Back Pain That Gets Better With Movement? What to Know About Ankylosing Spondylitis
Back pain is incredibly common. For many people, resting seems like the natural response when their back begins to hurt.
But what if your back pain behaves differently?
If you regularly experience lower back or hip pain that feels worse after sitting or resting but improves when you get up and move, it may be worth paying attention to the pattern.
This type of pain can sometimes occur with ankylosing spondylitis, an inflammatory form of arthritis that primarily affects the spine.
What Is Ankylosing Spondylitis?
Ankylosing spondylitis is a type of arthritis that causes inflammation in the joints and ligaments of the spine.
Over time, this inflammation can cause pain and stiffness and may reduce flexibility in the spine.
In more severe cases, some of the vertebrae can eventually fuse together, making the spine more rigid.
However, the way ankylosing spondylitis affects people varies considerably. Some experience relatively mild episodes of pain and stiffness, while others experience more persistent symptoms.
What Does Ankylosing Spondylitis Feel Like?
One of the most common symptoms is pain and stiffness in the lower back or hips.
But the pattern can be particularly important.
Unlike some types of back pain, ankylosing spondylitis symptoms may become worse during periods of inactivity.
For example, pain may be more noticeable:
- After sitting for a long period of time
- During the night
- After waking up in the morning
- Following extended periods of rest
Movement and exercise may actually help improve the pain and stiffness.
Is Ankylosing Spondylitis Only a Back Condition?
No.
Although the spine is commonly affected, ankylosing spondylitis can involve other areas of the body.
Some people may experience:
- Pain or stiffness in the hips
- Pain or inflammation in the shoulders, knees, or feet
- Fatigue
- Difficulty taking deep breaths if joints around the ribs are affected
- Eye pain or vision changes caused by inflammation called uveitis
Some people with ankylosing spondylitis may also have conditions such as psoriasis or inflammatory bowel disease.
Who Can Develop Ankylosing Spondylitis?
Anyone can develop ankylosing spondylitis, although certain factors can increase the likelihood.
Symptoms commonly begin before age 45.
Genetics can also play a role. A gene called HLA-B27 is associated with an increased risk of developing ankylosing spondylitis.
However, having HLA-B27 does not mean that someone will necessarily develop the condition.
Family history and certain other inflammatory conditions can also be associated with increased risk.
Why Can Movement Help?
Because ankylosing spondylitis is an inflammatory condition, extended periods of inactivity can contribute to stiffness.
Exercise and physical therapy can play an important role in helping people maintain flexibility, mobility, posture, and muscle strength.
The type and amount of exercise appropriate for each person can vary, so people with persistent symptoms should discuss physical activity with a healthcare professional.
When Should You Talk to a Healthcare Provider?
Back pain does not automatically mean you have ankylosing spondylitis.
Muscle strain, injuries, posture, and many other conditions can cause back pain.
However, consider discussing your symptoms with a healthcare professional if your back pain:
- Persists over time
- Regularly becomes worse after rest
- Is associated with prolonged morning stiffness
- Improves noticeably with movement
- Is accompanied by other unexplained symptoms
Recognizing patterns in when your pain appears and what makes it better or worse can provide useful information during a medical evaluation.
Research Is Helping Us Learn More About Ankylosing Spondylitis
Researchers continue to study ankylosing spondylitis and other inflammatory conditions affecting the spine.
Clinical research studies can help scientists better understand these conditions and evaluate potential approaches to treatment.
At SCLA Management, we work with clinical research sites across the United States conducting studies across a variety of medical conditions, including inflammatory forms of arthritis.
Interested in Clinical Research?
If you have been diagnosed with ankylosing spondylitis, you may be eligible for a clinical research study.
Explore our current research opportunities
Explore Current Studies
This article is for educational purposes only and is not intended to provide medical advice, diagnosis, or treatment. Always speak with a qualified healthcare professional about symptoms or medical concerns.
Sources
NIAMS — Ankylosing Spondylitis
NIAMS — Ankylosing Spondylitis: Diagnosis, Treatment, and Steps to Take
