The purpose of this study was to assess the possible role of muscles in offsetting the anterior
shear forces caused by the load and upper body mass and their accelerations that act on the …

This work describes a dynamic model of the low back that incorporates extensive anatomical
detail of a three-dimensional musculo-ligamentous-skeletal system. The reactive moment …

This study was done to assess the interplay between muscular and ligamentous sources of
extensor moment during dynamic lifting with various loads and flexion angles of the trunk …

A dynamic biomechanical human model is presented which allows the quantification of
mechanical parameters such as torque, compressive and shear forces, and pressure at the …

The purpose of this study was to determine whether regression equations could be
developed, as an alternative to biochemical models, to predict the peak L4 (L5 disc …

During the full flexion phase of the back lift movement the lumbar part of the crector spinae
muscle exhibits a reduced activity level (flexion relaxation). This study addresses the …

Factors affecting compressive and shear forces and torque at the L5/S1 vertebral joint were
examined for nine different load/lifting-speed combinations during performances of a …

The lumbodorsal fascia (LDF) has been implicated in numerous biomechanical
interpretations of low back mechanics as a tissue that provides support to the lumbar spine …

Flexion–extension moments acting at the L5/S1 level and hip joints were calculated using
three different techniques; a pure static analysis, a static analysis including the inertial force …

A combined approach involving optimization and the finite element technique was used to
predict biomechanical parameters in the lumbar spine during static lifting in the sagittal …