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KMID : 0363620210420020050
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Journal of Korean Oriental Medicine
2021 Volume.42 No. 2 p.50 ~ p.61
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A Preliminary Study on the Change of Intraday Heart Rate Variability and Related Factors in Healthy People
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Noh Eun-Ji
Choi Su-Ji
Kim Deok-Ho
Choi Yun-Seok
Kim Dong-Il
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Abstract
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Objectives: The object of this study was to examine whether there was a significant difference between morning and afternoon in heart rate variability(HRV) in healthy Korean adults. In addition, the correlation between the characteristics of the subjects and the test results was analyzed.
Methods: From January 8, 2021 to January 29, 2021, twenty healthy subjects received short-term HRV test once in the morning(6:00~12:00) and twice in the afternoon(12:00~18:00). We used IBM SPSS Statistics 27 to test for statistical significance.
Results: The mean heart rate and PSI decreased significantly and SDNN increased significantly in the morning compared to the afternoon. There was no significant difference except RMSSD in HRV conducted at 2 hours intervals in the afternoon. Age had a significant difference in SDNN and TP, and exercise in average heart rate. Age, weekly exercise frequency, and monthly drinking frequency showed significant correlations with HRV indicators. As a result of multiple regression analysis, monthly drinking frequency was a variable that had a significant influence on TP.
Conclusions: The results of the tests performed with short interval were relatively consistent, and when comparing the results of the afternoon and the next morning, there were significant differences in several indicators. In the future, the number of HRV measurements should be increased and a larger-scale follow-up study including more subjects will be needed.
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KEYWORD
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Healthy volunteers, Heart rate, Circadian rhythm, Observational study, Preliminary data
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