In this article
What happens to your back when you sit
Sitting is not a neutral position for your spine. Biomechanics studies measure an increase in intradiscal pressure of around 40% compared to standing. In practical terms: sitting for 8 hours compresses your lumbar discs as if you were carrying an extra load all day long.
What fatigues first is not the discs themselves but the postural muscles: the multifidus, quadratus lumborum, and spinal erectors. These muscles are built to hold your spine for a few minutes, not to maintain a fixed posture for hours. They fatigue, tighten, and leave your back without active support. That is where pain sets in.
Additional intradiscal pressure in a seated position compared to standing.
Maximum recommended time in a fixed position before changing posture or standing up.
Remote work has made the situation worse for many patients I see in Geneva. Domestic furniture is not designed for 8 hours of work: kitchen tables are too low, sofas tip the pelvis backward, laptops placed flat force the neck down. Each compromise adds up.
Two types of pain, two different responses
Before talking about solutions, a useful distinction. If your pain only appears after a period of stillness and disappears when you move, it is usually a postural problem: ergonomics and movement are generally enough. If the pain radiates into a leg, is present at rest or wakes you at night, or increases with specific movements, that is a signal of a structural condition that deserves a proper assessment.
Pain that radiates into the leg, wakes you at night, or shows no improvement after 4 weeks is not something a lumbar cushion will fix. That is the moment to book an appointment.
The 3 adjustments that actually make a difference
Most ergonomics guides list ten parameters. In practice, three adjustments cover 80% of problems.
1. Screen height
This is the most neglected and most impactful adjustment. The top edge of your screen should be at eye level. Not below, not above. If you tilt your head 15° downward for 8 hours, you are placing a load equivalent to around 12 kg on your neck continuously. The tension in your trapezius muscles that you blame on stress often starts here.
On a laptop: use a raised stand with an external keyboard. This is the single investment with the best return for your back.
2. Lumbar support
Your back naturally curves forward at the lumbar level. Most office chairs eliminate that curve. The result: you gradually slump, your pelvis tilts backward, and the lumbar discs are compressed at the front. A lumbar cushion or a well-adjusted backrest maintains that curve without muscular effort.
The right adjustment: if you place a flat hand between your lower back and the backrest, you should feel light contact, neither a gap nor strong pressure.
3. Seat-to-desk distance
Your forearms should rest on the desk without having to raise your shoulders. If you are reaching forward to the keyboard, your trapezius muscles are working constantly. Bring the keyboard closer, pull your chair in.
| Element | Correct position | Common mistake |
|---|---|---|
| Screen | Top edge at eye level | Too low (laptop flat on desk) |
| Lumbar region | Natural curve maintained | Pelvis in retroversion, rounded back |
| Forearms | Resting on desk, shoulders relaxed | Keyboard too far, trapezius tense |
| Feet | Flat on floor, knees at 90° | Crossed or dangling |
Why moving is more effective than taking a break
The usual logic: wait until it hurts, then take a break. The logic that works better: move before it hurts.
Intervertebral discs have no direct blood supply. They are nourished through imbibition: the alternating compression and decompression that comes with movement circulates nutrients into the disc. A fixed posture, even a perfect one, deprives your discs of this mechanism. Movement is not a remedy for pain. It is what prevents pain from developing in the first place.
Every 45 minutes, stand up for 2 to 3 minutes. Not necessarily to "do exercises": get a glass of water, call a colleague standing up, walk around the room. The goal is decompression, not performance.
The 3-minute express routine
If you can do three things when you stand up, do these:
- Walk for 30 seconds around the room. Just walk, no goal.
- Shoulder rolls: 5 backward circles, slowly, full range.
- Standing lumbar extension: hands in the small of your back, gently lean backward. 5 repetitions. (see next section)
Lumbar extension: the movement most people don't know
The McKenzie Method (MDT) is one of the best-documented approaches for lower back pain. One of its core principles: identify your "directional preference", meaning the movement that centralises your pain rather than spreading it.
For the vast majority of people with office back pain, that directional preference is extension. This makes sense: if you spend your days in flexion (sitting), the movement you are missing is extension. And it is often the one that relieves.
Robin McKenzie discovered this mechanism by accident in 1956, when he left a patient in extension on a tilted table. A patient who had suffered from radiating leg pain for weeks stood up without pain.
The basic McKenzie exercise (Ex4: standing extension)
Stand with feet shoulder-width apart. Place your hands in the small of your lower back, fingers pointing down. Slowly lean backward, as if trying to look at the ceiling. Hold for 2 seconds, return gently. Repeat 10 times.
If the pain decreases or moves toward the centre of your back during the exercise, that is a good sign: continue. If it moves down into the leg or increases, stop and book an appointment. Never push into a direction that makes things worse.
Applied every 2 hours during an acute episode, this exercise can resolve a crisis in a few days. Used preventively every 45 minutes at the office, it protects your discs over the long term.
When to see a physiotherapist in Geneva
The advice in this article applies to mechanical office pain without complications. But it has limits.
Book an appointment if:
- Pain lasts more than 2 to 3 weeks despite ergonomic adjustments
- It radiates into a leg (sign of sciatic or femoral nerve irritation)
- It is present at rest or wakes you at night
- You have tingling or weakness in the lower limbs
- It comes back regularly in the same circumstances
A physiotherapy assessment identifies precisely which structure is involved and sets up a plan tailored to your back, not a generic one. In Switzerland, you can consult without a doctor's referral for an initial evaluation.
Has your pain been going on too long?
A consultation in Geneva will help you understand what is happening and get a programme adapted to your situation. No referral needed.
Or read our page on back pain in Geneva
Frequently asked questions
Sitting increases intradiscal pressure by approximately 40% compared to standing. Holding this posture for several hours compresses your discs, fatigues your postural muscles and creates tension zones, particularly in the lumbar region and trapezius muscles. Add poor ergonomic setup, and the conditions are in place for chronic pain.
Screen height. The top edge should be at eye level. This is the single adjustment that corrects the most problems at once: neck, trapezius, shoulder position, lumbar lordosis. Everything else follows from there. If you are working on a laptop flat on a desk, this is your first priority.
When pain lasts more than 2 weeks despite ergonomic adjustments, radiates into a leg, or keeps coming back in the same circumstances. An assessment identifies the precise cause rather than managing symptoms indefinitely. In Switzerland, you can book without a doctor's referral.
It is one of its main areas of application. The method identifies your directional preference, the movement that centralises your pain. For the majority of people with office back pain, that direction is extension. A few minutes of lumbar extension mobilisation is often enough to resolve an acute episode. In consultation, the MDT assessment confirms whether this is your case and which exercise to use.
Often yes. Domestic furniture is not designed for 8 hours of work: kitchen tables too low, sofas that tip the pelvis backward, laptops placed flat. Each compromise adds up. Since 2020, the patients I see in Geneva present far more neck and lower back pain related to workstation setup than before.
Samuel Monderer
Physiotherapist in Geneva, specialising in sports pathologies and manual therapies (Master's, UCLouvain). Trained in the McKenzie Method (MDT), Mézières and fascial instrument-assisted techniques. Learn more