Scaling-violation phenomena and fractality in the human posture control systems

Abstract

By analyzing the movements of quiet standing persons by means of wavelet statistics, we observe multiple scaling regions in the underlying body dynamics. The use of the wavelet-variance function opens the possibility to relate scaling violations to different modes of posture control. We show that scaling behavior becomes close to perfect, when correctional movements are dominated by the vestibular system.

12 pages, 4 figures, to appear in Phys. Rev. E

References in corpus (3)

• Multiresolution wavelet analysis of heartbeat intervals discriminates healthy patients from those with cardiac pathology
• Receiver-Operating-Characteristic Analysis Reveals Superiority of Scale-Dependent Wavelet and Spectral Measures for Assessing Cardiac Dysfunction
• Multiscale analysis of blood pressure signals