Principles of Movement
Biomechanics of the Locomotor System
Planes of Motion
Parallel Sagittal Plane (Parallel Sagittal) - parallel with midline, divides body laterally.
Frontal Plane (Coronal) - divides the body into front and back (lateral raise, pull down,
military press).
Transverse Plane (Horizontal Plane) - divides the body superiorly and inferiorly (rotation at the
waist, bench press, internal external rotation).
Sagittal Plane - along the side of the body (front pulling down a shade, elbow bending forward,
close grip bench, squat).
Figure 1. The planes of motion in the body