (± 7.52) with a maximum of 30. Finally, we observed the presence of pain self-reported by the artisanal fishermen in several regions of the body, lumbar being the most mentioned.

CONCLUSION

The neck, shoulders, arms, elbows, forearms, wrists, back, lumbar spine, and lower limbs are the most common parts of the body affected by work-related musculoskeletal disorders in artisanal fishermen.

The internal structure of Brazilian versions of disability questionnaires in patients with chronic low back pain: A cross-sectional study

BACKGROUND

Structural validity refers to the degree to which the scores of a questionnaire or scale are an adequate reflection of the construct to be measured. The aim of this study was to perform the analysis of the structural validity of the Roland-Morris Disability Questionnaire (RMDQ), Oswestry Disability Index (ODI), Quebec Back Pain Disability Scale (QBPDS), and Bournemouth Questionnaire (BQ) in Brazilian respondents with chronic low back pain.

METHODS

A cross-sectional study was conducted. The sample was composed by respondents with non-specific chronic low back pain (score ≥3 points on the 11-point Numerical Pain Rating Scale). The internal structure (number of domains and items) of the Brazilian versions of the RMDQ, the ODI, the QBPDS, and the BQ were analyzed by the confirmatory factor analysis.

RESULTS

Two hundred and twenty-two patients were included. Most of the sample consisted of women and overweight. The RMDQ and ODI have a one-dimensional structure and acceptable values for all confirmatory factor analysis fit indices. The QBPDS with 4 domains and 20 items showed the best values of the fit indices. In addition, we did not identify an internal structure for the BQ supported by the confirmatory factor analysis.

CONCLUSION

The ODI and RMDQ present valid internal structure with 1 domain (disability). The QBPDS has a valid internal structure with 4 domains (rest, prolonged postures, ambulation/reach, and bending/carrying). The BQ does not have a well-defined internal structure.

Variáveis clínicas consideradas fatores de risco para a síndrome metabólica: um estudo transversal

RESUMO Objetivo Identificar os principais fatores de risco para a síndrome metabólica e sua relação com a percepção da qualidade de vida em colônias pesqueiras brasileiras. Métodos Incluímos 77 participantes com idade > 18 anos. Síndrome metabólica e qualidade de vida foram os principais desfechos do estudo. Consideramos nível de significância < 0,05 e todos os procedimentos foram aprovados pelo comitê de ética. Resultados A maioria dos participantes é do sexo masculino, solteiros, classe econômica D-E, carga horária trabalhada de 6 a 8 horas, tempo de serviço de 1 a 5 anos e dedicados exclusivamente à pesca. Conclusão: Perímetro abdominal e pressão arterial foram os critérios mais frequentes e de maior contribuição para a síndrome metabólica. Apesar de a qualidade de vida apresentar maior escore para o domínio relações sociais, neste estudo, o domínio físico foi o único associado a outra observação, na qual observamos correlação significativa com a pressão arterial sistólica.

Clinical variables considered risk factors for the metabolic syndrome: a cross-sectional study

ABSTRACT Objective To identify the main risk factors for metabolic syndrome and its relationship with the perception of quality of life in Brazilian fishing colonies. Methods We included 77 participants aged > 18 years. Metabolic syndrome and quality of life were the main study outcomes. We considered a significance level < 0.05 and all procedures were approved by the ethics committee. Results Most participants are male, single, economic class D-E, working hours of 6 to 8 hours, length of service from 1 to 5 years, and dedicated exclusively to fishing. Conclusion Abdominal perimeter and blood pressures were the most frequent criteria and the greatest contribution to metabolic syndrome. Although quality of life had a higher score for the social relationship domain, in this study, the physical domain was the only one associated with another observation, in which we observed a significant correlation with systolic blood pressure.