Marker Definition Position LFHD Left front head Located approximately over the left temple RFHD Right front head Located approximately over the right temple Placed on the back of the head, on the horizontal LBHD Left back head plane of the front head markers Placed on the back of the head, on the horizontal RBHD Right back head plane of the front head markers C7 7th cervical vertebrae Spinous process of the 7th cervical vertebrae T10 10th thoracic vertebrae Spinous process of the 10th thoracic vertebrae Jugular notch where the clavicles meets the CLAV Clavicle sternum STERN Sternum Xiphoid process of the sternum RBAK Right back Middle of the right scapula LSHO Left shoulder Acromioclavicular joint Upper arm between elbow and shoulder – left LUPA Left upper arm lower LELB Left elbow Lateral epicondyle of the humerus LFRA Left forearm Lower arm between elbow and wrist – left lower LWRA Left wrist marker A Lateral epicondyl of the radius LWRB Left wrist marker B Medial epicondyle of the ulna Dorsum of the hand just below head of 2nd LFIN Left finger metacarpal RSHO Right shoulder Acromioclavicular joint Upper arm between elbow and shoulder – Right RUPA Right upper arm higher RELB Right elbow Lateral epicondyle of the humerus RFRA Right forearm Lower arm between elbow and wrist – Right higher RWRA Right wrist marker A Lateral epicondyl of the radius RWRB Right wrist marker B Medial epicondyle of the ulna Dorsum of the hand just below head of 2nd RFIN Right finger metacarpal Left anterior superior LASI Directly over left ASIS iliac spine (ASIS) Right anterior superior RASI Directly over right ASIS iliac spine Left posterior superior LPSI Directly over left PSIS iliac spine (PSIS) Right posterior superior RPSI Directly over right PSIS iliac spine Between hip and knee on the lateral side – left LTHI Left thigh lower Left superior anterior Lateral superior anterior surface of the proximal- LSATHI thigh third of the thigh Left superior posterior Lateral superior posterior surface of the proximal- LSPTHI thigh third of the thigh Left inferior anterior Lateral inferior anterior surface of the proximal - LIATHI thigh third of the thigh Left inferior posterior Lateral inferior posterior surface of the proximal - LIPTHI thigh third of the thigh LKNE Left knee Lateral epicondyle of the femur (calibration only) Between hip and knee on the lateral side – Right RTHI Right thigh higher Right superior anterior Lateral superior anterior surface of the proximal - RSATHI thigh third of the thigh Right superior posterior Lateral superior posterior surface of the proximal - RSPTHI thigh third of the thigh Right inferior anterior Lateral inferior anterior surface of the proximal - RIATHI thigh third of the thigh Right inferior posterior Lateral inferior posterior surface of the proximal - RIPTHI thigh third of the thigh RKNE Right knee Lateral epicondyle of the femur (calibration only) Between knee and ankle – left lower (calibration LTIB Left tibia only) Left superior lateral Superior lateral posterior surface of the middle- LSLTIB tibia third of the calf Left superior medial Superior medial posterior surface of the middle- LSMTIB tibia third of the calf Inferior lateral posterior surface of the middle-third LILTIB Left inferior lateral tibia of the calf Left inferior medial Inferior medial posterior surface of the middle-third LIMTIB tibia of the calf LANK Left ankle Lateral malleolus of the fibula (calibration only) Between knee and ankle – left lower (calibration RTIB Right tibia only) Right superior lateral Superior lateral posterior surface of the middle- RSLTIB tibia third of the calf Right superior medial Superior medial posterior surface of the middle- RSMTIB tibia third of the calf Right inferior lateral Inferior lateral posterior surface of the middle-third RILTIB tibia of the calf Right inferior medial Inferior medial posterior surface of the middle-third RIMTIB tibia of the calf RANK Right ankle Lateral malleolus of the fibula (calibration only) Second metatarsal head, on mid-foot side of LFootCen Left foot centre equines break between forefoot and mid-foot Place on calcaneus at the same height above plantar LHEEL Left heel surface of foot as foot centre marker Medial surface of the foot anterior to the LFootCen LFootMed Left foot medial marker Lateral surface of the foot posterior to the LFootLat Left foot lateral LFootCen marker Second metatarsal head, on mid-foot side of RFootCen Right foot centre equines break between forefoot and mid-foot Place on calcaneus at the same height above plantar RHEEL Right heel surface of foot as foot centre marker Medial surface of the foot anterior to the RFootCen RFootMed Right foot medial marker Lateral surface of the foot posterior to the RFootLat Right foot lateral RFootCen marker Note: Redundant makers for static capture only in bold. Cluster markers (as identified in italics) did not require exact anatomical landmarks as they were not required for segment definition, and were influence by leg guard position. .