Ankylosing Spondylitis & Cold Therapy

The Morning You Know Too Well

The alarm clock rings, but your body is already awake, has been for some time. It is not a gentle stirring, but a slow, grudging negotiation with stiffness. The first attempt to sit up sends a familiar, deep ache through your lower back and hips. Each movement is carefully considered, a conscious effort to coax joints into action that others take for granted. This experience, of a body that feels older than its years, particularly in the morning, is a hallmark for many living with ankylosing spondylitis. Managing such a chronic condition is a long term commitment, a partnership between you, your medical team, and the lifestyle strategies you adopt. Within this framework, many people explore supportive modalities like physiotherapy, specific exercise, and, increasingly, whole-body cold therapy.

This guide is designed to provide you with a clear, factual understanding of ankylosing spondylitis and to explore how brief, intense cold application might fit into your comprehensive management plan as a supportive measure. It is not a treatment guide, but a source of information to help you have more informed conversations with your doctor and to understand the science behind the services we offer at our studio in Memmingen.

What is Ankylosing Spondylitis?

Ankylosing spondylitis, often abbreviated to AS, is a type of inflammatory arthritis. The name itself offers clues: 'spondylitis' refers to inflammation of the spine, and 'ankylosing' means fusion or stiffening. At its core, AS is an autoimmune condition. This means your immune system, which is designed to protect you from infection, mistakenly attacks your own body's tissues.

In the case of ankylosing spondylitis, the primary targets are the joints of the spine, particularly the sacroiliac joints, which connect the base of your spine to your pelvis. The immune attack causes chronic inflammation in these areas. Over a long period, the body's healing response to this persistent inflammation can lead to the formation of new bone tissue. In advanced cases, this new bone can bridge the gaps between vertebrae, causing them to fuse together. This fusion is what leads to the profound loss of spinal flexibility, sometimes referred to as 'bamboo spine'.

While the spine is the main area affected, the inflammation is systemic, meaning it can affect other parts of the body too. This includes:

• Entheses, which are the points where tendons and ligaments attach to bone. Common sites include the heel (Achilles tendon) and the sole of the foot (plantar fascia).
• Peripheral joints like the hips, shoulders, knees, and ankles.
• In some individuals, organs such as the eyes (uveitis), and more rarely, the heart and lungs can be involved.

It is a condition that typically begins in late adolescence or early adulthood, and it tends to affect more men than women. The exact cause remains unknown, but there is a very strong genetic link, most notably with a gene called HLA-B27. Possessing this gene does not mean you will definitely develop AS, but a large majority of people with the condition do have it. It is thought that an environmental trigger, such as a bacterial infection, might set off the inflammatory process in genetically susceptible individuals.

Recognising the Symptoms

The experience of ankylosing spondylitis is unique to each person, but there are common patterns. The most characteristic symptom is chronic pain and stiffness in the lower back and buttocks. This is often worse in the mornings and after periods of inactivity, and it tends to improve with movement and exercise. This is a key feature that helps doctors distinguish it from more common, mechanical back pain, which often feels worse after activity.

Beyond the signature back pain, you may experience a range of other symptoms:

• Pain and stiffness in other areas: This can include the neck, shoulders, hips, ribs, heels, and other joints. Pain in the rib cage can make deep breathing uncomfortable.
• Fatigue: A profound and pervasive sense of tiredness that is not relieved by rest is a very common and often debilitating aspect of living with a chronic inflammatory disease. The body is constantly expending energy to deal with the underlying inflammation.
• Enthesitis: Inflammation where tendons attach to bone can cause sharp pain, for example in the heel, making it difficult to walk.
• Uveitis or Iritis: This is inflammation of the eye, which causes pain, redness, blurred vision, and sensitivity to light. It requires urgent medical attention to prevent damage to your vision.
• Postural changes: Over time, the stiffening of the spine can lead to a stooped or forward-hunched posture. Maintaining good posture through conscious effort and targeted exercise is a key part of managing the condition.

The course of AS is variable. For some, it remains a relatively mild condition causing intermittent pain. For others, it is a progressive disease leading to significant stiffness and disability. This unpredictability underscores the importance of a proactive and consistent management strategy.

Medical Diagnosis and Established Treatments

If you suspect you may have ankylosing spondylitis, a thorough medical evaluation is essential. A diagnosis is typically made by a rheumatologist, a specialist in diseases of the joints, muscles, and bones. The process usually involves several components.

First, your doctor will take a detailed medical history, asking about the nature of your pain, when it started, what makes it better or worse, and whether you have a family history of AS or related conditions. A physical examination will follow, where the doctor assesses your spinal flexibility, checks for tender points, and looks at your posture.

