title: Community-deliverable exercise and anxiety in adults with arthritis and other rheumatic diseases: a protocol for a systematic review and meta-analysis of randomised controlled trials.
abstract: While anxiety is a major public health problem in adults with arthritis and other rheumatic diseases (AORD), the effects of exercise on anxiety in adults are not well established despite numerous studies on this topic. The purpose of this study is to conduct a systematic review with an aggregate data meta-analysis to determine the effects of community-deliverable exercise interventions (aerobic, strength training or both) on anxiety in adults with AORD.
  
  
  
  Randomised controlled exercise intervention trials ≥4 weeks and published in any language up to 31 December 2016 will be included. Studies will be retrieved by searching 8 electronic databases, cross-referencing and expert review. Dual selection and abstraction of data will occur. The primary outcome will be changes in anxiety. Risk of bias will be assessed using the Cochrane risk of bias assessment instrument while confidence in the cumulative evidence will be assessed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) instrument. Standardised effect sizes for anxiety will be calculated from each study and then pooled using the inverse variance heterogeneity (IVhet) model. Meta-regression based on the IVhet model will be used to examine the relationship between changes in anxiety and selected covariates.
  
  
  
  The results of this study will be presented at a professional conference and published in a peer-reviewed journal.
  
  
  
  CRD42016048728.
authors.affiliation: Department of Biostatistics, School of Public Health, West Virginia University, Morgantown, West Virginia, USA.
authors.forename: George A
authors.initials: GA
authors.lastname: Kelley
authors.affiliation: Department of Biostatistics, School of Public Health, West Virginia University, Morgantown, West Virginia, USA.
authors.forename: Kristi S
authors.initials: KS
authors.lastname: Kelley
authors.affiliation: Departments of Social Medicine and Orthopaedics, University of North Carolina, Chapel Hill, North Carolina, USA.|Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina, USA.
authors.forename: Leigh F
authors.initials: LF
authors.lastname: Callahan
mesh_terms: D001008:Anxiety Disorders / Q000150:complications / Q000517:prevention & control*; D001168:Arthritis / Q000150:complications / Q000523:psychology / Q000628:therapy*; D003153:Community Health Services / Q000379:methods*; D005081:Exercise Therapy / Q000379:methods* / Q000523:psychology; D006801:Humans; D011788:Quality of Life; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D012216:Rheumatic Diseases / Q000150:complications / Q000523:psychology / Q000628:therapy*; D000078202:Systematic Reviews as Topic; D015201:Meta-Analysis as Topic
keywords: adults; arthritis; exercise; meta-analysis; protocol; systematic review