Office MSD prevention: exercises and best practices

MSDs: a silent epidemic in offices

Musculoskeletal disorders, or MSDs, are the leading cause of occupational disease in France. They affect muscles, tendons, nerves, and joints, primarily in the back, shoulders, neck, elbows, and wrists. In 2024, they accounted for 87% of occupational diseases recognised by the national health insurance system.

Office work, long considered physically undemanding, is in fact a fertile ground for these conditions. Sitting for 7 to 8 hours a day in front of a screen imposes prolonged static loads on the body. Muscles fatigue, postures deteriorate, and tensions accumulate. The problem is that MSDs develop gradually. A slight stiffness in the neck. A recurring tension between the shoulder blades. A tingling in the wrist. These subtle signals are often ignored until the pain becomes chronic.

Prevention works. Simple exercises, a properly set up workstation, and a few daily habits are enough to reduce the risk considerably.

Understanding the mechanisms behind office-related MSDs

To prevent a problem, you first need to understand what causes it. In the office, MSDs result from a combination of several factors.

Prolonged static posture

The human body is designed for movement. Maintaining a seated position for hours puts the intervertebral discs under constant pressure, shortens the hip flexors, weakens the postural muscles, and reduces blood flow to the lower limbs. Even a so-called "perfect" posture becomes harmful if held too long without interruption.

Repetitive movements

Typing on a keyboard and using a mouse repeatedly engages the same small muscles and tendons in the forearm and hand, thousands of times a day. This repetition without adequate rest causes micro-injuries that accumulate over time. Carpal tunnel syndrome and wrist tendinitis are the best-known consequences.

Stress and muscular tension

Psychological stress translates directly into the body. Shoulders tighten. Jaws clench. Neck muscles contract. This permanent, often unconscious muscular tension sets the stage for neck pain and tension headaches. A stressful work environment multiplies the risk of MSDs regardless of workstation ergonomics.

Setting up your workstation: the adjustments that matter

Before talking about exercises, let us verify that your workstation is not working against you. A poorly adjusted chair or screen can cancel out the benefits of any exercise routine.

The chair

Adjust the height so your feet are flat on the floor and your thighs are parallel to the floor. The knees form an angle of roughly 90 degrees. The backrest supports the curve of your lower back. If your chair does not have built-in lumbar support, a small rolled-up towel does the job. Armrests, when present, should allow your shoulders to stay relaxed, neither raised nor drooping.

The screen

The top of the screen should sit at eye level. The distance is about an arm's length, roughly 50 to 70 centimetres. If you wear progressive lenses, lower the screen by a few centimetres to avoid tilting your head back. A screen that is too low forces neck flexion. A screen that is too high causes cervical extension. Both lead to pain within a few weeks.

Keyboard and mouse

Place the keyboard directly in front of you, at a distance that keeps the elbows close to the body. The wrists stay in line with the forearms, without bending up or down. The mouse goes right next to the keyboard, not 30 centimetres off to the side. The further the mouse is from the body, the more the shoulder works in abduction, which promotes shoulder and elbow tendinitis.

Prevention exercises to do at your desk

These exercises take just a few minutes, require no equipment, and can be done right at your workstation. Ideally, take an active micro-break every 45 to 60 minutes. It takes 3 minutes and makes a real difference over time.

For the neck and cervical spine

Sitting upright, slowly tilt your head towards the right shoulder. Hold for 15 seconds. Return to centre. Repeat on the left. Then turn your head to the right as if looking over your shoulder. Hold for 15 seconds. Do the same on the left. Finish with a chin-to-chest flexion, hands behind the head to gently guide the movement. These stretches release the upper trapezius and the suboccipital muscles, two areas that frequently build tension in screen workers.

For the shoulders and upper back

Roll your shoulders backwards in large circles. 10 rotations. Then cross your arms in front of you and grab the opposite shoulders. Pull the elbows downward to stretch the upper back between the shoulder blades. Hold for 20 seconds. Next, clasp your hands behind your back, arms straight, and lift them slightly while opening the chest. Hold for 15 seconds. This movement counterbalances the rounded posture that screen work imposes.

For the wrists and forearms

Extend one arm in front of you, palm facing up. With the other hand, gently pull the fingers downward to stretch the top of the forearm. Hold for 15 seconds. Then flip the palm downward and pull the fingers towards you to stretch the underside of the forearm. Same duration. Repeat on the other side. Then perform 10 rapid open-and-close hand movements, spreading the fingers as wide as possible on each opening. These actions stimulate circulation in the channels through which the wrist tendons and nerves pass.

