Lumbopelvic bridging tasks elicited robust bilateral activation in motor regions during bilateral bridging and contralateral activation during unilateral bridging, with significant functional connectivity across the sensorimotor network.
Observational (n=19)
No
Does the performance of different lumbopelvic bridging tasks elicit distinct patterns of brain activation and functional connectivity in healthy individuals?
Lumbopelvic bridging tasks activate a medial sensorimotor network with task-specific lateralization but uniform functional connectivity, providing a baseline for future neuroimaging research in chronic low back pain.
p-value: p=<0.05
There are a limited number of neuroimaging investigations into motor control of the lumbopelvic musculature. Most investigation examining motor control of the lumbopelvic musculature utilize transcranial magnetic stimulation (TMS) and focus primarily on the motor cortex. This has resulted in a dearth of knowledge as it relates to how other regions of the brain activate during lumbopelvic movement. Additionally, task-based functional connectivity during lumbopelvic movements has not been well elucidated. Therefore, we used functional magnetic resonance imaging (fMRI) to examine brain activation and ROI-to-ROI task-based functional connectivity in 19 healthy individuals (12 female, age 29.8 ± 4.5 years) during the performance of three lumbopelvic movements: modified bilateral bridge, left unilateral bridge, and right unilateral bridge. The whole brain analysis found robust, bilateral activation within the motor regions of the brain during the bilateral bridge task, and contralateral activation of the motor regions during unilateral bridging tasks. Furthermore, the ROI-to-ROI analysis demonstrated significant connectivity of a motor network that included the supplemental motor area, bilateral precentral gyrus, and bilateral cerebellum regardless of the motor task performed. These data suggest that while whole brain activation reveals unique patterns of activation across the three tasks, functional connectivity is very similar. As motor control of the lumbopelvic area is of high interest to those studying low back pain (LBP), this study can provide a comparison for future research into potential connectivity changes that occur in individuals with LBP.
Jordon et al. (Wed,) conducted a observational in Healthy (n=19). Lumbopelvic motor tasks (bilateral and unilateral bridging) vs. Rest was evaluated on Task-based functional connectivity and BOLD activation (p=<0.05). Lumbopelvic bridging tasks elicited robust bilateral activation in motor regions during bilateral bridging and contralateral activation during unilateral bridging, with significant functional connectivity across the sensorimotor network.