Prevalence of disabling musculoskeletal pain in children and adolescents in Brazil: A cross-sectional study.

Background: Estimates of prevalence of musculoskeletal pain in children and adolescents vary considerably and the impact of pain on children's life is often not considered.

Objective: To determine the one-month prevalence of disabling musculoskeletal pain in children and adolescents. The secondary aims are to: 1) determine the body region with the highest prevalence; 2) understand the characteristics of the children with disabling musculoskeletal pain; and 3) describe the parents' perception of the prevalence.

Physical activity and education about physical activity for chronic musculoskeletal pain in children and adolescents.

Background: Chronic pain is a major health and socioeconomic burden, which is prevalent in children and adolescents. Among the most widely used interventions in children and adolescents are physical activity (including exercises) and education about physical activity.

Objectives: To evaluate the effectiveness of physical activity, education about physical activity, or both, compared with usual care (including waiting-list, and minimal interventions, such as advice, relaxation classes, or social group meetings) or active medical care in children and adolescents with chronic musculoskeletal pain.

Three in Every 10 School-aged Children in Brazil Report Back Pain in Any Given Year: 12-Month Prospective Cohort Study of Prevalence, Incidence, and Prognosis.

Objective: To estimate the prevalence, incidence, and prognosis of back pain in children and adolescents.

Design: Prospective cohort study.

Methods: We followed children and adolescents between the ages of 8 and 18 years with and without back pain over 12 months (3, 6, and 12 months) from public and private schools.

Translation, cross-cultural adaptation, and measurement properties of the psychosomatic questionnaire for children and adolescents with musculoskeletal pain into Brazilian-Portuguese.

Background: Psychosomatic symptoms seem to influence both the onset and development of pain. There is lack of Brazilian-Portuguese questionnaires that measure psychosomatic symptoms in children and adolescents.

Objective: To translate and cross-culturally adapt the Psychosomatic Questionnaire for Children and Adolescents into Brazilian-Portuguese and English and test the measurement properties of the Brazilian-Portuguese version.