Stress (스트레스연구)

The Korean Society of Stress Medicine (대한스트레스학회)
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Correlation of Stress and HRV in Korean between the Age 30s and 40s

한국 30~40대 성인에서의 인지적 스트레스와 심박동 변이의 상관관계

Koh, Hyunmin;Shin, Ho Cheol
고현민;신호철

  • Published : 20111200
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Abstract

There were many attempts to evaluate the correlation between stress and cardiovascular disease. It is important that stressful emotional status and process can impact on dynamic autonomic control of the heart. Subjects between the age of 30s and 40s were recruited from January to May of 2010. To examine the association of emotional stress and heart rate variability (HRV) we gathered life event stress scale scores, cognitive stress response scale scores, and HRV data using 5-minute electrocardiographic recordings of subjects. Cognitive stress score was inversely associated with three indices of HRV (SDNN, TP, and LF) significantly After adjusting for age, BMI. However, there was no significant relationship between life event stress score and HRV. We found cognitive stress had a significant correlation with SDNN as a predictive variable. Cardiac autonomic function had stronger relationship with the amount of cognitive stress, which is subjective to individual, than the amount of life event stress. Therefore cognitive stress can possibly be considered as a risk factor of cardiovascular disease. We suggest further studies about stress management to prevent cardiovascular disease and using HRV as a predictive marker.

정신적 스트레스와 심혈관 질환 사이의 깊은 연관성에 대해 많은 기전들이 연구되고 있다. 스트레스에 대한 노출 상태와 인지 과정이 심장의 자율신경 조절기능에 미치는 영향은 중요하다고 생각된다. 본 연구는 30~40대 성인을 대상으로 2010년 1월부터 5월 동안 연구가 진행되었으며 이평숙의 생활사건 스트레스량 측정, 인지적 스트레스 반응척도 이용하여 스트레스량을 평가하였고 SA-2000E (medicore 2002)를 이용하여 5분간의 심전도 기록을 통해 HRV를 측정하였다. 인지적 스트레스량은 HRV 지표 중 SDNN, TP, LF와 유의한 음의 상관관계를 보였으며 이는 나이, 비만도, 흡연을 보정한 이후에도 의미 있게 나타났다. 생활사건 스트레스량은 HRV와 관련성이 없었다. SDNN에 통계적으로 유의하게 영향을 주는 위험인자로는 나이, 비만도, 흡연, 인지적 스트레스였다. 심장의 자율신경기능은 생활사건 스트레스량보다는 개개인이 스트레스 정도를 인식하는 방식에 따른 인지적 스트레스량이 영향을 미치는 것으로 나타났고 따라서 인지적 스트레스가 심혈관 질환의 위험인자로 작용할 가능성이 시사되었다. 향후 스트레스 관리에서 심박동 변이를 심혈관 질환 발생의 예측인자로 사용 할 수 있을 지에 대한 추가적인 연구가 필요할 것으로 사료된다.

Keywords

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