Desk Ergonomics and Lower Back Protection

Reviewed by Dr. Kshitij Chaudhary, Last reviewed October 2026

Sitting is not harmful in itself. The trouble starts when you sit still and slouched for hours. This is a sample program to set up your desk and move through your working day. It does not replace an individual plan from your doctor or physiotherapist.

Why does sitting strain your lower back?

Sitting loads your discs more than standing does, and slouching loads them more still. When you slump, your lower back loses its natural inward curve and the front of each disc takes the pressure. Long, still sitting also lets your deep core muscles switch off, so your discs and ligaments do the work your muscles should be doing.

When you slouch, your pelvis rolls back and you end up sitting on your tailbone instead of your sit bones. Your buttock muscles also switch off while you sit, so your ligaments hold you up instead of your muscles.

Movement breaks fix much of this. They let your discs take up fluid again and wake your muscles up.

Before you start

• Check with your doctor or physiotherapist first if you have had back surgery, have leg pain, numbness or weakness, or are unsure.
• Move gently. Mild stretch or tiredness is normal. Sharp or worsening pain is not.
• If you have a slipped disc with pain running down your leg, skip the forward-bending stretches (Exercises 3 and 4) and ask your doctor first.

Step 1: Set up your desk

1. Seat height. Adjust your chair so your feet rest flat on the floor, with hips and knees at about a right angle and thighs level. Sit on your sit bones, the two hard points at the base of your pelvis, not on your tailbone. Sit evenly on both hips. Use a firm footrest if your feet do not reach.
2. Lower back support. Place your chair's lumbar support, or a firm rolled towel, in the small of your back. It should keep a gentle inward curve and stop your pelvis rolling backwards.
3. Armrests. Set them so your elbows rest at a right angle with shoulders relaxed.
4. Screen. Place it straight in front of you, at arm's length. The top third of the screen sits at eye level. This keeps your head from drifting forward and strains your neck less.
5. Keyboard and mouse. Keep them near the front edge of the desk so your upper arms hang beside your body. Reaching forward rounds your shoulders and upper back. Type with your forearms level and your wrists straight and floating above the keyboard. Do not rest your wrists on the desk edge or a wrist pad while you type.

If you use a standing desk

Standing still for long hours tires your lower back too.

1. Change your stance often.
2. Rest one foot on a small block, footrest or low stool.
3. Swap feet every few minutes.

Raising one foot eases the arch in your lower back.

Step 2: Move through your day

• Every 30 minutes, stand up and move for about 2 minutes. Set a phone reminder.
• Turn with your chair. Do not twist your lower back while seated. Swivel the chair or shift your feet so your head, chest and hips turn together.
• You can do these office stretches or try the Brugger's relief position.

Sit down and stand up with a hip hinge

Stops you rounding your lower back every time you get up.

1. Stand in front of your chair with feet hip-width apart.
2. Gently tighten your lower tummy.
3. Push your hips back, as if closing a door with your bottom. Keep your back straight.
4. Lower yourself onto the chair. To stand, do the same in reverse.

Every time you sit down or stand up.

Step 3: Reset your posture

The four-step posture reset

Gives your spine a braced, neutral start before you sit, stand for long or lift.

1. Stand tall. Squeeze your buttocks firmly, then let go to a gentle hold. This brings your pelvis to neutral.
2. Draw your lower ribs down over your pelvis, so your lower back is not over-arched. Gently tighten your lower tummy, at about 20% effort. Keep breathing normally.
3. Turn your palms forward and your thumbs out, draw your shoulders back, then rest your hands by your sides. Keep the shoulder position.
4. Slide your head straight back so your ears sit over your shoulders.

Do this before you sit, stand for long or lift, and whenever you notice slumping.

Step 4: Stretch at your desk

Exercise 1: Standing back extension

Eases the stiffness that builds up after long sitting.

1. Stand with feet shoulder-width apart.
2. Place your hands on your lower back, fingers pointing backwards.
3. Gently arch backwards, pushing your hips slightly forward. Stay in a comfortable range.
4. Return to upright.

