Abstract: The invention relates to a system for analyzing (1) the use of footwear items (11) configured to determine an association index between use parameter values (101) and shoe parameter values (201), said system a calculation computing device (30) configured for: Obtaining or loading posture or mobility parameter values (301) calculated from raw data generated by at least one connected sole (10); Obtaining or loading geographic parameter values (401) corresponding to a location of the at least one connected sole (10); Obtaining or loading shoe parameter values (201) including values of structural parameters, geometric parameters and/or aesthetic parameters of the footwear item (11); Calculating one or more use parameter values (101); Determining an association index value between the use parameter value(s) (101) and the shoe parameter values (201).

Abstract: The invention relates to a system of analyzing and quantifying a user's posture and gait, characterized in that it includes a pair 10 of soles 11, 12 each provided with an electronic box 100, 101, 102, each box comprising: an inertial platform, a data processing module 120, 121, 122, a data storage module 130, 131, 132, a means of communication 140, 141, 142, a power source 150.