II. The Normal Configuration and Amplitude
An analysis of the patterns and amplitudes of the precordial movements is presented. Normal young adult subjects had three types of patterns. Type I occurred in 78 per cent, type II in 14 per cent, and type III in 8 per cent of the subjects studied. The variations of the kinetocardiogram from apex cardiograms and pneumocardiograms are discussed.
- © 1953 American Heart Association, Inc.