Torque and EMG in isometric graded flexion-rotation and extension-rotation

摘要

The main objective of the study was to measure the magnitude and pattern of electromyographic (EMG0 activity of the trunk muscles in combined motions of flexion-rotation and extension-rotation. Another objective of the study was to determine the torque-EMG Root mean Square (RMS) relationship in these activities for predictive purposes. Nineteen normal young adult subjects who met the including criteria were fitted with 12 pairs of surface electrodes on their external and internal oblique, rectus abdominis, latissimus dorsi, and erector spinae muscles at T10 and L3 levels bilaterally.