To confirm the diagnosis and rule out other conditions, certain tests are used. Blood tests can look for markers of inflammation, such as C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR). A test for the HLA-B27 gene may also be performed. While its presence is not definitive, it adds a significant piece to the diagnostic puzzle. Imaging is crucial. X-rays of the sacroiliac joints and spine can reveal characteristic changes, although in the very early stages of the disease, these may not be visible. A magnetic resonance imaging (MRI) scan is more sensitive and can detect inflammation in the joints and bones long before permanent changes are visible on an X-ray.

Once a diagnosis is confirmed, the goal of treatment is to relieve pain and stiffness, reduce inflammation, prevent joint fusion and deformity, and maintain function and quality of life. There is no cure for AS, so management is a lifelong process. The cornerstone of treatment is physiotherapy and regular exercise. A tailored programme of stretching and strengthening exercises helps to maintain spinal mobility, improve posture, and reduce pain.

Medication also plays a central role.

• Non-steroidal anti-inflammatory drugs (NSAIDs) are usually the first line of treatment to help with pain and stiffness.
• For those who do not respond well to NSAIDs or who have more severe disease, biologic therapies are often recommended. These are powerful drugs, such as TNF-alpha inhibitors, that target specific molecules in the immune system responsible for inflammation.

Exploring the Potential of Whole-Body Cold Therapy

Within this established medical framework, where does a supportive modality like whole-body cold therapy fit? It is vital to state clearly that cold application is not a treatment or a cure for ankylosing spondylitis. It is a wellness and recovery service that some people use to help manage their symptoms, particularly pain and stiffness, alongside their medically prescribed plan. Our service in Memmingen provides a specific, controlled form of cold application.

The underlying idea is to use an extreme, dry cold stimulus (-110 °C) for a very short period (around three minutes) to trigger a cascade of physiological responses. When your body is exposed to such intense cold, it initiates powerful self preservation reflexes.

The first immediate response is peripheral vasoconstriction. The blood vessels in your skin and extremities constrict powerfully to draw blood away from the surface and towards the vital organs at your core. This process is designed to conserve heat and protect your core temperature. This rapid change in blood flow and skin temperature is thought to have several potential follow on effects.

Many people who use whole-body cold therapy report a significant, albeit temporary, reduction in the sensation of pain. This is partly explained by the cold slowing down the speed at which nerve signals, including pain signals, travel. Furthermore, the intense cold stimulus may trigger the release of endorphins, the body's natural pain relieving chemicals. For someone dealing with the chronic pain of AS, this may provide a welcome window of relief.

From an inflammatory perspective, which is central to AS, the theoretical benefits of cold therapy are being actively investigated. The systemic inflammation in AS is driven by proteins called cytokines. Research in other contexts, mainly in sports recovery, suggests that cold application might influence the levels of these pro-inflammatory and anti-inflammatory markers [7]. The hypothesis is that by modulating these pathways, cold therapy might help to temper the inflammatory response. This is a key area of ongoing research. After the session ends and you step out of the chamber, the blood vessels dilate again, leading to a return of blood flow to the periphery that many users describe as an invigorating or warming sensation.

What the Research Shows

When we look at the specific use of cold therapy for inflammatory rheumatic conditions like ankylosing spondylitis, it is crucial to approach the scientific evidence with a calm and critical eye. The research field is developing, but it is not yet mature. The studies available often have limitations, such as small numbers of participants, short observation periods, or a lack of a control group for comparison. Nevertheless, some findings provide a basis for cautious optimism and further investigation.

A systematic review from 2014 analysed the existing literature on cryotherapy for inflammatory rheumatic diseases [1]. The authors concluded that whole-body cold therapy seemed to induce temporary pain-relieving effects and was generally well-tolerated. They noted that regular application over two to three weeks could lead to improvements in pain and disease activity scores. However, they also highlighted the great variety in the studies they reviewed, with different protocols and outcome measures, making it difficult to draw firm, universal conclusions. The review stressed the need for larger, more methodologically sound randomised controlled trials to confirm these initial positive signals.

More directly relevant is a 2021 study that specifically included patients with axial spondyloarthritis, the category that includes ankylosing spondylitis [2]. In this clinical investigation, participants underwent a programme that combined physical activity with sessions of whole-body cold therapy. The researchers measured disease activity using established clinical scores, such as the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI). The results indicated a significant reduction in these disease activity scores following the intervention period. The study suggests that whole-body cold therapy, when used in conjunction with an exercise programme, may be a beneficial supportive therapy for patients. It is important to acknowledge the limitations here: the sample size was modest, and the design did not isolate the effects of cold therapy from the effects of the exercise programme. It is possible that the combination was key.

