Physical Activity in Patients With Systemic Lupus Erythematosus

Background. Systemic lupus erythematosus is a chronic autoimmune disease. Among its main clinical manifestations are musculoskeletal symptoms such as myopathies, arthritis, arthralgias or osteonecrosis. Physical activity can improve the perception of quality of life and well-being of these patients.

Objective. To assess the degree of physical activity in patients with systemic lupus erythematosus, and to identify the main clinical, sociodemographic and anthropometric variables that influence it.

Method. Ambispective cohort study. Sixty-three patients with systemic lupus erythematosus will be recruited. The primary variable will be the degree of physical activity (International Physical Activity Questionnaire). Secondary and modifying variables will be: fatigue (Fatigue Assessment Scale), health-related quality of life (Short Form-36 Health Survey), sleep disorders (Pittsburgh Sleep Quality Index), depressive (Beck Depression Inventory -II) and anxiety symptoms (Hamilton Anxiety Rating Scale), age, and disease activity, duration and damage. Possible confounding variables will be sex, toxic habits (smoking), diagnosis of other pathologies and exposure to therapy. In the analysis, the degree of physical activity of patients with lupus erythematosus will be calculated and a multiple regression analysis will be performed to evaluate the predictive model that best fits the degree of activity of these patients.

Expectedresults. To identify the degree of physical activity of patients with systemic lupus erythematosus and to identify the predictive model of physical activity in these patients.