High-intensity Interval Exercise in Rheumatoid Arthritis

"Twelve weeks of supervised high intensity aerobic and resistance exercise including two sessions/week, one additional session of the patient´s own choice, non-supervised. The target of the high intensity intervals (HIIT) is 90%-95% of maximum heart rate alternated with recovery phases at 70% of maximal heart rate. The resistance exercise session of large muscle groups: 8-10 repetitions, 2-3 sets.~Exercise guidance follows principles of self-efficacy and person-centeredness."