BCIA Continuing Education Posts

The electrocardiograph (ECG) and photoplethysmograph (PPG) are two methods of detecting heart rate (HR) and heart rate variability (HRV)....

Respiratory sinus arrhythmia (RSA) is the speeding and slowing of the heart across each breathing cycle. RSA is the primary and entirely...

Heart rate (HR) is important because a high rate can reduce heart rate variability (HRV), the changes in the time intervals between...