How Do Exercise, Sleep and Depression Affect Disease Scores and Quality of Life in Primary Sjögren's Syndrome Patients?

Abstract

Primary Sjögren's syndrome (PSS) has many effects such as fatigue, pain, physical activity limitation and sleep disturbance, which limit patient's daily and social lives. The aim of our study was to assess fatigue, depression, physical activity status and quality of life in patients with PSS, and to determine the relationship between these data and disease-related parameters. This study was conducted with 117 primary Sjögren's syndrome patients. Demographic and anthropometric characteristics, disease activity (ESSDAI), quality of life scale (SF36), depression (Beck Depression Scale), physical activity status (International Physical Activity Questionnaire Short Form (IPAQ) score) and sleep status (Pittsburgh Sleep Quality Scale) of PSS patients were evaluated and relationships have been examined. According to the results of our study, we found that sleep disorders are common in PSS patients (74.4%). Overweight patients, particularly higher lean mass sleep better (r:-0.201, p:0.043). Poor sleep causes fatigue (p=0.062) and depression (p=0.030). Sleep disturbance could not be explained by depressive state alone. However, after controlling for depression, the effect of sleep on fatigue seriously decreases (p=0.311). Exercise did not improve sleep quality (p=0.35) and the rate of poor sleep was higher among who exercised (p=0.192). Based on the results of our study, we believe that, treating depression in PSS patients is crucial for reducing fatigue. Patients need education on performing the correct exercises and weight gain should done in a professional manner. Gaining a deeper understanding of the multisystem involvement of the disease and the impact of exercise on the disease, will have positive effects on patient care and treatment decisions.