Active_comparator: Control group

Home-based exercise program will be explained to patients diagnosed with axSpA by a physiotherapist. All exercises will be repeated with the physiotherapist and explained until understood. Patients will be asked to perform these exercises on their own 3 non-consecutive days a week for 6 weeks. Patients will be called by the physiotherapist on each exercise day and their home exercises will be monitored and recorded in the exercise tracking chart created for each patient. In addition, the patients will be given an exercise follow-up chart and they will be asked to fill in the existing chart and submit it at the end of the 6-week training.

Experimental: Study group

Individuals in this group will be taught home exercises face-to-face in a single session as in the home-based exercise group and will be asked to perform the exercises themselves at home for 3 non-consecutive days a week for 6 weeks. In this group, home exercises will be monitored by phone and recorded with an exercise tracking chart. In addition to home-based exercises, a total of 12 sessions of face-to-face matrix rhythm therapy will be performed, 2 non-consecutive days a week for 6 weeks. Matrix rhythm therapy applications will be applied by a specialist physiotherapist who has received training with the matrix rhythm therapy vibromassage device.