Devlelopment of very-short-term Multifractal Hölder Exponents of Fetal Heart Rates

We focused our attention on the linear correlation between multifractal Hölder exponents of the fetal heart rate and gestational weeks. The exponents can evaluate the inhomogneous local roughness in FHR. We noticed that mature fetuses show quite different fetal heart rate (FHR) behavior compared to immature fetuses when their FHR changes greatly or less greatly during the very short term period of less than 16 successive heartbeats. Motivated by this notice, we aim to study whether the local irregularity in FHR during the period of large or small heart rate variation can be a probe to correctly gauze the maturit…