Heart Rate Variability Analysis: Application Overview

Heart rate variability (HRV) is very well known and highly practiced bio-marker for cardiac and related systems disease diagnosis. The cardiac alterations in the time interval between two consecutive heart beats is HRV and also referred as the fluctuations in the inter beat intervals (IBIs). A healthy heart is rhythmic and has complex and oscillating nature which provides the sudden and rapid adjustments in physiological changes to hemostasis. This paper briefly reviews current application perspectives of this biomarker in various disease diagnoses along with its usefulness, strategies and challenges.