Exercise Therapy Quality of Life 3 Terapia por Ejercicio 3 Adherence to treatment 2 Adult 2 Ankylosing Spondylitis Quality of Life 2 Ankylosing spondylitis 2 Arthritis, Rheumatoid 2 Bath ankylosing spondylitis disease activity index 2 Bath ankylosing spondylitis functional index 2 Biological Products 2 Center for Epidemiological Studies Depression Scale 2 Exercise 2 Female 2 Humans 2 Male 2 Middle Aged 2 Monitoring disease 2 Patient Compliance 2 Questionnaires 2 Severity of Illness Index 2 Spondylitis, Ankylosing 2 Treatment Outcome 2 adult 2 ankylosing spondylitis 2 compliance questionnaire on rheumatology 2 conference paper 2 controlled study 2 depression 2 disease activity 2