5 to 10 slow repetitions, every 1 to 2 hours.

If you have had back surgery, ask your surgeon before doing this one.

Exercise 2: Seated pelvic rocks

Helps you find your neutral spine and wakes up your deep core.

1. Sit near the front edge of your chair with feet flat and hands on your thighs.
2. Roll your pelvis backwards to flatten your lower back.
3. Roll it forwards to arch your lower back.
4. Ease back to the middle. This halfway position is your neutral spine.

10 smooth repetitions.

Exercise 3: Seated hamstring stretch

Loosens the back of your thigh, which pulls on your pelvis when it is tight.

1. Sit on the front edge of your chair.
2. Stretch one leg out in front, heel on the floor, toes pointing up.
3. Keep your chest lifted and your back straight.
4. Hinge forward from your hips until you feel a mild stretch behind your thigh. Do not round your lower back.

Hold 15 to 30 seconds on each leg. Repeat 2 to 3 times.

Exercise 4: Seated figure-4 stretch

Releases the buttock and outer hip.

1. Sit tall with feet flat on the floor.
2. Cross your right ankle over your left knee.
3. Keep your back flat and hinge forward from your hips until you feel a stretch across your right buttock.
4. Repeat on the other side.

Hold 15 to 30 seconds on each side. Repeat 2 to 3 times.

Step 5: Your daily 10 to 15 minute routine

Do it in one go or in short bursts through the day.

Exercise 5: Couch stretch

Opens hips that tighten from sitting and takes pull off your lower back.

1. Kneel on a cushion beside a wall or sofa. Rest one shin up the wall or against the sofa back.
2. Step your other foot forward, with the knee at a right angle.
3. Squeeze the buttock of the back leg so your lower back does not arch.
4. Lift your chest upright, gently tighten your lower tummy and breathe deeply.

Build up to 2 minutes on each side.

Exercise 6: Upper back foam roll

Loosens a stiff upper back so your lower back does less work.

1. Lie back with a foam roller across your upper back.
2. Clasp your hands behind your head and keep your lower ribs gently down.
3. Roll slowly from your mid-back towards the base of your neck.
4. Pause on a stiff spot and lean back over the roller for 30 seconds, breathing deeply.

30 seconds on each stiff spot.

Skip this one if you have osteoporosis or a spine fracture. If you have had back surgery, ask your surgeon first.

What should you avoid?

• Sitting still for more than 30 minutes.
• Rounding your lower back as you sit down or get up.
• Twisting your lower back while seated.
• Reaching forward for your keyboard or mouse.
• Resting your wrists on the desk while you type.
• Slumping onto your tailbone.
• Pushing a stretch into pain.

How soon will you see benefits?

Many people notice less stiffness within a few weeks of a better set-up and regular breaks. No set-up can promise a life without back pain. See common myths about low back pain and The Back Pain Guide for the bigger picture.

Is a daily workout enough?

A workout is good for you, but it does not cancel out hours of sitting. Short movement breaks through the day matter as much.

Do you need a special chair?

No. Adjust the chair you have. A rolled towel, a footrest and a few minutes of setting up do most of the work. The same rolled towel helps in your car seat: see Back Pain in Mumbai Traffic: How to Set Up Your Car Seat.

Can you do these after a slipped disc or surgery?

Many people can, but ask your surgeon or physiotherapist when to start. After surgery, your rehab plan sets sitting limits for the early weeks. See rehab after lumbar discectomy. To learn about the condition, read herniated disc.

Your daily plan

• Stand and move for about 2 minutes every 30 minutes.
• Reset your posture before you sit, stand for long or lift.
• Spend 10 to 15 minutes on the couch stretch and foam roll.
• Cut optional sitting. Stand for phone calls and walk during meetings.

When should you see a doctor?

See your doctor if:

• back pain or leg pain keeps getting worse
• you have new numbness, tingling or weakness in a leg
• pain does not change with position or rest, or wakes you at night
• there is no improvement after 4 to 6 weeks of regular breaks and a corrected set-up