Abstract Background: Despite the criteria already established for the classification of knee osteoarthritis (OA), a radiographic and/or clinical knee OA diagnosis usually occurs in cases of fully manifest or more advanced disease, which can make health promotion, prevention, and functional rehabilitation in more advanced stages of the disease less effective. In addition, radiographic knee OA can generate more financial costs for health services. Therefore, developing and validating screening instruments to assess the probability of development and progression of knee OA would be of great value for both clinical practice and science. Objective: To cross-culturally adapt and investigate the measurement properties of the Knee OA Pre-screening Questionnaire Brazilian version. Methods: A total of 250 individuals of both sexes aged between 35 and 92 years [(mean (standard deviation): 63 (11) years old; 74.1 (15.1) kg; 1.59 (0.09) m; 29.38 (5.44) kg/m2] participated in this study. The cross-cultural adaptation and analyses of the measurement properties of the KOPS Brazilian version included: (1) assessment of conceptual and item equivalence; (2) assessment of semantic equivalence; (3) assessment of operational equivalence; and (4) assessment of measurement equivalence, reliability, and validity. Results: Cronbach's alpha for the internal consistency among the six components of the KOPS Brazilian version was 0.71. The test-retest 72 h apart for each component resulted in a coefficient correlation intraclass ranging from 0.74 to 1.00. The probability of an individual randomly chosen from the population having KL ≥ 1 and KOPS Brazilian version ≥ 21 points was 0.74 (area under the curve of the Receiver Operating Characteristic – AUC of ROC); furthermore, the AUC for KL ≥ 2 and the KOPS Brazilian version ≥ 23 points was 0.77. Conclusion: The KOPS Brazilian version is a reliable and valid instrument for early screening of knee OA in individuals aged 35 years and over in the Brazilian context.

Resumo A autogestão na saúde é compreendida como a habilidade para gerir recursos internos, externos, conhecimentos e motivações relacionados com uma condição clínica crónica. O presente estudo propõe a tradução e adaptação cultural para a população portuguesa, bem como as propriedades psicométricas, das escalas Communication with Physicians (CwP) e Cognitive Symptoms Management (CSM). Após constituída a versão final das escalas no idioma português europeu e adaptada culturalmente para a população adulta com doença crónica, as escalas foram aplicadas inicialmente a uma amostra de 30 participantes, tendo em vista a obtenção da fiabilidade teste reteste, e posteriormente a uma amostra de 217 participantes para avaliação das propriedades psicométricas. Os participantes tinham todos pelo menos uma doença crónica e idade superior a 18 anos. Os resultados demonstraram valores adequados para a fiabilidade teste reteste de 0,72 para a escala CwP e 0,84 para a escala CSM. Após Análise Fatorial Confirmatória (AFC), foram encontrados índices de ajustamento aceitáveis variando de 0,37 a 0,87. Os valores da fiabilidade compósita foram de 0,75 para a CwP e de 0,73 para a CSM. A variância extraída da média (VEM) dos contructos foi de 0,75 para a CwP e 0,32 para a CSM. O valor de CFI foi de 0,84 e o de GFI foi de 0,90. Os questionários foram traduzidos e adaptados culturalmente com sucesso. Os valores da AFC evidenciam a validade das escalas CwP e CSM para a população portuguesa com doença crónica.

Abstract Healh self-management is the ability to manage internal and external resources, knowledge and motivations related to a chronic clinical condition. The present study proposes the translation and cultural adaptation for the portuguese language, as well as the psychometric properties, of the Communication with Physicians (CwP) and Cognitive Symptoms Management (CSM) scales. After constituting the final version of the scales in the European Portuguese language and culturally adapted to the adult population with chronic disease, the scales were initially applied to a sample of 30 participants, in order to obtain the test-retest reliability, and later to a sample of 217 participants for evaluation of psychometric properties. Participants all had at least one chronic illness and were over 18 years old. The results showed adequate values for the test-retest reliability of 0.72 for the CwP scale and 0.84 for the CSM scale. After confirmatory factor analysis (CFA), acceptable adjustment indexes ranging from 0.37 to 0.87 were found. The composite reliability values were 0.75 for CwP and 0.73 for CSM. Contracts VEM was 0.75 for CwP and 0.32 for CSM. The CFI value was 0.84 and the GFI value was 0.90. The questionnaires were successfully translated and culturally adapted. The AFC values confirm the validity of the psychometric properties to be used in the portuguese population with chronic disease.

