Aamer Sandoo1, George D Kitas2. 1. School of Sport, Health and Exercise Sciences, Bangor University, UK; Peter Maddison Rheumatology Centre, Betsi Cadwaladr University Health Board, Llandudno, UK; and Department of Rheumatology, Dudley Group NHS Foundation Trust, Dudley, UK. 2. Department of Rheumatology, Dudley Group NHS Foundation Trust, Dudley, UK.