Sagittal plane moment arms of the female lumbar region rectus abdominis in an upright neutral torso posture
Clinical biomechanics (Bristol, Avon). 2005 Mar; 20(3): 242-6.
Prior imaging studies of torso muscle moment arms for use as inputs into biomechanical models have been derived from subjects lying supine. Recent research suggests moment arms of the rectus abdominis are larger when standing versus lying supine.