The term “ergonomics” is derived from two Greek words: “ergon,” meaning work, and “nomoi,” meaning natural laws. Ergonomists study human capabilities in relationship to work demands.
In recent years, ergonomists have attempted to define postures which minimize unnecessary static work and reduce the forces acting on the body. All of us could significantly reduce our risk of injury if we could adhere to the following ergonomic principles:
All work activities should permit the worker to adopt several different, but equally healthy and safe postures.
Where muscular force has to be exerted it should be done by the largest appropriate muscle groups available.
Work activities should be performed with the joints at about mid-point of their range of movement. This applies particularly to the head, trunk, and upper limbs.