Measurement of chest wall fibrations due to the activity of the heart.
D000328:Adult; D055592:Biophysical Phenomena; D001703:Biophysics; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D006801:Humans; D008297:Male; D013909:Thorax / Q000502:physiology*; D014732:Vibration