BACKGROUND: Experimental studies suggest that flexed working postures reduce passive
support of the spine, which could represent a significant risk factor for the development of …

Occupations involving frequent trunk flexion are associated with a higher incidence of low
back pain. To investigate the effects of repeated static flexion on trunk behaviors, 12 …

Neuromuscular factors that contribute to spinal stability include trunk stiffness from passive
and active tissues as well as active feedback from reflex response in the paraspinal …

BACKGROUND: Full flexion lumbar postures maintained over a prolonged period of time
have been shown to lead to changes in the supporting passive structures of the spine and it …

Objectives. To determine if repeated spinal flexion and loading modulate the deactivation of
lumbar muscles near full flexion (flexion–relaxation). Design. Repeated measures …

Experimental studies suggest that prolonged trunk flexion reduces passive support of the
spine. To understand alterations of the synergy between active and passive tissues …

Prolonged trunk flexion alters passive and active trunk tissue behaviors, and exposure-
response relationships between the magnitude of trunk flexion exposure and changes in …

Trunk flexion results in adverse mechanical effects on the spine and is associated with a
higher incidence of low back pain. To examine the effects of creep deformation on trunk …

Objective. To review the literature that evaluates the influence of trunk motion on trunk
strength and structural loading. Background. In recent years, trunk dynamics have been …

In many occupational settings (eg agriculture and construction) workers are asked to
maintain static flexed postures of the low back for extended periods of time. Recent research …