Fibromyalgia is a chronic and often invisible condition, yet its widespread pain, fatigue, and sleep disturbances profoundly disrupt daily life. Among the most challenging situations for those affected is prolonged sitting, which intensifies muscle pain, increases joint stiffness, and further disrupts pain regulation mechanisms.
Multiple causes, still under debate
The causes of fibromyalgia remain complex and multifactorial. Several contributing factors are now recognized in the scientific literature: dysregulation of the central nervous system (central sensitization), genetic predisposition, viral or bacterial infections (such as Lyme disease or parvovirus B19), physical or psychological trauma (abuse, post-traumatic stress), and more rarely, anatomical abnormalities such as Chiari malformation. These factors, often combined, alter how the brain processes pain and interact with immune, sensory, and endocrine systems. In summary, fibromyalgia cannot be reduced to a psychological condition or a simple lesion, but rather reflects a global imbalance between the brain, body, and trauma-related memory.
Multiple and disabling symptoms
Fibromyalgia is a systemic condition with numerous manifestations:
- Chronic musculoskeletal pain: similar to musculoskeletal disorders (MSDs), affecting the shoulders, back, sacrum, thighs, and legs, sometimes asymmetrically.
- Acute flare-ups: internal burning sensations, stiffness, and unpredictable sharp pain that exacerbate symptoms, sometimes localized in the perineum, coccyx, or shoulder blades.
- Chronic fatigue and non-restorative sleep: one of the core features of the condition, worsened by neurological hypervigilance.
- Fibro fog: cognitive impairments (memory, concentration) often described as “brain fog.”
- Increased sensitivity to noise, light, odors, and even light pressure or clothing.
- Other symptoms: digestive disorders, menstrual pain, anxiety, and mood disturbances.
Musculoskeletal pain at the core of fibromyalgia
Although fibromyalgia is now recognized as a complex systemic syndrome, it most commonly manifests as chronic musculoskeletal pain. These pains are comparable to MSDs and primarily affect the shoulders, lower back, sacrum, knees, wrists, and cervical spine. A review from the MSD Manual confirms that musculoskeletal symptoms are predominant in the majority of patients [MSD Manuals].
An analysis cited in the Inserm collective expert report on fibromyalgia indicates that at least 80% of patients experience chronic myofascial pain with localized hypersensitivity [Inserm, 2020]. Other studies report even higher prevalence of musculoskeletal symptoms: Rosa-González et al. (2020) observed that reducing sitting time could improve perceived pain intensity and quality of life [Rosa-González et al., 2020].
Body hypersensitivity that makes sitting difficult
Fibromyalgia is characterized by a disruption in how the central nervous system processes pain. According to Inserm, this leads to what is known as “central sensitization,” meaning an exaggerated response to stimuli that are normally not painful [Inserm, 2020].
See box: Why does pain become uncontrollable in fibromyalgia?
This phenomenon is often accompanied by neurosensory dysregulation: the body can no longer properly interpret signals related to pain and movement. The nervous system becomes hyper-reactive, amplifying pain perception even in the absence of active tissue damage. Prolonged sitting, by limiting the body’s natural adjustments, worsens this disorganization. The result: diffuse pain (back, buttocks, legs), burning sensations, tingling, or numbness—sometimes intensified by simple immobility.
A recent clinical study confirms that individuals with fibromyalgia show significant impairment in sit-to-stand performance, reflecting increased muscular strain and poorly compensated postural effort [Missemer et al., 2023].
???? Why does pain become uncontrollable in fibromyalgia?
Research shows that in people with fibromyalgia, the brain is no longer able to “switch off” pain. Three mechanisms are involved:
- ???? Pain regulation systems are impaired: brain regions responsible for modulating pain (such as the orbitofrontal cortex) no longer function properly.
- ???? The brain keeps looping pain signals: like a feedback loop, pain persists even after the initial trigger (effort or stress) has resolved.
- ???? Modulation is reversed: under stress, pain increases instead of decreasing (hyperalgesia).
This phenomenon is sometimes referred to as neurosensory dysregulation. It helps explain why fibromyalgia does not respond well to conventional approaches. Innovative solutions, such as Aporia®, aim to recalibrate body perception and restore sensory balance.
A complex response to a complex condition
1. Address musculoskeletal dysfunction first
Aporia® primarily targets musculoskeletal disorders, present in the vast majority of people with fibromyalgia. Its patented technology acts on the biomechanical foundations of sitting posture: tension release, self-regulation of balance, and postural realignment. Through its stability cone, it enables micro-adjustment movements that mobilize the muscular chain without pain and relieve areas under constraint. This structural rebalancing is a key step in interrupting the inflammatory cycle.
2. Reactivate deep physiological functions
But Aporia® goes beyond that. It also acts as a deep tissue activator. Its continuous dynamics promote gentle fascial mobilization, revascularization of fibrotic areas, and restoration of tissue glide. These effects are particularly relevant in fibromyalgia, where tissues are often “locked” by chronic inflammation. Aporia® supports the body in a process of release and active recovery, far beyond passive comfort.
3. Reprogram neurosensory circuits
Finally, fibromyalgia involves long-term disruption of sensory circuits. Aporia® acts as a tool for neurosensory re-education. Unlike static cushions that provide passive, top-down input, Aporia® triggers an active feedback loop: bottom-up sensory inputs stimulate the brain to recalibrate balance, rebuild body awareness in space, and exit the state of pain-related hypervigilance. This dynamic feedback supports a progressive reorganization of pain patterns.
Conclusion: a biomechanical approach to everyday comfort
Fibromyalgia is not “all in the head.” It is a neurological, inflammatory, and muscular reality. Any lasting improvement depends on a global approach—and that begins with addressing musculoskeletal imbalances related to posture.
Aporia® transforms prolonged sitting into an active, self-regulated posture. It restores comfort, improves joint freedom, and helps break the vicious cycles of pain. It can therefore become a valuable daily support for people with fibromyalgia, alongside other therapeutic approaches.
???? Try Aporia® to change your daily experience
Discover the ergonomic solution adapted to fibromyalgia and try it at home.
Written by: Gil AYACHE — R&D and Innovation, Blue Portance
Publication date: June 2025
Sources:
- Inserm – Collective expertise on fibromyalgia, 2020
- HAS – Fibromyalgia orientation report, 2010
- Ameli.fr – Fibromyalgia health overview
- MSD Manuals – Musculoskeletal disorders and fibromyalgia
- CDC – Centers for Disease Control and Prevention, Fibromyalgia Overview
- Pastor-Mira, M.A. et al. (2021), Complementary Therapies in Clinical Practice
- Missemer, É. et al. (2023), Clinical Biomechanics
- Rosa-González, M. et al. (2020), Complementary Therapies in Clinical Practice
- Ivaldi, P. – Dynamic balance and pain management, Back School, 2023
- Gyorfi M. et al., Biomedicines (2022) — Central sensitization
- Ovrom E.A. et al., Biomedicines (2023) — Genetic predisposition
- Jurado-Priego L.N. et al., Biomedicines (2024) — Infectious triggers
- Yavne Y. et al., Seminars in Arthritis and Rheumatism (2018) — Trauma
- Watson N.F. et al., Neurosurgery (2011) — Rare anatomical conditions
- Thibault R.T. et al., NeuroImage: Clinical (2023) — Pain control networks
- Pastor-Mira M.A. et al., Scientific Reports (2023) — Pain rumination
- Nikolajsen L. et al., European Journal of Pain (2022) — Hyperalgesia
- Liew S.L. et al., Brain Stimulation (2022) — Neuromodulation