Objective To investigate the effects of cardiorespiratory and strength exercises on disease activity for patients with inflammatory rheumatic diseases (IRDs). Design A systematic review with meta-analysis registered at PROSPERO (CRD42015020004). Participants Patients with IRDs. Data sources The databases MEDLINE, AMED, Embase and CINAHL were searched from inception up to April 2016. Eligibility criteria for selecting studies Trials were included if they were randomised controlled trials of adults with IRDs, comparing the effect of cardiorespiratory and strength exercises with usual care on disease activity and followed the American College of Sports Medicine's exercise recommendations. The primary outcome was disease activity in terms of inflammation, joint damage and symptoms. Data synthesis Data were pooled in a randomeffect model for all outcomes, and standardised mean differences (SMDs) were calculated. The quality of evidence was evaluated according to the Grading of Recommendations Assessment, Development and Evaluation approach. Results Twenty-six trials with a total of 1286 participants were included. There was high to moderate quality evidence, for a small beneficial effect on disease activity scores (0.19 (95% CI 0.05 to 0.33), p<0.01) and joint damage (SMD 0.27 (95% CI 0.07 to 0.46), p<0.01). Furthermore, moderate quality evidence for a small beneficial effect on erythrocyte sedimentation rate (SMD 0.20 (95% CI 0.0 to 0.39), p=0.04) and for no effect on C reactive protein (SMD −0.14 (95% CI −0.37 to 0.08), p=0.21). Beneficial effects were also seen for symptoms. Conclusions The results of this review suggest beneficial effects of exercises on inflammation, joint damage and symptoms in patients with IRDs.
InTRODuCTIOnThe term inflammatory rheumatic diseases (IRDs) covers a large group of heterogeneous disorders sharing common features and clinical presentations. 1 The most prominent clinical feature of IRDs is pain, which may have a central as well as peripheral origin, caused by current systemic inflammation or by joint and tissue damage due to a previous inflammatory condition. 2 Disease activity in IRDs is often expressed as an index of inflammation, joint damage and symptoms like pain, stiffness and fatigue. Additionally, the last decade has produced evidence that patients with IRDs also have an increased risk of cardiovascular diseases (CVDs).3 The mechanisms underlying the premature CVD events in IRDs are not fully elucidated, but it is clear that the systemic inflammation, and its interaction with traditional risk factors, plays an important role. and exercises are considered an important part of the management. 6 Exercise is defined as physical activity that is planned, structured and repetitive, with a final or intermediate objective to improve or maintain physical fitness.7 Due to the clinical features of IRDs, exercises to maintain range of motion (ROM) and pain-relieving exercises in hot pools have been recommended. 6 Unfortunately, these types of exercises have no effect on cardiov...