Three-dimensional lifting model for non-homogeneous loads.
A 3-dimensional model and analysis methodology is suggested for treating lifting tasks when unbalanced loads are involved. The paper describes the biomechanical equations that are coupled with the worker's posture geometry, to address a practical problem of non-symmetric lifting. The analysis has a dominant biomechanical modeling scope, as it contains a breakdown of the internal lifting forces resulting from posture and external loads acting on the body. The load model represents the acting forces due to unbalanced lifting, which is commonly found in industrial situations. The suggested model allows the user to simulate the influence of the practical load distribution, aiding safe design of a lifting job.
Gilad
Issachar
I
Faculty of Industrial Engineering and Management, Technion--Israel Institute of Technology, Haifa, Israel. igilad@ie.technion.ac.il
Boughanim
Daniel
D
D019567:Back Injuries / Q000517:prevention & control*; D001696:Biomechanical Phenomena; D006804:Ergonomics; D006801:Humans; D007557:Israel; D017770:Lifting / Q000009:adverse effects; D008161:Lumbosacral Region; D008953:Models, Anatomic; D009784:Occupational Diseases / Q000517:prevention & control*; D005082:Physical Exertion / Q000502:physiology*; D011187:Posture / Q000502:physiology