2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/86908The first part of this Review describes a few of the main methods that have been employed in non-linear time series analysis with special reference to biological applications (biomechanics). The second part treats the physical basis of posturogram data (human balance) and EMG (electromyography, a measure of muscle activity).72 pages, 10 figures. Written as part of a Biosignals ProjectData Analysis, Statistics and ProbabilityMedical Physicstext