There are both clinical and technological innovations in gait analysis (GA). A large number of data and graphics are produced for the evaluation of certain criteria in three-dimensional gait analysis; While this increases the objectiveness of the assessment, it makes the assessment more complex and difficult to interpret. Therefore, there is a need for a summary index, particularly a single measure of the quality of a given gait pattern. A few measurements have been developed which can be calculated starting from the data of GA studies and have clinical applications. These measurements stem from kinematic data (Normalcy Index, Gait Deviation Index, Gait Profile Score, Movement Deviation Profile); partly Hip Flexor Index (HFI) or completely (GDI-Kinetic) kinetic data. On the other hand, technological innovations in analysis can be classified according to two different approaches: non-wearable sensors (NWS) or wearable sensors (WS). NWS systems can be divided into two sub-groups: Based on image processing (IP) and floor sensors (FS). WS systems use sensors placed on various parts of the feet, knees, thighs or waist, such as accelerometers, gyroscopic sensors, magnetometers, sensors, extensometers, goniometers, active markers, electromyography, etc. The purpose of this review is to examine the latest developments in gait analysis from a clinical and technological perspective and first to write indices for the clinical evaluation of gait analysis data from a clinical point of view, followed by the latest developments in gait analysis technology.