Hölder exponent spectra for human gait

✍ Scribed by N Scafetta; L Griffin; B.J West

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 587 KB
• Volume: 328
• Category: Article
• ISSN: 0378-4371
• DOI: 10.1016/s0378-4371(03)00527-2

✦ Synopsis

The stride interval time series in normal human gait is not strictly constant, but uctuates from step to step in a complex manner. More precisely, it has been shown that the control process for human gait is a fractal random phenomenon, that is, one with a long-term memory. Herein we study the H older exponent spectra for the slow, normal and fast gaits of 10 young healthy men in both free and metronomically triggered conditions and establish that the stride interval time series is more complex than a monofractal phenomenon. A slightly multifractal and non-stationary time series under the three di erent gait conditions emerges.