BlueBT HRV combines wireless single-channel ECG recording with heart rate variability analysis for research and professional assessment.
Heart Rate Variability
Heart rate variability (HRV) is a useful indicator of cardiac autonomic balance. SDNN (the standard deviation of RR intervals) is a key metric used for HRV assessment.
HRV assessment features
• Cardiac-risk assessment
• Baevsky's Stress Index
• SDNN
• LF/HF ratio
Results are intended for research and clinical interpretation by qualified professionals; they are not a standalone diagnosis.