Wearable computing devices adapted to be worn on the feet are provided for acquiring, validating and analyzing athletic movement data. Generally, the wearable computing devices can include one or more processors, a memory, and one or more sensors for sensing certain characteristics of an athletic movement. A local computing device is provided for receiving data from the wearable computing device that is indicative of the characteristics of the athletic movement, extracting selected portions from the data, and transmitting the selected portions to a remote server system. The remote server system can be configured to store, aggregate and update a data in a database, and generate one or more normalized values and/or interventions associated with the athletic movement. The normalized values may indicate to the user a susceptibility to injury, progression towards return to play or propensity for success with respect to a sport.