11
edits
Changes
Jump to navigation
Jump to search
Line 1:
Line 1: − + + − + + − +
→People are interested in HRV primarily because it is controlled by the autonomic nervous system (ANS), which also regulates heart rate and blood pressure. The two components of the ANS, the sympathetic and the parasympathetic nervous system, bo
===HRV is defined as the changes in the time interval between successive heartbeats. ===
===Definition ===
HRV is defined as the changes in the time interval between successive heartbeats.
===People are interested in HRV primarily because it is controlled by the autonomic nervous system (ANS), which also regulates heart rate and blood pressure. The two components of the ANS, the sympathetic and the parasympathetic nervous system, both influence HRV. This means that HRV can potentially provide useful information about questions pertaining to our overall nervous system, including information about stress, rest, recovery, and immune response.===
===Common Uses===
People are interested in HRV primarily because it is regulated by the autonomic nervous system (ANS), which also regulates heart rate and blood pressure. This means that HRV can potentially provide useful information about questions pertaining to our overall nervous system, including information about stress, rest, recovery, and immune response. The two components of the ANS, the sympathetic and the parasympathetic nervous system, both influence HRV.
===How is HRV Measured===
===Measurement Approach===
Since HRV measures the change over time of the interval between heart beats, there are many options available for producing a value relevant to a specific question. The heartbeat itself is not instantaneous, of course, but for the purpose of HRV measurement, the time is measured between ECG peaks known as R-R intervals. However, many people have irregular heartbeats, and so HRV is better calculated using NN intervals; that is, the time between ECG peaks when the heart is in a normal rhythm. Four common ways of determining HRV values, with their commonly used associations, are:
Since HRV measures the change over time of the interval between heart beats, there are many options available for producing a value relevant to a specific question. The heartbeat itself is not instantaneous, of course, but for the purpose of HRV measurement, the time is measured between ECG peaks known as R-R intervals. However, many people have irregular heartbeats, and so HRV is better calculated using NN intervals; that is, the time between ECG peaks when the heart is in a normal rhythm. Four common ways of determining HRV values, with their commonly used associations, are: