For a patient with ankylosing spondylitis, what is the typical effect of engaging in regular exercise?

• A. Exercise typically reduces complaints of pain and stiffness in patients with ankylosing spondylitis.
• B. Exercise does not affect symptoms, but is necessary to prevent postural deformities.
• C. Exercise typically exacerbates symptoms, but is necessary to reduce the risk of pulmonary complications.
• D. Exercise typically can be deferred as long as normal posture is maintained.

Answer: (A)

Regular, appropriate exercise in ankylosing spondylitis primarily reduces pain and stiffness. Movement helps maintain spinal and chest flexibility, prevents excessive stiffness after periods of rest, and strengthens the supporting muscles around the spine. This combination tends to lessen morning stiffness and daily pain, improving function and overall quality of life. While posture and pulmonary benefits are also supported by regular activity, the most consistent and important outcome described here is the reduction of pain and stiffness, making that option the best fit.