About the Stiffness Working Group The OMERACT Stiffness Working Group is dedicated to Jasvinder A SinghCo-Chair Vibeke StrandCo-Chair Peter TugwellCo-Chair Working Group Publications Expand More than Just Minutes of Stiffness in the Morning: Report from the OMERACT Rheumatoid Arthritis Flare Group Stiffness Breakout Sessions Stiffness Is the Cardinal Symptom of Inflammatory Musculoskeletal Diseases, Yet Still Variably Measured: Report from the OMERACT 2016 Stiffness Special Interest Group Advancing stiffness measurement in rheumatic disease: Delphi study protocol and report from the Stiffness Special Interest group at OMERACT 2018