Work which does not require a lot of muscular power and which can be performed within a limited area should be done in a sitting position. It should be possible to reach the entire work area without unnecessary stretching or twisting. A good sitting position means that the person is sitting straight in front of and close to the work. The work table and chair should be designed so that the working surface is jus about the same level as the elbows with the back straight and the shoulders relaxed. For precision work, if possible, some form support for the elbows, forearms or hands should be provided. The support should b adjustable.
The work chair
The design of the chair should satisfy certain basic requirements. The chair chosen should suitable for the job being done and the height the worktable. It should be possible to adjust the height of the chair. Sufficient “leg room” is necessary to allow free change of leg position. The chair height is most comfortable when the feet are placed flat on the floor. When this is not possible, a foot rest can sometimes help to ad to seating comfort. But it should be sufficient large to allow the feet to be placed on it in several different positions.