Accession Number : AD0467734

Title :   HEART RATE PATTERNS OBSERVED IN MEDICAL MONITORING.

Descriptive Note : Technical rept., Jan 61-Dec 64,

Corporate Author : SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TX

Personal Author(s) : Simons, David G. ; Johnson, Robert L.

Report Date : MAY 1965

Pagination or Media Count : 15

Abstract : The study included heart rate records from several hundred individuals under a wide variety of aerospace flight stress situations including sleep, quiet wakefulness, clinical stress testing, simulated aircraft flight, and F-100 aircraft flight. Automated beat-by-beat heart rate analysis recorded at 1 mm. per second paper speed clearly demonstrated a variety of heart rate patterns. Base heart rate values which reflected homeostatic levels were distinguished from heart rate reflex activity identified as transient disruptions of homeostasis. Reflex patterns were divided into respiratory heart rate and slow wave heart rate reflex activity. Three forms of slow waves were identified: cardioaccelerator, balanced, and cardiodecelerator. The discussion included physiologic mechanisms contributing to the observed heart rate reflex patterns. (Author)

Descriptors :   (*ELECTROCARDIOGRAPHY, AEROBIOLOGY), (*PULSE RATE, PATTERN RECOGNITION), TELEMETERING DATA, STRESS(PHYSIOLOGY), RESPIRATION, ELECTRONIC RECORDING SYSTEMS, SLEEP, BLOOD PRESSURE, AUTONOMIC NERVOUS SYSTEM, FLIGHT CREWS, JET FIGHTERS, PHYSIOLOGY.

Distribution Statement : APPROVED FOR PUBLIC RELEASE