The idea of this project is to study the asymmetry during human walking on some important angles. For this purpose, asymmetry functions have been developed. Until this moment, the asymmetry on these angles has been studied like something global with the asymmetry coefficients (for example, just taking the best value of asymmetry for every angle). With the asymmetry functions it is possible to study this asymmetry along the whole. Knowing this information, it could be possible to determine different anomalies depending on the angle and on the moment of the asymmetry. The ultimate goal is to obtain a computer program to perform the asymmetry functions at different angles from data obtained from patients.