How long does exercise therapy take to work for ankylosing spondylitis?

Ankylosing spondylitis can cause inflammatory back pain and stiffness, with movement sometimes becoming harder during flares. Exercise therapy aims to preserve spinal and joint movement, support posture, improve breathing mechanics, and build strength for daily tasks. It does not work like a single dose of medicine; benefits often emerge through repeated, manageable practice.

Early signs may include easier morning movement, better posture, less guarding, or improved tolerance for walking and household activities. Pain can vary with inflammation, sleep, and workload, so progress is better judged across several days than by one session.

Work with a physiotherapist to choose mobility, posture, breathing, and strengthening exercises that fit your current ability. Use controlled movements and regular pauses rather than forcing a stiff joint. Keep the routine consistent on better days and adapt it during a flare according to the plan you were given.

Record stiffness on waking, movement that feels easier, and activities that remain difficult. If there is no useful change after the review period agreed with your therapist, or if exercises repeatedly worsen symptoms, arrange a reassessment so the programme can be adjusted.

Seek urgent care for sudden major weakness, new loss of bladder or bowel control, numbness around the groin, severe unexplained chest or back pain, or an eye that becomes painful, red, and sensitive to light. Contact your treating team promptly for a marked flare, new joint swelling, or pain that prevents safe movement.

Ask which exercises should continue during a flare, how progress will be measured, how to protect posture and breathing, and when the programme should be reviewed or progressed.