Study Design. A normative, single-group study was conducted. Objective. To determine
whether there is a difference in electromyographic activation of specific lumbopelvic muscles …

Study Design. A normative within-subjects single-group study. Objective. To compare spinal-
pelvic curvature and trunk muscle activation in 2 upright sitting postures (“thoracic” and …

Study Design A single-group comparative study. Objectives To compare lumbopelvic
kinematics and muscle activation patterns while sitting on stable and unstable surfaces …

Study Design. A cross-sectional comparative study between healthy controls and two
subgroups of nonspecific chronic low back pain (LBP) patients. Objectives. To determine …

This preliminary cross-sectional study was undertaken to determine if there were
measurable relationships between posture, back muscle endurance and low back pain …

OBJECTIVE: Sitting has been identified as a cause of mechanical low back pain. The
purpose of this study was to use plain film x-rays to measure lumbar spine and pelvic …

There is evidence that patients with low back pain favor their trunk muscles when moving.
However, it is unknown whether this maladaptive behavior is generalized across different …

BACKGROUND: Seated postures are achieved with a moderate amount of lumbo-sacral
flexion and sustained lumbo-sacral spine flexion has been associated with detrimental …

Study Design. Prospective longitudinal study. Objective. To investigate, using magnetic
resonance imaging (MRI), the influence of bed rest on the lumbopelvic musculature …

Study Design. A prospective study was conducted on a group of patients with unilateral
nonspecific low back pain (LBP) and healthy controls. Objectives. To answer 3 questions:(1) …