Work was done.
Check Point.
1. Stand (Stand) low or too high desk. And to extend the time or not.
2. To lift off the conveyor belt. To twist or not.
3. Take part in the manner the law of nature or not.
4. Work is in the body can’t move freely on the scaffold or bad or not.
5. The sitting to standing and vice versa all the time or not.
2.Work was done.
Check Point.
1. The height of a chair, desk job performance. The office desk. A high level. Stretching the spine can be straight or not.
2. The distance between the desk and chair with a narrow belt. The twist is that it does not work.
3. Due to insufficient light. The need to bend down to touch the desk too much.