Introduction: Currently there is a growing trend in the prevalence of overweight and obesity. This increased prevalence trend leads to an increase in the costs of health care. Objective: The aim of the present study was to analyze the effects on physical fitness and bone mineral density through an intervention program of physical activity based on rhythmic and choreographic activities in an overweight and obese population. Method: An 8-month physical activity based on rhythmic and choreographic activities was conducted in overweight and obese people. Thirty-four participants aged 50.43 ± 10.57 with a body mass index (BMI) 38.37 ± 4.82 took part in the physical activity program. This study assesses the effects of fitness, percentage of body fat and bone mineral density (BMD). Results: After an 8-month physical activity intervention program based on rhythmic and choreographic activities, significant differences were found in: percentage of body fat (p = 0.004), aerobic capacity (p = 0.023), flexibility of the lower limbs (flexibility in the right leg p = 0.029 and left leg p = 0.002), balance (p < 0.001), strength in lower limbs (p = 0..003) and strength in upper limbs (p < 0.001). Besides that, significant differences were found in parameters related with BMD such as T-Score (p = 0.025) and Z-Score (p = 0.012), Bone Quality Index (BQI) (p = 0.026) and an increase in Broadband Ultrasound Attenuation (BUA) although not a statistically significant one (p = 0.939). Conclusions: These findings suggest that a physical activity program based on rhythmic and choreographic activities can act as a preventive method of mobility and fragility, as well as preventing bone loss.

Introducción: Actualmente hay una tendencia creciente en la prevalencia del sobrepeso y la obesidad. Esta tendencia creciente en la prevalencia de la obesidad conduce a un aumento en los costos de la atención sanitaria. Objetivo: El objetivo del presente estudio fue analizar los efectos sobre la aptitud física y la densidad mineral ósea a través de un programa de intervención de actividad física basado en actividades rítmicas y coreográficas en una población con sobrepeso y obesidad. Método: 8 meses de actividad física basada en actividades rítmicas y coreográficas fue llevado a cabo en personas con sobrepeso y obesidad. Treinta y cuatro participantes de 50.43 ± 10.57 años y con un índice de masa corporal (IMC) de 38.37 ± 4.82 participaron en el programa de actividad física. Este estudio evalúa los efectos sobre la aptitud física, el porcentaje de grasa corporal y la densidad mineral ósea (DMO). Resultados: Después de un programa de intervención de actividad física de 8 meses basado en actividades rítmicas y coreográficas, se encontraron diferencias significativas en: el porcentaje de grasa corporal (p = 0.004), la capacidad aeróbica (p = 0.023), la flexibilidad de las extremidades inferiores (flexibilidad en la pierna derecha p = 0.029 y en la pierna izquierda p = 0.002), el equilibrio (p <0.001), la fuerza en los miembros inferiores (p = 0.003) y la fuerza en los miembros superiores (p <0.001). Además, se encontraron diferencias significativas en los parámetros relacionados con la DMO, tales como T-Score (p = 0.025) y Z-Score (p = 0.012), el Índice de Calidad de hueso (BQI) (p = 0.026) y el aumento de la Atenuación de Ultrasonido por Banda Ancha (BUA), aunque no fue estadísticamente significativa (p = 0.939). Conclusiones: Estos hallazgos sugieren que un programa de actividad física basado en actividades rítmicas y coreográficas puede actuar como un método preventivo en la movilidad y fragilidad, así como en la prevención de la pérdida ósea.

A influência da maturação biológica e atividade física (AF) nas diferenças de composição corporal em adolescentes tem sido pouco estudada. O objetivo deste estudo foi examinar se, na composição corporal dos adolescentes, a AF e a maturidade eram fatores determinantes específicos do sexo. Foram avaliados noventa e quatro adolescentes (50 meninos e 44 meninas). Todas as medidas antropométricas foram obtidas de acordo com os procedimentos do ISAK, a idade óssea foi estimada pelo método TW3 e a AF foi avaliada com o Actigraph (r) GT1M, durante sete dias consecutivos. A maturidade explicou 33% do índice de massa corporal (IMC) e da circunferência da cintura (CC) e 31% do diâmetro abdominal-sagital (DAS), nos rapazes. Nas raparigas, a maturidade explicou 27% do índice cintura-anca (ICA), a AF moderada explicou 17% do IMC e 12% da CC e, a AF moderada-a-vigorosa explicou 11% do DAS. Estes resultados parecem indicar que os fatores determinantes da composição corporal dos adolescentes são específicos do sexo. A maturidade foi o principal fator preditivo nos rapazes e, em conjunto com a AF moderada, nas raparigas. Os nossos resultados suportam a evidência de que os investigadores precisam considerar a maturidade biológica quando explicam as alterações da composição corporal nos adolescentes.

The influence of biological maturation and physical activity (PA) on the differences of body composition in adolescents have been little studied. The purpose of this study was to examine if PA and maturity status were sex-specific determinant factors in the adolescents' body composition. Ninety-four adolescents (50 boys and 44 girls) were evaluated. All anthropometric measures were obtained according to ISAK procedures, bone age was estimated by the TW3 method, and PA was assessed with Actigraph (r) GT1M, over seven consecutive days. Maturity status explained 33% of the body mass index (BMI) and waist circumference (WC) and 31% of the sagittal abdominal diameter (SAD) in boys. In girls, maturity status explained 27% of the waist-to-hip ratio (WHR), moderate PA explained 17% of the BMI and 12% of the WC, and moderate to vigorous PA explained 11% of the SAD. These results seem to indicate that the determinant factors of the adolescents' body composition are sex-specific. Maturity status was the main predictive factor in boys and interacted with PA in girls. Our findings support the evidence that researchers need to consider biological maturity when explaining body composition changes in adolescents.