스트레스 반응 수준에 따라 인지스트레스와 호흡훈련이 정신건강과 심박변이도에 미치는 영향 = The Effects of Cognitive Stress and Ventilatory Training according to the Stress Response Level on Mental Health and Heart Rate Variability

다국어 초록 (Multilingual Abstract)

Purpose: The present study investigated whether stress and ventilator ytraining (VT) have different effects on psychophysiological responses according to the magnitude of the stress response.
Method: Participants were twenty-three college students with a high-tsress response and twenty-three with a low-stress response. Psychological tests (depression, axniety, stress response, and resilience), hear t rate variability (SDNN, RMSSD, total power, LF, HF, and LF/HF ratio), and visual analogue scale (anxiety, stress, confidence, and relaxation) were measured at rest, after cognitive stress, and after ventilatory training.
Results: High-stress group showed higher depression, trait, state anxiety, and lower resilience compared to the low-stress group. The high-stress group showed higher VAS anxiety and stress, and lower relaxation and self-confidence scores. Computational task increaseds tress and decreased heart rate and RM-S SD. VT not only lowered anxiety and stress, increased relaxation and confidence, but also increased SDNN, RMSSD, total power, and LF. However, there was no significant d ifference between the stress response groups in all variables before and after the stress task and ventilatory training.
Conclusion: VT seems to be an effective way to restore the balance of th aeutonomic nervous system caused by stress.