The phycical effort:
It is a worsening factor if:
- The lifting are to be executed uneven/asymmetric relative to the body
- The lifting is suddenly started or suddenly braking
- The lifting is going on i high speed
- The spine is twisted, bended forward or to the side or both simultaneously.
The load will increase with the level of bending, twisting and the duration , and if You have to reach out for the load
- The arms are lifted, especially if they are lifted at or above shoulderheight
- Lifting from low height. It's not only the load to be lifted, but the whole body
- Lifting from the side or with one hand.The spine will be loaded app. twofolded as lifting in front of the body and with two hands
- The load must be situated accurately. This will increase the duration and the load of the lifting