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KMID : 1143620140180020078
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Korean Journal of Nuclear Medicine Technology
2014 Volume.18 No. 2 p.78 ~ p.82
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Relationship between Heart Rate Variability (HRV) and Serum Cortisol Level to Life Stress
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Shin Sook-Hee
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Abstract
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Purpose : The physiological and biochemical responses of healthy men and women to life stress were measured in order to investigate the correlation between these two responses under the normal situation.
Materials and Methods : The population of the research is some randomly chosen health college students located in Daejeon City during the period from August to September 2014, and the sample of 94 students. Heart rate variability (HRV), blood pressure (BP) were selected as physiological stress indices and serum cortisol level was used as a biochemical stress biomaker. The data which is collected used SPSS19.0 programs and frequency and percentage and T-test, correlation.
Results : Male showed the significant higher value of serum cortisol level (p<0.05), BP (p<0.05), and LF/HF ratio of HRV (p<0.05) than female. The difference of BP between correlated significantly with serum cortisol level (p<0.05). The LF/HF ratio of HRV also correlated significantly with serum cortisol level (p<0.05)
Conclusion : We suggest that LF/HF ratio of HRV and BP may be good indices for the assessment of life stress.
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KEYWORD
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Life stress, Serum Cortisol, HRV, LF/HF ratio
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