Any body position can cause discomfort and fatigue if it is maintained for long periods of time.
Standing, for example, is a natural body posture, and by itself poses no particular health hazards. However, working for long periods in a standing position can cause sore feet, general muscular fatigue, and low back pain. In addition, improper layout of work areas, and certain tasks can make workers use unnatural standing positions. Two aspects of body position can contribute to injuries. The first relates to body position.