A large proportion of industrial injuries result from material handling and lifting tasks. Back injuries occur with great frequency, often cause acute suffering and serious disability in the workers involved, and are extremely costly to the industrial economy. The objectives of this research are: (1) to analyze the three-dimensional force systems that act in the human spine during industrial handling and lifting tasks; (2) to analyze the mechanical stresses within the intervertebral motion segments caused by these systems. Basic features of the program are: (1) the use of computer-generated analogs of the entire thoracolumbar spine and finite-element models of single intervertebral motion segments, and (2) the use of experimental data to ensure that the models are valid, and to confirm predictions made from model obtained results. The results of these studies should lead to significant improvements in understanding how the incidence and severity of industrial back injuries can be reduced.
| Cromwell, R; Schultz, A B; Beck, R et al. (1989) Loads on the lumbar trunk during level walking. J Orthop Res 7:371-7 |
| Scholten, P J; Schultz, A B; Luchies, C W et al. (1988) Motions and loads within the human pelvis: a biomechanical model study. J Orthop Res 6:840-50 |
| Bean, J C; Chaffin, D B; Schultz, A B (1988) Biomechanical model calculation of muscle contraction forces: a double linear programming method. J Biomech 21:59-66 |
| Miller, J A; Schmatz, C; Schultz, A B (1988) Lumbar disc degeneration: correlation with age, sex, and spine level in 600 autopsy specimens. Spine (Phila Pa 1976) 13:173-8 |
| Moroney, S P; Schultz, A B; Miller, J A (1988) Analysis and measurement of neck loads. J Orthop Res 6:713-20 |
| Moroney, S P; Schultz, A B; Miller, J A et al. (1988) Load-displacement properties of lower cervical spine motion segments. J Biomech 21:769-79 |
| Zetterberg, C; Andersson, G B; Schultz, A B (1987) The activity of individual trunk muscles during heavy physical loading. Spine (Phila Pa 1976) 12:1035-40 |
| Schultz, A; Cromwell, R; Warwick, D et al. (1987) Lumbar trunk muscle use in standing isometric heavy exertions. J Orthop Res 5:320-9 |
| Triano, J J; Schultz, A B (1987) Correlation of objective measure of trunk motion and muscle function with low-back disability ratings. Spine (Phila Pa 1976) 12:561-5 |
| Miller, J A; Schultz, A B; Andersson, G B (1987) Load-displacement behavior of sacroiliac joints. J Orthop Res 5:92-101 |
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