For the lower back and hips

Sitting on the edge of your chair, place the right ankle on the left knee. Lean forward with a straight back until you feel the stretch in the right buttock. Hold for 20 seconds. Switch sides. This stretch targets the piriformis, a deep hip muscle that shortens when seated and can compress the sciatic nerve.

Stand up, place your hands on your lower back, and push your hips forward while arching slightly. Hold for 5 seconds. Repeat 5 times. This lumbar extension offsets the prolonged flexion imposed by sitting.

For the legs and circulation

Standing behind your chair, rise onto your toes and lower slowly. 15 repetitions. Then bend the knees with a straight back, like a half-squat, and stand back up. 10 repetitions. These movements restart circulation in the lower limbs and activate the calf and thigh muscles that go dormant during prolonged sitting.

Building good daily habits

Exercises lose their effectiveness if performed within a context of poor general habits. Here are the changes that have the greatest impact.

The 45-minute rule

Every 45 minutes, stand up. Fetch a glass of water. Walk a few steps down the corridor. Stretch for 2 minutes. This regular interruption is enough to significantly reduce the mechanical loads associated with static posture. Set a reminder on your phone if you tend to forget.

Alternate your postures

If you have access to a sit-stand desk, alternate between the two positions every 30 to 45 minutes. Standing is not inherently better than sitting: it is the alternation that protects you. Standing for too long fatigues the lower back and strains the leg veins. Sitting for too long compresses the discs and stiffens the hips. Varying is winning.

Move outside of work

Thirty minutes of moderate physical activity per day, 5 days a week. That is the WHO recommendation. Brisk walking, cycling, swimming, or a home strengthening programme are all viable options. Regular physical activity improves the body's tolerance to the demands of the workstation. A body that moves in the evening tolerates the next day's stillness far better.

Manage stress

Stress-related muscular tension does not resolve with stretches alone. Diaphragmatic breathing is a simple, quick tool. Inhale through the nose, expanding the belly, for 4 seconds. Hold for 4 seconds. Exhale through the mouth for 6 seconds. Repeat 5 cycles. This technique activates the parasympathetic nervous system and releases muscular tension within minutes. Practise it at every break, at the start of a stressful meeting, or before a difficult call.

Warning signs you should not ignore

MSDs develop gradually. Recognising the early signs allows you to act before the pain becomes entrenched.

• Morning stiffness in the neck, shoulders, or fingers lasting more than 30 minutes.
• A dull ache between the shoulder blades that appears systematically at the end of the day.
• Tingling in the fingers, especially the thumb, index, and middle finger (median nerve territory).
• Elbow pain radiating into the forearm during keyboard use.
• Recurring headaches that start at the base of the skull and travel towards the forehead.

If these symptoms persist despite ergonomic adjustments and exercises, see your GP or a physiotherapist. Early treatment prevents the transition to chronicity, which takes much longer to address.

The role of the employer in MSD prevention

MSD prevention does not rest solely on the shoulders of the employee. Employers have a legal obligation to protect the physical health of their teams. This means providing ergonomic furniture, raising awareness among managers, designing workspaces thoughtfully, and allowing active breaks without guilt.

Companies that invest in MSD prevention benefit on every front: less absenteeism, better productivity, and stronger attractiveness to candidates. The figures speak for themselves: a study by France's National Research and Safety Institute (INRS) showed that every euro invested in MSD prevention returns between 2 and 7 euros in direct and indirect savings.

A realistic weekly programme

Here is a simple structure you can maintain over the long term.

• Every day at the office: active micro-breaks every 45 minutes (3 minutes of exercises from the list above).
• Monday and Thursday: a 20-minute strengthening session (planks, push-ups, squats, band rows) to build overall muscular resilience.
• Wednesday: a 15-minute mobility and stretching session targeting sensitive areas (neck, shoulders, hips, wrists).
• Weekend: a physical activity of your choice for 30 to 45 minutes. Walking, cycling, swimming, yoga, it does not matter. Enjoyment in movement is the best guarantee of consistency.

This programme does not require expensive equipment or a major time commitment. What it does require is consistency. MSDs do not develop in a day, and their prevention is not accomplished in a single session. It is the accumulation of small daily actions that makes the difference between a body that holds up and one that gives out. Start today, even with just one exercise. Your back, shoulders, and wrists will thank you in ten years.