When the Physiotherapist meets the patient to start the process of evaluation and treatment, the movement analysis is carried out by considering each component, separately (joint or plan), or observing all aspects in an integrated perspective. Health professionals generally use clinical tests, such as rating scales, which can be less comprehensive andrequire subjective input. Other tools are also used, suchas: Force platforms, wearable devices, optoelectronic systems, electrogoniometers , electromyography and accelerometers. These instruments and clinical tests may not establish a true picture of the patient functional situation, because they can not accurate, objective and quantitatively measure whether the performance of activities is being im-proved or not. Thus, emerges the importance of developing new instruments and methods to assess functional movementin these patients.