The correct sitting in front of the computer protects the person from back pain

The word that occurred as an adverb in the sentence is?

The answer is: Before 

Sitting in front of the computer properly is essential to prevent back pain. When people set up their work space, they should make sure they can sit comfortably and maintain correct posture. This means that the computer should be at the correct level, and the keyboard and mouse should be close to their bodies so they can reach them easily. They should also make sure that their feet are flat on the floor and that their back is supported. By setting up their workspace in this way, people can ensure they stay comfortable and free from back pain.