By Nicolas Desjardins, PhD in Natural Medicine · DBA(c) · Master’s in Neuroscience (in progress), designer of the Q-Technology system. Nicolas Desjardins is not a medical doctor. October 2026.
Lire cet article en français : Posturologue : ce qu’un bilan postural mesure vraiment
The short answer. With a posturologist, the postural assessment looks at how your body organizes itself when you stand: from the front, the side and the back, with clinical tests and sometimes a platform that records your sway (stabilometry). It is a valuable snapshot of your organization at a given moment. The research is nuanced: the eye alone varies from one practitioner to another, the platform is reliable under strict conditions, and one review found no data on whether clinical posture assessments can detect a change. The Test Posture Parfaite doesn’t replace this assessment, it complements it: in fifteen minutes, it compares your organization before and while you wear a circuit, on three planes, in centimeters, and it identifies your biophysical profile.
What a posturologist looks at during a postural assessment
Posturology is about how your nervous system organizes your body to stay upright. The assessment varies with the practitioner and their core training, but the same building blocks often come up:
- standing observation, from the front, the side and the back: the height of the shoulders and pelvis, the position of the head;
- clinical tests, standing or moving;
- a look at the inputs of the postural system: the feet, the eyes, sometimes the jaw;
- sometimes, a stabilometry platform, which records how your center of pressure moves while you stand still.
This work has value, and we respect it all the more because the Q-Technology system is part of a posturology curriculum. So the real question isn’t “assessment or no assessment”, but: what does it really measure, and how reliably? If you have scoliosis, the difference between structure and organization matters even more: we explain it here.
The practitioner’s eye: what the research shows DOCUMENTED
- From photographs, by eye, clinicians agree poorly. In a study from the University of Saskatchewan, 28 clinicians (chiropractors, physical therapists, physiatrists, rheumatologists and orthopedic surgeons) classified, from photographs, the curve of the neck and lower back of 36 people: normal, increased or decreased. A given clinician agreed only fairly with themselves from one rating to the next (mean kappa 0.50), and clinicians agreed poorly with each other (mean kappa 0.16) (Fedorak et al., 2003). No posturologist was part of this group, and rating a photograph is not a full assessment.
- What a systematic review recommends. Woldendorp et al. (2022) identified 41 studies and 32 clinical methods for assessing standing and sitting posture. Reliability is the most studied aspect; validity much less, and the authors found no data on the ability to detect a change. Based on a moderate level of evidence, the authors make a tentative recommendation for direct observation of global posture by a trained observer applying a rating scale.
What to remember: a visual assessment is only as good as the eye, the training and the scale of the person doing it. Even done well, it describes a state: this review found no data on its ability to detect a change.
The stabilometry platform: reliable, under specific conditions DOCUMENTED
Stabilometry measures how your center of pressure moves while you stand still on a platform.
- A systematic review of 32 studies found acceptable test-retest reliability in 26 of them (Ruhe et al., 2010). But under conditions: at least 90 seconds of recording for most parameters, and averaging three to five trials on a firm surface. No single parameter proved clearly more reliable than the others.
- A more recent review of 40 studies in healthy adults identifies sway area and path length as the most reliable parameters. The authors still note that absolute reliability was not always optimal (variation above 10%), and that only 4 studies reached the highest methodological quality (Hébert-Losier and Murray, 2020).
What this means for you: a platform used well gives solid numbers on how you sway. It doesn’t tell you how your pelvis and shoulders tilt on three planes, or whether your strength tests hold.
What the Test Posture Parfaite adds to your assessment
We promise nothing for your health. We show you what can be measured, before and while you wear the circuit, during the Test Posture Parfaite (fifteen minutes, with a certified tester, no equipment):
- the tilts of the pelvis and shoulders on three planes, in centimeters;
- neck rotation, scored out of 7 on each side;
- strength and stability tests, right and left, holding or giving way.
The test measures neither your balance on a platform nor how your weight is distributed under your feet, and it doesn’t replace a postural assessment. If it shows nothing, it is refunded.
