Sacrum Sagittal plane Skin movement artifacts Stance phase Subtalar joint Superior Synthetic markers Swing phase Talocrural joint Talus Tibia Transepicondylar Transverse plane Consists of the fused components of five sacral vertebrae located between the 5th lumbar vertebra and the coccyx. It attaches the axial skeleton to the pelvic girdle of the appendicular skeleton via paired articulations. The plane that divides the body or body segment into the right and left parts. The relative movement between skin and underlying bone. The period of time when the foot is in contact with the ground. Located between the distal talus and proximal calcaneous, also known as the talocalcaneal joint. Above or at a higher level (towards the head). Computational representations of passive markers located on the kinematic model. The period of time when the foot is not in contact with the ground. Located between the distal tibia and proximal talus, also known as the tibial-talar joint. The largest bone of the ankle transmitting weight from the tibia to the rest of the foot. The large medial bone of the lower leg, also known as the shinbone. It is located between the knee joint and the talocrural joint. The line between the medial and lateral epicondyles. The plane at right angles to the coronal and sagittal planes that divides the body into superior and inferior parts. The time rate of change of displacement. Velocity