Introduction

For many adults, sitting takes up a surprisingly large part of the day. You may sit while travelling to work, spend hours in front of a computer and then sit again while eating, watching television or using your phone.

If your lower back regularly feels stiff or sore after a long day, prolonged sitting may be one factor contributing to the discomfort.

Singapore health guidance identifies prolonged sitting and sedentary habits among factors that may contribute to low back discomfort. However, back pain is rarely explained by one habit alone.

Muscles, joints, ligaments, discs, physical activity, previous injuries, repetitive movements and the demands of your daily routine can all influence how your back feels.

A practical approach is therefore not to fear sitting, but to avoid staying in one position for excessively long periods and to keep regular movement in your day.

Your lower back supports your upper body during many everyday activities, including sitting, standing, bending, walking and lifting.

When you remain seated for a long time, your body stays relatively still. Depending on your position, chair and workstation, certain muscles and tissues may remain under sustained load.

Leaning forward towards a laptop, sitting without adequate support or repeatedly twisting to reach items can make long periods of desk work less comfortable.

The problem is not that sitting is automatically harmful. Sitting is a normal human activity. The bigger issue is often spending many hours with too little variation in posture or movement.

Lower back pain can involve muscles, ligaments, joints, discs or nerves, and sometimes there is no single obvious cause.

Long periods of sitting may contribute to symptoms, but other factors can also matter.

A generally inactive lifestyle, repetitive lifting, frequent bending, previous injuries and certain physical demands at work can all affect the back.

Some people develop discomfort after lifting something awkwardly. Others notice stiffness after several hours at a computer. Some experience recurring back pain even when they cannot identify one particular trigger.

This is why it can be useful to look at your entire daily routine rather than focusing only on the chair you use.

A workstation that does not fit your body comfortably can make long periods of sitting more physically demanding.

An adjustable chair can help you find a position where your feet are supported and your lower back feels comfortable.

Your computer screen should also be positioned so that you do not repeatedly need to lean forward or twist your neck and upper body just to see it clearly.

Frequently used items such as your keyboard, mouse, phone and documents should be reasonably easy to reach.

Ergonomics does not mean forcing everyone into exactly the same position. It means adjusting the work environment so that it suits the person using it and allows comfortable movement.

One of the simplest changes for people who work at a desk is to interrupt long periods of sitting.

A movement break does not have to be a workout. Standing up, walking to refill your water, moving around the office or gently changing position can interrupt a long period of inactivity.

Regular movement also gives muscles and joints a chance to work through different positions instead of remaining relatively still for hours.

If you become absorbed in work and regularly forget to move, consider using a timer or linking movement to activities that already happen throughout your day.

For example, you could stand during certain phone calls, walk to speak with a colleague instead of messaging or take a brief walk after lunch.

Posture can affect comfort, but the idea that there is one perfect sitting position that prevents all back pain is too simple.

Even a comfortable posture can become uncomfortable when it is held for a very long time.

Rather than forcing yourself to remain rigidly upright for hours, aim for a supported position that feels comfortable and change your posture periodically.

If you notice that one position consistently makes your symptoms worse, adjust your setup and avoid remaining in that position unnecessarily.

Persistent or recurring pain may benefit from assessment by a healthcare professional or physiotherapist, particularly if simple adjustments do not help.

Regular physical activity supports general health and can also help maintain strength, mobility and physical function.

Activities such as walking can be a simple way to increase daily movement, especially for people whose jobs involve prolonged sitting.

Strengthening exercises may also help improve the capacity of muscles involved in supporting and moving the trunk, hips and legs.

Flexibility and mobility exercises can be useful when they are appropriate for the individual, although no single stretch or exercise is suitable for every type of back pain.

If you already have significant, persistent or recurring back pain, a physiotherapist can help determine which exercises are suitable for your symptoms and abilities.

Managing back discomfort often involves several small changes rather than one dramatic solution.

Start by avoiding unnecessarily long periods in the same position. Alternate between sitting, standing and walking when your work allows it.

If you regularly lift objects, keep the load close to your body and avoid sudden twisting while carrying something heavy.

Regular exercise can help maintain overall strength and fitness, while a comfortable workstation may reduce unnecessary physical strain during desk work.

If you work from home, avoid spending the entire workday on a sofa or bed if those positions consistently make you uncomfortable. A more supportive work setup may be easier on your body.

Sleep, stress, physical activity, body weight and the physical demands of your job may also influence musculoskeletal discomfort, so consider your routine as a whole.

Many episodes of uncomplicated lower back pain improve, but certain symptoms deserve medical assessment.

Speak with a healthcare professional if your pain is persistent, progressively worsening, significantly limiting normal activities or repeatedly returning.

Medical assessment is also important if back pain is accompanied by significant weakness, numbness or tingling in the legs, unexplained fever or unexplained weight loss.

Back pain following a significant injury or fall should also be assessed when symptoms are severe or concerning.

New problems controlling your bladder or bowels, numbness around the groin or saddle area, or major weakness in the legs require urgent medical attention.

Should You Rest When Your Back Hurts?

When your back hurts, lying down may feel comfortable for a while. However, staying completely inactive for long periods is generally not the best approach for uncomplicated back pain.

Where symptoms allow, gentle movement and normal everyday activities can help you remain mobile.

This does not mean pushing through severe pain. Activities should be adjusted according to your symptoms, and movements that significantly worsen pain should be modified.

If pain prevents normal movement or is accompanied by weakness, numbness or other concerning symptoms, seek medical advice.

Do You Need an X-Ray or MRI?

Not everyone with back pain requires an X-ray, MRI or other imaging test.

Healthcare professionals usually begin by asking about the symptoms, how the pain started and whether there are warning signs that suggest a more serious cause.

A physical examination can provide useful information about movement, strength, sensation and the possible source of symptoms.

Imaging may be recommended when the clinical assessment suggests that further investigation is needed.

The decision should therefore be based on your individual symptoms and medical assessment rather than assuming every episode of back pain requires a scan.

What If Your Back Pain Keeps Returning?

Recurring back pain can be frustrating, particularly when your work requires long periods at a computer or repeated physical tasks.

Look for patterns. Symptoms may appear after especially long sitting periods, heavy lifting, reduced physical activity or repetitive movements.

A physiotherapist or other healthcare professional can assess your movement, symptoms and daily activities and help identify practical changes.

Management may include appropriate exercise, movement education, workstation adjustments and strategies for gradually returning to normal activity.

The goal is not only to reduce discomfort for one day, but to improve your ability to move, work and manage future episodes more confidently.