What Does Hrv Stand For Heart Rate

While heart rate focuses on the average beats per minute heart rate variability hrv measures the specific changes in time or variability between successive heart beats.
What does hrv stand for heart rate. When you lose flexibility and responsiveness you die. Even if your heart rate is say 60 beats per minute that doesnt mean that your heart beats once every second or at one second intervals like a clock. For example a healthy heart rate is somewhat between 40 and 70. Rather there is variation among the intervals between your heartbeats.
Your heart is supposed to be able to switch. This variation is controlled by a primitive part of the nervous system called the autonomic nervous system ans. However as i have recently discovered resting heart rate is only a small part of the story. The amount by which the heart rate alters from beat to beat.
A healthy heart beat contains healthy irregularities. Generally a low hrv or less variability in the heart beats indicates that the body is under stress from exercise psychological events or other internal or external stressors. Heart rate variability hrv is a well understood phenomenon allowing us to monitor objectively physiological stress. Hrv is considered to be a more insightful measure of heart health than your basic resting heart rate rhr which only measures the number of beats per minute.
This is possibly the single most sensitive indicator. What is heart rate variability hrv. It works regardless of our desire and regulates among other things our heart rate blood pressure breathing and digestion. Amidst the many improvements to apples heart rate measurements with ios 11 and apple watch apple also introduced a new measurement called an hrv heart rate variability average.
Hrv is simply a measure of the variation in time between each heartbeat. For many other parameters we are often dealing with such as body weight temperature blood pressure we typically have in mind some range reference values that are supposedly ok or indicative of a good health condition. Perhaps the most spectacular example of this is heart rate variability ie. However historically hrv analysis has been poorly standardized leading to difficulties in properly designing and implementing studies as well as difficulties in comparing studies outcomes.
Hrv can also be used to determine other health factors like mood body recovery stress level and fatigue.