A system and method implements video capture technology, in combination with computer program engines and proprietary algorithms to capture, analyze and objectively score human movement, and to identify, differentially diagnose and assess the root causes of observed pathokinematic (pathological movement) patterns. The system calculates demographic risk of injury and compares with identified movement issues to determine potential performance issues and associated relative risks for the subject. Specific, individualized corrective measures or interventions are selected and targeted to the individual and his or her movement patterns, to improve those pathokinematics. The result is decreased likelihood of certain types of lower extremity injuries, faster and more effective rehabilitation, the reduction of movement related pain, and significant improvement on specific performance based metrics used in activities and professions requiring athleticism, and quality measurement of the quality of normal “activities of daily living.”