Role of psychological intervention in pain management and quality of life of elderly patients with ankylosing spondylitis

Figure 3 Rehabilitation of two groups of elderly ankylosing spondylitis patients. A: Pre- and post-interventional chest expansion across groups; B: Pre- and post-interventional occipital-wall distance measurements; C: Pre- and post-interventional morning stiffness duration; D: Pre- and post-interventional modified Schober test distances. ^aP < 0.05, ^bP < 0.01 vs before intervention; ^cP < 0.05 vs control.