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 : Correction posturale : pourquoi « se tenir droit » lâche
The short answer. Straightening up by willpower works, but only as long as you’re thinking about it. Your posture is largely regulated automatically, and steering it consciously takes attention, a limited resource. As soon as a call, a screen or a conversation claims that attention, your usual organization takes back the controls. Posture correctors don’t escape this logic: a strap works while it pulls, a vibrating reminder sends you back to your willpower. During the Test Posture Parfaite, you’re asked for no effort: we observe your organization before and while you wear a circuit, in centimeters.
“Stand up straight”: an order your body only follows while you’re watching
You know the scene. You catch your reflection in a shop window, you straighten up, open your shoulders, tuck your chin. Then your phone rings, you answer, and three minutes later you’re back in exactly the same shape as before. You didn’t decide to slump. You simply stopped monitoring.
The problem isn’t that you lack willpower, but that you’re trying to drive by hand a system that, most of the time, runs without you. And as long as the solution is “keep it in mind”, it stops the moment your mind goes elsewhere.
Your posture runs on autopilot, and steering it costs attention DOCUMENTED
- Balance uses attention. A review by Woollacott and Shumway-Cook (2002) brings together dual-task studies: standing or walking while doing something else. Even in young adults, cognitive factors play a role in controlling balance while standing and walking. The attention demand varies with the complexity of the task and the type of secondary task, and in older adults, adding a second task reduces stability.
- Thinking about your own movements gets in the way of automatic regulation. In an experiment on a tilting balance board, Wulf, McNevin and Shea (2001) asked one group to focus on their own movements and the other on the effect of the movement (the board). The group focused on their body generally made larger balance errors and showed longer reaction times to a side signal. The authors read this as less automatic control: focusing on your own movements interferes with the processes that normally regulate the movement without you thinking about it.
The gist: your body knows how to stand without you. When you take over, you pay in attention, and it always ends up going somewhere else.
In short, what you could take from these studies: “standing up straight” by willpower is manual steering that stops when you let go of the wheel.
Straps and vibrating reminders: what the research actually shows DOCUMENTED
The strap. In a randomized trial, Cole et al. (2013) fitted 38 healthy overhead athletes who had a forward-head, rounded-shoulder posture. One group wore a compression shirt with its straps fully tensioned, the other the same shirt with no strap tension. With the straps tensioned, the forward shoulder angle decreased, measured on photographs. Changes in muscle activity were small and highly variable. The study measured posture with and without the brace, in the same session: it says nothing about what remains after weeks of wear.
The vibrating reminder. A systematic review of 37 articles (Simpson et al., 2019) looked at worn sensors that track spinal posture, some of which give live feedback (a vibration, for example) when poor posture is sustained. The authors’ conclusion: in a clinical setting, these devices measure posture with good accuracy. The idea that long-term use improves posture is presented as a hypothesis, and long-term use still needs validating.
What this means for you: the strap works while it pulls. The vibrating reminder flags the slump, then it’s your willpower again that straightens you up, until the next distraction. In both cases, these studies don’t show a posture correction that holds once the tool stops. We don’t either, and we tell you so below.
What we look at in the Test Posture Parfaite, without asking you to straighten up
The Test Posture Parfaite takes fifteen minutes with a certified tester, and it needs no equipment. You stand as you normally do, with no effort to straighten up, and we compare before and while you wear the circuit:
- 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.
If it shows nothing, the test is refunded.
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. You’re asked for no effort to straighten up: you stand as you normally do, and it’s this spontaneous organization we observe while the circuit is worn, not an instruction. The test doesn’t put you in a dual task: we haven’t measured what happens to this organization while you’re on the phone or working at a screen.
Functional assessment, non-medical · Before/after protocol · Observations from internal tests · Individual results vary · Not a medical claim.
With a 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. We promise you no lasting correction. We show you what can be seen while the circuit is worn, without asking you to think about it.
FAQ
Why can’t I stand up straight for long?
Because your posture is largely regulated automatically, and steering it consciously takes attention. As soon as your attention goes elsewhere, your usual organization takes over again.
Does a strap posture corrector work?
In a trial of 38 healthy athletes whose shoulders rolled forward, a shirt with tensioned straps brought the shoulders slightly back, measured while it was worn. The study says nothing about what remains once the strap comes off.
Do vibrating reminders help you straighten your posture?
Worn sensors measure posture well in a clinical setting, according to a 2019 systematic review. But the idea that long-term use improves posture remains a hypothesis to be validated. And it’s still you who has to straighten up at every vibration.
How do I fix my posture without thinking about it?
No one can promise you a posture fixed for good. What you can check: during the Test Posture Parfaite, we observe your organization before and while you wear a circuit, with no effort on your part, in centimeters and out of 7. We promise nothing about your posture through the day: we show you what can be seen, standing, while the circuit is worn.
Does the posture correction seen during the test remain when I take the circuit off?
No. It concerns how the body is organized while the circuit is worn. Take the circuit off, and you’re back where you started: support, not cure. Functional assessment, non-medical · Individual results vary.
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.
Stop holding yourself straight by willpower. Come and see how you organize yourself when you’re not thinking about it: book your Test Posture Parfaite, refunded if it shows nothing.
Sources
- Woollacott M, Shumway-Cook A. Attention and the control of posture and gait: a review of an emerging area of research. Gait Posture. 2002;16(1):1-14. https://doi.org/10.1016/s0966-6362(01)00156-4
- Wulf G, McNevin N, Shea CH. The automaticity of complex motor skill learning as a function of attentional focus. Q J Exp Psychol A. 2001;54(4):1143-1154. https://doi.org/10.1080/713756012
- Cole AK, et al. Scapular bracing and alteration of posture and muscle activity in overhead athletes with poor posture. J Athl Train. 2013;48(1):12-24. https://doi.org/10.4085/1062-6050-48.1.13
- Simpson L, Maharaj MM, Mobbs RJ. The role of wearables in spinal posture analysis: a systematic review. BMC Musculoskelet Disord. 2019;20(1):55. https://doi.org/10.1186/s12891-019-2430-6
