title: Diaphragmatic contribution to ventilation in patients with ankylosing spondylitis.
mesh_terms: D000328:Adult; D001450:Ballistocardiography; D001945:Breathing Exercises; D003964:Diaphragm / Q000502:physiology / Q000503:physiopathology*; D005260:Female; D006801:Humans; D007366:Intercostal Muscles / Q000503:physiopathology; D008171:Lung Diseases / Q000175:diagnosis; D008297:Male; D026741:Physical Therapy Modalities; D011187:Posture; D012119:Respiration; D012129:Respiratory Function Tests; D013147:Spirometry; D013167:Spondylitis, Ankylosing / Q000503:physiopathology* / Q000628:therapy; D013909:Thorax / Q000503:physiopathology