title: Partial spectral element in the chronome of a human neonatal heart rate at term.
abstract: An initial infradian prominence characterizes the spectral element of the chronome or the time structure of half-hourly heart rates during the first 40 days after birth of a boy born at term. Immediately pertinent infradian prominence, which was previously documented for many premature infants and anticipated from the integration of 2-day segments of half-hourly data from infants born at term, is now displayed longitudinally. Dominating first are an about-weekly (circaseptan) or half-weekly (circasemiseptan) and an about 26-day (circatrigintan) component, with a subsequent change from infradian to circadian prominence.
authors.affiliation: Tokyo Women's Medical University, Daini Hospital, Tokyo, Japan. yoshi-w@jd5.so-net.ne.jp
authors.forename: Yoshihiko
authors.initials: Y
authors.lastname: Watanabe
authors.forename: Germaine
authors.initials: G
authors.lastname: Cornélissen
authors.forename: Theodor
authors.initials: T
authors.lastname: Hellbrügge
authors.forename: Fumihiko
authors.initials: F
authors.lastname: Watanabe
authors.forename: Kuniaki
authors.initials: K
authors.lastname: Otsuka
authors.forename: Othild
authors.initials: O
authors.lastname: Schwartzkopff
authors.forename: Franz
authors.initials: F
authors.lastname: Halberg
mesh_terms: D002909:Chronobiology Phenomena / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn / Q000502:physiology*; D008297:Male