Done properly, our protocol gives the same result from one tester to another: two certified testers who follow the protocol reach the same profile and the same tests holding or giving way (field observation, not yet a published study). And it compares you with yourself, in the same session: you see the centimeters, you feel the tests hold or give way.
What we observe OBSERVATION: while the circuit is worn, we observe a postural correction during the test: tilts decrease, neck rotation evens out, tests that gave way now hold.
Functional assessment, non-medical · Before/after protocol · Observations from internal tests · Individual results vary · Not a medical claim.
Four biophysical profiles. The test also identifies your profile. Three profiles each respond to one calibration: Q-Alpha, Q-Theta and Q-Omega. The Q-Pro is calibrated to the measured profile, and a wrong profile never gives perfect posture. The fourth, Harmonia, refers to the tested person who responds to none of the three: for them, we recommend the Q-Go. With the calibrated Q-Pro, 199 people out of 200 reach perfect posture (field observation, not audited).
Passive · Non-invasive · No battery · No electrode | Functional observations from internal tests | Individual results vary | Not a medical claim.
Our hypothesis HYPOTHESIS: the passive resonant circuit removes nothing and blocks nothing. It gives the nervous system a coherent, stable reference. This is a hypothesis about the mechanism, and it may be wrong.
Support, not cure. While you wear the circuit, the effect is there. Take it off, and you’re back where you started, like glasses: you wear them, you see; you take them off, you don’t. Your postural assessment remains your starting reference.
FAQ
What is a postural assessment?
It is an evaluation of how your body organizes itself when you stand: observation from the front, the side and the back, clinical tests, sometimes a stabilometry platform. Its content varies with the practitioner.
Is a postural assessment reliable?
It depends on the method. Rated by eye from photographs, the curve of the neck and lower back showed poor agreement between clinicians; a review tentatively recommends a trained observer applying a rating scale. Stabilometry is reliable under specific conditions: a long enough recording and several averaged trials.
Does the Test Posture Parfaite replace an assessment with a posturologist?
No, it complements it. The assessment describes your organization. The test compares your organization before and while you wear a circuit, and identifies your biophysical profile.
What is a biophysical profile?
It is the calibration your organization responds to during the test: Q-Alpha, Q-Theta or Q-Omega. The Q-Pro is calibrated to the measured profile. A wrong profile never gives perfect posture.
What if I don’t respond to any profile?
About one person in two hundred doesn’t reach perfect posture, whatever calibration is tried (field observation, not audited). This is the Harmonia profile, and for them we recommend the Q-Go. Passive · Non-invasive · No battery · No electrode | Functional observations from internal tests | Individual results vary | Not a medical claim.
How can I check for myself?
Book a Test Posture Parfaite: fifteen minutes, €33, with a certified tester. You compare before and after, on your own body. If it shows nothing, it is refunded.
Your postural assessment described you. Come and see how you organize while wearing a circuit calibrated to your profile: book your Test Posture Parfaite, refunded if it shows nothing.
Sources
- Fedorak C, Ashworth N, Marshall J, Paull H. Reliability of the visual assessment of cervical and lumbar lordosis: how good are we? Spine. 2003;28(16):1857-1859. https://doi.org/10.1097/01.BRS.0000083281.48923.BD
- Woldendorp KH, et al. Quality and usability of clinical assessments of static standing and sitting posture: A systematic review. J Back Musculoskelet Rehabil. 2022;35(2):223-238. https://doi.org/10.3233/BMR-200073
- Ruhe A, Fejer R, Walker B. The test-retest reliability of centre of pressure measures in bipedal static task conditions: a systematic review of the literature. Gait Posture. 2010;32(4):436-445. https://doi.org/10.1016/j.gaitpost.2010.09.012
- Hébert-Losier K, Murray L. Reliability of centre of pressure, plantar pressure, and plantar-flexion isometric strength measures: A systematic review. Gait Posture. 2020;75:46-62. https://doi.org/10.1016/j.gaitpost.2019.09.027
