Age-related changes in power spectra of efferent phrenic activity in the piglet.
Power spectral analysis of phrenic nerve discharge in neonatal swine revealed the presence of both high-frequency oscillations (HFO) (95-150 Hz) and medium-frequency oscillations (MFO) (15-35 Hz). The HFO was shown to be age-related; the MFO was not. The data indicated that at least one manifestation of maturation of the respiratory rhythm generator is the increase with age of the frequency of the HFO.
Department of Physiology, State University of New York, Brooklyn 11203.
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HL
Cohen
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Gootman
A M
AM
Steele
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LP
Eberle
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Rao
D000375:Aging / Q000502:physiology*; D000818:Animals; D000831:Animals, Newborn; D010791:Phrenic Nerve / Q000502:physiology*; D012119:Respiration; D013057:Spectrum Analysis; D013552:Swine