Lumbar Intervertebral Kinematics During an Unstable Sitting Task and Its Association With Standing-Induced Low Back Pain. - Viggiani, Daniel; Mannen, Erin M.; Nelson-Wong, Erika; Wong, Alexander; Ghiselli, Gary; Shelburne, Kevin B.; Davidson, Bradley S.; Callaghan, Jack P. (Journal of Applied Biomechanics, 2020)