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Biomechanics

Sagittal

Figure A-3 - Reference planes of the human body.

Roll- Joint or body rotation in the coronal plane.

Pitch- Joint or body rotation in the sagittal plane.

Yaw- Joint or body rotation in the transverse plane.

Stride- One full gait cycle, for example, from the a foot touching the ground to the same

foot touching the ground one full cycle later.

Step- The forward movement of a single leg. In a normal human walk, there are two steps

in each stride.

Stance leg- A leg in contact with the ground at any point in a walk.

Swing leg- A non-supporting leg at any point in a walk.