The four o’clock backache. You know the one. You have been sitting for six hours, and by mid afternoon your lower back feels like someone poured cement into it. You shift in the chair, you lean back, nothing helps.

I have a two minute routine that actually gets me through the afternoon. It is not magic, and it is not a fix for a serious back problem. But for desk ache, it works.

Why your back hurts at a desk

Sitting for long stretches tightens the hip flexors and weakens the glutes. The muscles pull your pelvis forward, which puts strain on the lower back. You can feel this as that dull ache that builds through the day.

The fix is to undo the sitting position for a few minutes, ideally every hour.

The two minute routine

Do this right at your desk, no equipment needed:

1. Stand up and push your hips forward for 30 seconds. This opens the hip flexors.
2. Reach for your toes, knees slightly bent, for 30 seconds. Feel the hamstrings stretch.
3. Stand tall, clasp your hands behind you, and squeeze your shoulder blades for 30 seconds.
4. Walk in place or do 10 slow squats for the final 30 seconds.

That is the whole routine. Two minutes, four moves, and the cement feeling starts to loosen.

Do it every hour, not just when it hurts

The routine works way better as prevention than cure. Set a timer for once an hour. When it goes off, stand up and run the two minute routine. It feels like a waste of time for the first week, then you notice the afternoons stop hurting.

I set my phone timer and it changed my workdays more than any chair did.

Fix your chair setup too

No stretch can outwork a bad chair position. Your feet should sit flat, knees at 90 degrees, and your monitor at eye level. If your chair does not support your lower back, add a small lumbar cushion or a rolled up towel. That support takes a huge load off the back muscles.

Stand up at least once an hour

The worst part of desk work is the uninterrupted sitting. Even a 30 second stand resets your posture. Stand while you take a call, stand while you read a long email. Your back does not need a gym, it needs breaks from the chair.

When to see someone about it

If the pain is sharp, radiates down your leg, or does not improve with movement, talk to a doctor or physical therapist. Desk stretches are for the dull ache from sitting. A sharp pain can be a different problem entirely.

The four o’clock backache still shows up occasionally when I forget the timer. But it stopped being a daily event, and that is the whole win.