Poor Posture is a major contributing factor to many injuries including Repetitive Strain injuries (like carpal tunnel syndrome), back pain, and neck pain.
Good posture while working at the computer is defined as:
When you slouch in your chair, the inward curve in the lumbar area changes to an outward curve, and the mid back and neck curve increase. Your head is now in front of your shoulders with your chin sticking out (Forward Head Posture), and the shoulders are now in front of the hips (Rounded Shoulders). T he Forward Head and Rounded Shoulder Posture exert three times more force than normal on the postural muscles in the back, neck, and shoulders. The cumulative effect of this working posture is pain and fatigue in the neck and shoulders while working on the computer.
Your body wasn’t designed to stay in very still postures doing very little muscle work for long periods of time. It was made to be either exercising or resting. So, when you sit in a very still posture, you are concentrating and are often stressed, your muscles are not getting a lot of blood pumping through them, and your joints are not moving. The result is stiff, sore muscles and joints.
The easiest short-term fix is to take regular, short exercise and stretching breaks every 20 minutes, with longer, standing breaks every hour. If you time these breaks to occur with normal interruptions, like when the phone rings, they should not affect your productivity. A longer-term solution is to have a proper Ergonomic Assessment. Many employers will pay for this service as well as the changes to your workstations that are recommended as a result of the assessment.
If you have persistent symptoms, consult your Physiotherapist for exercises, positioning advice, and treatment.