1. A method for obtaining athletic data, the method comprising: at a processor, measuring a body position and acceleration of a user; analyzing the body position to determine whether predetermined criteria indicative of a known exercise activity are met; arming one or more sensors when the body position has not substantially changed and the acceleration of the user has remained at zero for a predetermined period of time, wherein the arming comprises activating the one or more sensors to collect exercise data; determining a time at which the one or more sensors are armed; after the time at which the one or more sensors are armed, collecting the exercise data, during a first time period associated with substantially no acceleration and no change in orientation of the user and during a second time period associated with a first acceleration and a change in orientation of the user; analyzing the exercise data to determine whether the data collected during the second time period corresponds to the known exercise activity; and when it is determined that the data collected during the second time period corresponds to the known exercise activity: calculating an initial burst by determining a difference between the first and second times; and enabling display of the calculation.