Abstract: A fitness tracking system includes a receiver to obtain geolocation data. A method is used to determine the quality of the geolocation data by analyzing the dispersion of the geolocation coordinates during the user fitness activity. The geolocation data is used for calculating exercise metrics and displaying fitness activity when the geolocation data quality satisfies the data quality criteria.

Abstract: Apparatus and method for determining workout or training readiness. In one embodiment, the method comprises establishing communication between a mobile device associated to the user and a sensor disposed in or on at least one shoe of the user, providing via a display of the mobile device an instruction to the user to perform one or more jumps, transmitting a signal from the mobile device to the sensor, the signal causing the sensor to begin collection of data, and the transmission being timed to coincide with the performance of the one or more jumps, receiving from the sensor the data relating to the performance of the one or more jumps, processing the data at a processor of the mobile device to determine a readiness score of the user, and displaying at least the readiness score to the user via the display of the mobile device.