Meat plant worker
The picture shows a worker in a meat plant cutting with a knife. The knife force is 50 N and varies in direction as indicated by the red arrow. The worker is resting his left hand on the table and the model automatically computes the forces transferred to the table. Please notice that it is not necessary to measure this support force except for model validation purposes.
Clicking the picture will play a video that illustrates the muscle activations in response to varying knife forces.