[Experimental and clinical aspects of auto and coherence spectra of blood pressure, heart rate and respiratory rhythms].
Auto- coherence and phase spectra of blood-pressure, heart-rate, and respiration changes at various intervals were calculated in 34 healthy individuals and 46 patients with neurovegetative disorders in a direct way, partly by means of the Fast-Fourier transformations. It was only by 18-min recordings that reliably reproducible spectra could be obtained that permit exact evaluation of the statistical properties of these biorhythms.
D000328:Adult; D001794:Blood Pressure; D003201:Computers; D004562:Electrocardiography; D005260:Female; D006339:Heart Rate; D006801:Humans; D011187:Posture; D011676:Punched-Card Systems; D012119:Respiration; D013699:Temporal Arteries
Auto- und Kohärenzspektren von Blutdruck-, Herzfrequenz- und Atmungsrhythmen in Experiment und Klinik