1. A system for providing a sensory indication of a balanced or an imbalanced condition in the gait cycle of an ambulatory individual wearing a left shoe and a right shoe, the system comprising: (a) a first sensor array configured to be positioned in a left shoe, wherein the first sensor array includes one or both of a plurality of pressure sensors and a plurality of shear stress sensors; (b) a second sensor array configured to be positioned in a right shoe, wherein the second sensor array includes one or both of a plurality of pressure sensors and a plurality of shear stress sensors; and (c) a data collection and analysis system configured to: (i) receive data from the first and second sensor arrays; (ii) analyze the data to identify the balanced or imbalanced condition; and (iii) generate an output of the balanced or imbalanced condition to the individual.