Determining step lengths of an individual includes determining a relative time to be used in association with each of a plurality of heel strikes of an individual, and identifying the plurality of heel strikes. For each given identified heel strike of the plurality of identified heel strikes, a point in time that corresponds to the determined relative time is associated with the given identified heel strike. A foot speed associated with at least one of a left foot of the individual or a right foot of the individual is determined. The identified plurality of heel strikes, the associated point in time of each of the identified plurality of heel strikes, and the determined foot speed is then analyzed to determine a step length associated with at least one of the left foot of the individual or the right foot of the individual.
