Heart Rate Patterns Observed in Medical Monitoring

摘要

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)