Other research helps us understand the potential mechanisms. Studies on athletes have shown that whole-body cold exposure can influence levels of inflammatory markers and hormones related to stress and recovery [7]. A critical review from 2014 also discusses the physiological theories, such as the impact on nerve conduction velocity for pain relief and the potential modulation of inflammatory pathways [6]. While this research provides a plausible biological rationale, the authors rightly emphasise that many of the proposed mechanisms still require more direct evidence, especially in clinical populations as opposed to healthy athletes. We must be careful not to simply transfer findings from sports science directly to a complex autoimmune condition without specific, dedicated research. In essence, the existing research provides intriguing clues but falls short of definitive proof. It points towards potential benefits for symptom management, particularly when integrated into a broader therapeutic plan including exercise [2], but underscores that more high-quality research is needed.

Your Cold Therapy Session in Memmingen

Knowing the science is one thing; understanding the practical experience is another. A session at our Kryo Memmingen studio is a simple, quick, and highly controlled process. Your safety and comfort are our primary concerns.

Upon arrival, we will first review your health status and ensure you have no contraindications. You will then change into appropriate attire: dry swimwear or underwear, dry socks, gloves, and a headband to protect your ears. We provide clogs, gloves, and head protection. It is essential that both your skin and clothing are completely dry to ensure the cold is experienced safely and effectively.

You will then step into the pre-chamber, which is typically set to a less extreme temperature, for about 30 seconds to acclimatise. From there, you enter the main cryotherapy chamber, where the air is cooled with vortex technology to a stable -110 °C. The air is very dry, which is why the temperature feels surprisingly tolerable compared to, for instance, a damp, windy winter day in the Allgäu. During your stay of approximately three minutes, you will be in constant visual and verbal contact with our trained staff. To promote circulation, you will be encouraged to turn slowly on the spot.

The sensation is one of intense, crisp cold on the surface of your skin. It is not painful, but it is certainly powerful. As your session ends, you will step out of the chamber, and the feeling that follows is often described as invigorating. A pleasant tingling sensation spreads across your skin as blood flow returns to the surface. Many of our guests report an immediate feeling of alertness and a noticeable reduction in stiffness and muscular aches.

Safety and Important Considerations

While whole-body cold therapy is generally well-tolerated, it is not suitable for everyone. It is a powerful physiological stimulus, and certain pre-existing conditions are considered contraindications. It is absolutely essential that you consult with your doctor or rheumatologist before beginning cold therapy, especially as you are managing a chronic condition like ankylosing spondylitis.

Key contraindications include:

• Uncontrolled severe high blood pressure
• Recent heart attack or stroke
• Heart conditions such as unstable angina or heart failure
• Severe circulatory disorders, such as Raynaud's syndrome
• Deep vein thrombosis
• Acute febrile illness or infections
• Cold allergy (cold urticaria)
• Pregnancy

This list is not exhaustive. A thorough discussion with your treating physician is the only way to determine if whole-body cold therapy is a safe and appropriate option for you. It is a wellness service intended to support your overall health and recovery efforts, not a medical treatment. Your medical team, who understands the full picture of your health, must be part of the decision making process.

Frequently asked questions

What does a whole-body cold therapy session actually feel like?

The feeling is of an intense, dry cold on your skin, but it is not typically painful. The three minute duration is short, and you will be moving slightly to keep warm. Most people find it surprisingly manageable and even invigorating, especially the warming sensation that occurs after leaving the chamber.

How often should I consider cold therapy for support?

This is highly individual and should be discussed with your health provider. Many of our guests with chronic conditions begin with an initial series of sessions in relatively close succession to gauge their body's response, before settling into a less frequent maintenance schedule that fits their lifestyle and needs.

Is whole-body cold therapy a cure for ankylosing spondylitis?

No, absolutely not. Ankylosing spondylitis is a chronic autoimmune condition for which there is currently no cure. Whole-body cold therapy is a non-medical, supportive modality that may help with managing symptoms like pain and stiffness, but it does not treat the underlying disease and must not replace any part of your prescribed medical care.

What is the research evidence for cold therapy and AS?

The evidence is emerging and should be interpreted with caution. Some studies, including a systematic review [1] and a clinical investigation involving patients with axial spondyloarthritis [2], suggest benefits for pain and disease activity. However, these studies have limitations, and more robust research is needed to confirm the effects and optimal protocols.

Why is my doctor's approval so important?

Your doctor understands your specific health profile, your medications, and the activity of your ankylosing spondylitis. A powerful stimulus like extreme cold can have wide-ranging effects on the body, particularly the cardiovascular system. Your doctor's approval ensures that trying cold therapy is a safe choice for you, without risk of interfering with your condition or treatments.

What should I wear during the session?

You will wear minimal, dry clothing such as a swimsuit or underwear. We provide you with dry socks, clogs, gloves, a mask for your mouth and nose, and a headband to protect your extremities and sensitive areas from the extreme cold. All jewellery must be removed.

Are there any side effects?

The most common effects are temporary redness and tingling of the skin as it rewarms. The process is very safe when contraindications are respected and procedures are followed correctly. Our trained staff monitor you throughout the entire session to ensure your wellbeing.

More on Pain & joints

• A Guide to Back Pain and Supportive Cold Therapy