Sitting position and desk height
Ensure that you are sitting correctly by training yourself to sit up straight, with all your weight on your bottom and your back firmly against your chair. Also, it is important to adjust your chair height to match your desk. Be sure that the desk itself is not too high or too low, as this is one of the major causes of back pain.
Computer screen height
Place the monitor at eye level. Keep the keyboard and mouse a little lower down to ensure that the shoulders are not lifted too high or the back bent forwards. Furthermore, adjust the monitor brightness so that the eyes are not strained, as this will further reduce any stress.
Foot placement
After you adjust your seat’s height to match desk height, check your feet’s position. If they are hanging in the air, try to find a place to rest them. You could use a strong box, old book or anything that allows the feet to rest at a natural height. In other words, your feet should not be hanging down from the chair, neither should the knees be overextended.
Moving around
Try to change positions and move your body as often as possible. Stand up and walk around every hour to stretch your muscles. This can also involve a visit to the bathroom, getting a drink of water, going to speak with your boss or chatting to colleagues.
Stretching the hip muscles
Those who sit for extended periods of time frequently suffer from back pain. This is because sitting long hours causes the hip flexor muscle groups, which are responsible for supporting us as we lean forwards, to contract so much that they eventually cease up. Then, when we stand up, the bones located in the lower section of our spine are pulled out of this position. As a consequence, it may cause back pain. Muscle stretches focusing on this area, such as the half kneeling stretch, can help in this regard. One way to stretch is to place the leg on the side you want to stretch behind you, while the other leg is extended out in front. Then, shift your weight forwards onto that leg until you feel a tightness in the opposite hip. You may feel a tightness in the lower spine too, but this shouldn’t be painful.