Desk break · 90 seconds · do every hour

The 90-second desk break before back pain locks in

Three stretches, standing, at your desk. Designed for the moment around 2pm when you realise your back has decided to lock up if you keep sitting. Doesn't require a mat. Doesn't require a meeting room. Takes 90 seconds.

Why this works (and why ten minutes of sitting straighter doesn't)

The lumbar paraspinals fatigue under sustained low-grade load. Posture correction is a one-time fix that decays within minutes; the real problem is the static load on the discs and the cumulative deactivation of the glutes. This sequence does three things: extends the spine in the opposite direction to your seated posture (counter-flexion), wakes the hip flexors and the glutes (which decompresses the lumbar load), and resets the QL.

The sequence (do all three, in order)

Standing back extension

15 seconds × 2

Stand with hands on your low back, fingers pointing down. Push your hips forward and gently arch backward, looking up at the ceiling. Hold 15 seconds. Lower. Repeat.

Reverses 8 hours of forward flexion. Provides the McKenzie extension cue without going to the floor. If pain shoots down a leg here, stop and try seated knee-hugs instead.

Standing hip flexor lunge (against the desk)

20 seconds × 2 (each side)

Step your right foot back about 80 cm, keep the heel down, gently drop your hips forward until you feel a stretch at the front of your right hip. Hold 20 seconds. Switch sides.

Wakes the psoas, which has been short for hours. Releasing the front of the hip is how you unload the lumbar paraspinals — they overwork specifically because tight hip flexors pull the pelvis into an anterior tilt.

Glute squeeze + side bend

10 seconds × 2 (each side)

Standing, squeeze your glutes hard. Hold the squeeze and reach your right arm up and over to the left, feeling a stretch through the right side of your back from rib to hip. Hold 10 seconds. Switch.

The glute squeeze re-activates a muscle group that has been switched off for hours; the side-bend addresses the QL specifically. Two birds one stone.

If you have 5 more minutes

The 5-minute beginner routine on this site is the next step up. Same principle, deeper holds, full sequence with audio cues so you can do it eyes-closed.

Questions

How often should I do the 90-second break?

Every 60 to 90 minutes of continuous sitting is the sweet spot. Twice a day catches the worst of it. Every hour is ideal but requires reminders. Set a calendar invite, a phone alarm, or a Pomodoro timer.

Does standing instead of sitting fix it?

Standing desks help a little but not as much as the marketing suggests. Static standing for hours produces a different set of problems — calf and lower-back fatigue. The real fix is varying posture, which this routine forces.

Can I do this in front of colleagues?

All three are unobtrusive enough for an open-plan office. Standing back extension is the most visible but takes 10 seconds. If self-conscious, do the seated knee-hug version of stretch 1 and the wall-leans for stretches 2 and 3.

If desk sitting is your main exposure, set this on repeat

Two things actually move the needle: (1) doing this every hour rather than once a day, (2) doing the 5-minute routine in the morning before sitting down. The two together cost 12 minutes a day. Daily back pain costs more than that in lost focus.

You can also install this site to your phone home screen (it works offline as a PWA) so the routine is one tap away. The streak counter on the homepage will keep you honest.