4/11/2023 0 Comments Youtube video fractal diurnal![]() ![]() Conclusions: CFS patients had more abrupt interruptions of voluntary physical activity during diurnal periods in normal daily life, probed by the decreased correlation in the negative modulus maxima of the wavelet-transformed activity data, possibly due to their exaggerated fatigue. Such a difference was identified neither by the DFA nor WTMM method. Here are some of the most stunning examples of fractals in nature. The WTNMM method revealed that, in diurnal activities, CFS patients had significantly (p<0.01) smaller fractal scaling exponent (0.87 &PLUSMN 0.03) compared to controls (1.01 &PLUSMN 0.03). Most people are extremely familiar with fractals because they are seen throughout the natural world. No group difference was found in nocturnal activities. Results: Both for CFS and CON, we found the fractal time structures in their diurnal physical activity records for at least up to 35 minutes. We compared the fractal scaling exponents for CFS and CON by each method. Colorful glowing spotlight beams on black gradient stage. Motion abstract blue rays dark grunge background. Motion abstract yellow rays colourful grunge background. Thus, we further developed a new method, the wavelet transform negative modulus maxima (WTNMM) method, which could evaluate the temporal correlation at the interruption of activities. Cinematic background with smoke and blue light rays with motion camera. We hypothesized that, due to their illness- and/or fatigue-induced resting episodes, altered physical activity patterns in CFS patients might be observed at the interruption of activity bursts. ![]() I have seen the mathematics of fractals used in biology as a way of modeling very complex body surfaces (say, of lizards covered with clunky scales). Methods: Fractal scaling exponent of diurnal and nocturnal physical activity time series in 10 CFS patients and 6 healthy control subjects (CON) were calculated by the detrended fluctuation analysis (DFA) and the wavelet transform modulus maxima (WTMM) method. Notice that Sal mentioned a little of this late in the video where he was comparing the coasts of real land masses to fractal shapes. Our objectives were to study the temporal correlation of physical activity time series in patients with chronic fatigue syndrome (CFS) during normal daily life and to examine if it could identify the altered physical activity in these patients. ![]()
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