- Politique - Envirronnement de travail
Que signifie ergonomie ?
Ergonomics mean adjusting the work to the human being. When adjusting the work to the human being - the employees of the company - it is important to consider muscles and joints.
Where the muscles are concerned,
a distinction is made between static and dynamic work
- With static work, the muscles are under constant strain and become tired quickly. Over longer periods, such strains often lead to disorders in both muscles and sinews.
- With dynamic work, the muscles are alternately stretched and relaxed; the joints move the whole time. This type of work helps the circulation since the muscles receive a constant supply of fresh blood containing oxygen and nourishment.
When considering the joints, these should always be allowed to work in and around their “intermediate position” – their natural resting position. This helps to minimise the load on cartilage in the joints and helps to prevent osteoarthritis.
The shoulder joint works best when the upper part of the arm is kept vertically down. When the load is on the heavy side, the elbows work best at an angle of about 120°. For lighter loads, 90° is suitable.
The wrist performs best when held straight out as an extension of the forearm or bent backward with the thumbs pointing diagonally inwards/upwards.
Finger joints work best when slightly bent.
It is best for the legs to alternate between standing, walking and sitting.
The back works best and is burdened least in standing or upright position; in this position the spine assumes its natural curvature.